11 PROPOSED ADMINISTRATIVE RULES

 

 

 

DE PARTMEN T OF CONSU MER AND INDUS TRY SER VIC ES DIRECTO R’S OFF ICE

CONS TRU CTIO N SAFETY STAND ARDS

 

Filed with th e Secretar y of Stat e on

These ru les tak e effect 7 days after fili ng with th e Secretar y of Stat e

 

(By auth ority conferr ed on th e director of th e dep artm ent of con sum er an d industr y services by sections 19 an d 21 of 1974 PA 154 an d Execut ive Reorgan izat ion  Order  No. 1996 -2, MCL 408 .1019 , 408 .1021 , an d 445 .2001 )

 

R  408 .41401 ,  R  408 .41455 ,  R  408 .41456 ,  R  408 .41461 ,  R  408 .41462 ,  R  408 .41463 , R

 

408 .41464 ,	R	408 .41465 ,  R	408 .41466 ,  R   408 .41467 ,  R  408 .41471 ,  R	408 .41472 ,	R
408 .41474 ,	R	408 .41475 ,  R	408 .41476 ,  R   408 .41477 ,  R  408 .41478 ,  R	408 .41479 ,	R

408 .41481 , an d R 408 .41483 of th e  Michigan  Administrat ive  Code  ar e  am ended  an d  R 408 .41454 of th e Code is rescinded as follows:

PART 14. TUNNE LS, SHAFTS, CAISS ONS, AND COFFERD AMS R 408 .41401            Scope .

Rule  1401 .    This  part  applies  to th e con stru ction,  modificat ion,  an d  major  rep air of

tunn els, shafts, caissons, CHAMBERS, PASSAGEWAYS, an d coffer dam s, an y oth er aspect of tunn el con stru ction, an d th e use an d ma int enan ce of equipment. This  part  does  not apply to rout ine ma int enan ce of an exis ting stru ctur e; EXCAVATIO N AND TRENCHING OPE RATIO NS AS PRESCRIB ED BY R 408 .40901 ET SEQ., CONSTRUCTIO N SAFE TY STANDARD    PART    9    ‘EXCAVATIO N,    TRENCHING    AND    SHORI NG;’     NOR UN DERGRO UN D ELECTRIC AL TRANSMISSIO N AND DISTRIB UTIO N LI NES AS PRESCRIB ED IN R 408 .41601 ET SEQ., CONSTRUCTIO N SAFE TY STANDARD PART 16 ‘POWER TRANSMISSIO N AND DISTRIB UTIO N.’ THIS SECTIO N ALSO APP LI ES TO  CUT-AND-COVER   EXCAVATIO NS   WHICH   ARE   BOT H   PHYSICALLY CONNE CTED TO ONGOI NG UNDERGRO UND CONSTRUCTIO N OPE RATIO NS WITHIN THE SCO PE OF THIS SECTIO N AND COVERED IN  SUC H A MANNE R AS TO  CREATE  CONDITIO NS  CHARACTERISTIC   OF   UN DERGRO UN D CONSTRUCTIO N.

 

R 408 .41454   RES CINDED .

 

R 408 .41454 App lic a bili t y.

 

 

R u le 1454 . (1 ) All ru le s in th is p art s ha ll a pp ly t o a tunn el, a s ha ft , a ca iss on , or a coffe r d am , excep t  that  a  fr ee  a ir  tunn el that  is  le ss  than  225  fee t  in  le n gth  is  excep t ed  fr om  th e p r ovis ion s of R 408 .41464 (1 ).

(2) ) An un occu p ie d au ge r  or  p ipe ja ck in g tunn el is  excep t ed  fr om  th e ru le s  of th is  p art pe rta in in g t o tunn els .

(3) ) An occu p ie d au ge r or p ipe ja ck in g tunn el s ha ll n ot be s u b je ct t o th e ru le s of th is p art that pe rta in t o tunn els , excep t for th e r eq u ir e m e nt s of R 408 .41471 (7 ) an d th e r eq u ir e m e nt s of R 408 .41471 (8 ) that pe rta in t o lifelin es .

(2 ) An occu p ie d au ge r or p ipe ja ck in g tunn el s ha ll be m on it or ed for a ir q ua lit y imm edi at ely be for e e nt e r in g th e tunn el an d d ur in g th e pe r iod of occu p an cy in th e tunn el.

 

R 408 .41455   De finitio ns ; A to C. H.

Rule 1455 .  (1)  "Atm ospheric press ur e" mean s th e press ur e of air at  sea level, usua lly

14.7 p.s.i.a . (1 atm osphere) or zero p.s.i.g .

(2)   "Auger tunn el" mean s that A tunn el w h ich THAT is excavat ed by use of a cont inu ous flight au ger system, with or with out a sleeve or oth er type of liner.

(3)   "Bulkh ead" mean s a s tru ctur e w h ich is u sed t o sep arat e on e ar e a fr om an oth e r . AN AIRTIG HT STRUCTUR E SEP ARATING THE WORK ING CHAMBER FROM FREE AIR OR FROM ANOTHE R  CHAMBER  UN DER  A  LESSER  PRESSUR E  THAN  THE WORK ING PRESSUR E.

(4)   "Caisson" mean s eith er a genera lly vert ical foun dat ion un it below gra de or a cham ber placed in th e groun d or wat er for th e pur pose of excavat ing earth AND IN WHICH IT IS POSSIBL E FOR A PE RSO N TO WORK UN DER AIR PRESSUR E GREATER THAN ATMOS PHE RIC P RE SSUR E TO EXCAVATE MATE RIAL BE LOW WATE R LEVE L.

(5)    "Coffer dam " mean s a temporar y stru ctur e used to contr ol th e flow of wat er an d oth er mat erial dur ing con stru ct ion operat ions.

(6)       "Compressed air" mean s that AN environm ent w h ich THAT ha s a  press ur e great er than  atm ospheric press ur e.

(7)           “DECANTING” MEANS A METHOD USE D FOR DECOMPRESSING UN DER EMERGEN CY CIRC UMST ANCES. IN THIS PROCEDURE, THE EMPLOYEE S ARE BROUGHT TO ATMOS PHE RIC PRESSUR E WITH  A VERY HIGH GAS TEN SION IN THE TISS UES AND THEN IMMEDIATELY RECOMPRESSED IN A SECOND  AND SEP ARATE CHAMBER OR LOCK .

(8)   “EMERGEN CY LOCK ” MEANS A LOCK DESIGN ED TO HOLD AND PE RMIT THE QUI CK PASSAGE OF AN EN TIR E SHIFT OF EMPLOYEE S.

(9)   “HIGH AIR” MEANS AIR PRESSUR E USE D TO SU PP LY POWER TO PNEU MATIC TOOLS AND DEVICES.

 

R 408 .41456   De fin itio ns ; M to W.

Rule 1456 .  (1)  "Man lock" mean s a cham ber thr ough which employees pass from 1 air press ur e environm ent int o an oth er.

(2)     “MATERIALS LOCK ” MEANS A CHAMBER THROUGH WHICH MATERIALS AND EQUIP MEN T PASS FROM ONE AIR PRESSUR E EN VIRONM EN T INTO ANOTHE R.

(3)   (2) "Occu pied tunn el" mean s an y tunn el ent ered by 1 or more employees.

 

 

(4)   (3) "Pr ess ur e" mean s a for ce acting on a un it ar ea, usua lly shown as poun ds per squar e inch (p.s.i.).

(5)     (4) "Qua lified employee" mean s one  who,  by  extensive  kn owledge ,  tra ining,  an d expe rience, ha s su ccess fully demonstrat ed th e ability to solve or resolve problems relat ing to th e subject matt er, th e work , or th e pr oject .

(6)   (5) "Safety screen" mean s an airt ight an d wat ert ight diaphra gm placed vert ically across th e uppe r part of a com pressed air tunn el between th e face  an d  bulkh ead  in  order  to restra in sudde n floodin g of th e crown of th e tunn el between th e  safety  screen  an d  th e bulkh ead, thu s providing a mean s of refuge an d exit from a floodin g or flooded tunn el.

(7)   (6) "Sha ft " mean s a vert ical or inclined opening excavat ed below groun d level.

(8)   (7) "Tunn el" mean s a genera lly horizonta l excavat ion or facility more than l4 inches in diam eter, width , or height an d more than 6 feet in length below groun d or wat er. Fa cilities used for th e acquisition of minera ls, ores, an d foss il fuels, which ar e comm only kn own as mines, ar e excluded from th is definition.

(9)   (8)  "Work ing cham ber" mean s th e space or com partm ent  un der air press ur e in which th e work is being done.

 

R 408 .41461   Advance  no tic e of tunne l excava tio n .

Rule 1461 . (1) Befor e th e start of a tunn el, as defined IN R 408 .41456 , WHICH IS 24 inches or more in diam eter, height or width , AND which will be occu pied by an employee, a report prepar ed by th e employer per form ing th e tunn el excavat ion sha ll be sent to th e Michigan Dep artm ent of Consum er an d Industr y Services, Constru ct ion Safety Divisi on, 7150 Harr is Drive, P.O. Box  30015  30645 ,  Lan sing,  Michigan  48909 -8145 ,  an d  th e Mich igan Dep artm e nt of Pu blic H e a lth , O ccu p at iona l H e a lth Divisi on , P .O . B ox 30035 , 3500 N . L ogan , L an s in g, Mich igan 48909 , in addition to th e followin g civil auth orities in th e ar ea: hospita l, police dep artm ent , fire dep artm ent , an d sheriff dep artm ent . The report sha ll conta in ALL OF th e following informat ion:

(a)     Nam e of contra ctor or contra ctors.

(b)     Start ing dat e.

(c)     Length of tunn el.

(d)    Diam eter of cut .

(e)     Finished diam eter.

(f)      Num ber of sha fts.

(g)     Depth of sha fts.

(h)     Locat ion of sha ft s.

(i)       Meth od of tunn eling.

(j)       Maximum work ing press ur e in tunn el or sha ft . (k) Type of primar y liner.

(l)       Num ber of shifts.

(m)   Pr oject ed com pletion dat e.

(n )  Pr oject ed ma ximum work for ce with in tunn el.

(2)      All Part ies notified pur suant  to subru le (1) of th is ru le sha ll be notified when th e work ha s been com pleted.

(3)     If, after th e start  of an y tunn el pr oject , a tunn el or sha ft that  th e employer ha s shown to be con stru cted, modified, or repaired un der atm ospheric con ditions requires th e tunn el to be

 

 

press ur ized, THEN th e employer sha ll notify th e CONSTRUCTIO N SAFE TY DIVISION AT THE Michigan dep artm ent s of con sum er an d industr y services, an d h e a lth , 7150 HARRIS DRI VE, P.O. BOX 30645 , LANSIN G, MIC HIGAN 48909 -8145 , 24 hour s  p r ior t o

BEF ORE a llowing th e employees to ent er th e tunn el.

(4)           If th e work operat ions of an y occu pied tunn el pr oject s ar e discont inu ed for 30 consecut ive   days   or   longer,   THEN   th e   genera l   contra ctor   sha ll   notify    th e CONS TRUCTIO N SAFE TY DIVISION AT THE Michigan dep artm ent s of con sum er an d industr y services, an d h e a lth  24  hour s  befor e resum ing work  operat ions  on  th e tunn el pr oject .

 

R 408 .41462   Sa fe ty gene rally.

Rule 1462 . (1) ONCOMI NG SHIFTS SHALL BE IN FORMED OF ANY HAZARDOUS OCCURREN CES OR CONDITIO NS THAT HAVE AFFE CTED OR MIG HT AFFE CT EMPLOYEE SAFE TY, INCLUDING LIB ERATIO N OF GAS, EQUIP MEN T FAILUR ES, EARTH OR ROCK SLID ES, CAVE-INS , FLOODI NGS, FIRES, OR EXPLOSIO NS.

(2)   (1) A safe mean s of egress an d a ccess to all work ar eas sha ll be provided an d ma inta ined free of ha zar ds.

(3)   (2) Form scra p mat erial, lum ber that ha s protru ding na ils, an d all oth er debris sha ll be kept clear ed from th e work ar eas, passageways, sta irs, locks , an d chan ge houses.

(4)   (3) Combustible debris sha ll be removed daily dur ing th e cour se of con stru ct ion.

(5)     (4) When a hau lage roadbed con sists of tra ck an d wood ties, a walkway sha ll be provided. The walkway sha ll be a minimum of 2 2-inch plank s, side by side, abutt ed, joined, an d secur ed to a tie or oth er equivalent mean s. If space is not adequat e for 2 2-inch by 10- inch plank s, THEN th e walkway sha ll be as wide as space perm it s.

(6)    (5) When work is not being per form ed, a ccess to an  un dergroun d  opening sha ll be cover ed, bulkh eaded, fenced off, or restr icted by gat es or door s an d appropriat ely posted.

(7)   (6) Any section of tunn el that is not in use sha ll be barr icaded to prevent ingress by an unauth orized employee.

(8)    (7) Constru ct ion of a tr ench, manh ole, or oth er opening for use in a  tunn el or  sha ft operat ion sha ll be as prescribed in R 408 .40901 ET SEQ., th e con stru ct ion safety stan dar ds comm iss ion s tan d ar ds part 9 ‘Excavat ion, Trenching, an d Shoring’ an d R 408 .44501 ET SEQ.,  CONSTRUCTIO N  SAFE TY  STANDARD  part  45   ‘Fa ll  Pr otection.’   bei n g  R 408 .40901  e t  seq . an d R 408 .44501  e t seq ., r espe ct ively, of th e Mich igan  Ad m in is trat ive C ode .

(9)   (8) The power sour ce to a tunn eling ma chine sha ll be disconn ected or lock ed out when an employee is work ing in th e ar ea of th e cutt ing head or per form ing ma int enan ce work on th e tunn eling ma chine where motion could cau se an injur y.

(10)   (9) An ar ea subject to subside nce that is ha zar dous to an employee sha ll be fenced an d appropriat ely posted.

(11)     (10 ) Ea ch operat ion sha ll ha ve a check-in an d check -out system that will  provide positive ident ificat ion of an employee by num ber or nam e an d will ident ify th e locat ion of each employee who is un dergroun d. An a ccurat e recor d sha ll be kept on th e sur face. However, a check-in  an d  check-out  system  is  not  required  when  th e  con stru ct ion  of un dergroun d facilities that  ar e des igned for human  occu pan cy ha s been com pleted so that

 

 

th e perman ent environm enta l contr ols ar e effect ive an d th e rema ining con stru ct ion activity will not cau se an y environm enta l ha zar d or stru ctura l fa ilur e with in th e facilities.

(12)   (11 ) A ladde r or sta irway that is provided in a sha ft , caisson, or steep incline sha ll be as prescribed   in   R  408 .41101   ET  SEQ.,  th e  con stru ct ion   safety  stan dar ds   comm iss ion s tan d ar ds part 11 ‘FIXED AND PORTABLE Ladde r s’ an d R 408 .42101 ET SEQ., CONSTRUCTIO N SAFE TY STANDARD part 21 ‘Guar ding of Walking an d Work ing Areas.’ bei n g R 408 .41101 e t seq . an d R 408 .42101  e t seq ., r espe ct ively, of th e Mich igan Ad m in is trat ive C ode .       (13) (12 )  Ea ch AN employer sha ll esta blish an d coor dinat e with th e employees an a ccide nt prevent ion program an d a safety tra ining program as prescribed in R 408 .40101 ET SEQ., th e con stru ct ion safety s tan d ar ds comm iss ion stan dar d part 1 ‘Genera l Rules.’ bei n g R 408 .40101 e t seq . of th e Mich igan Ad m in is trat ive C ode .

(14)   (13 ) All employees sha ll be instru cted in th e recogn it ion an d avoidan ce of ha zar ds that ar e ass ociat ed with all of th e followin g un dergroun d con stru ct ion activities:

(a)     Air monitoring.

(b)     Vent ilat ion.

(c)     Illum inat ion.

(d)    Commun icat ions.

(e)     Flood contr ol.

(f)      Mechan ical equipment .

(g)     Persona l protective equipment . (h) Explosives.

(i)     Fire prevent ion an d protection.

(j)     Em ergency pr oced ur es, including evacuat ion plan s an d check-in an d check -out systems.

(15)   (14 ) Ea ch employee sha ll be issued a copy of th e pr oject 's genera l safety ru les befor e an employee comm ences work at th e pr oject .

(16)     (15 ) Ea ch employer sha ll des ignat e a qua lified employee who is resp onsible for administering th e  safety  program .  A writt en  recor d  sha ll  be  ma inta ined  of th e  safety tra ining program .

(17)    (16 ) Before an employee ent ers a tunn el where th e atm osphere might be ha zar dous due to a con dition such  as  a  deficiency  of  oxygen,  or  might  be  toxic  in  excess  of  th e ma ximum a llowable limits, th e tunn el sha ll be tested an d th e results sha ll be recor ded AS PRESCRIB ED IN R 325 .62991 ET SEQ., OCCUP ATIO NAL HE ALTH STANDARD PART 665 ‘UN DERGRO UN D CONSTRUCTIO N, CAISSONS , COFFE RDAMS, AND COMPRESSED AIR.’ The records sha ll be ma inta ined at th e jobsite. If th e atm osphere is ha zar dous, eith er su fficient vent ilat ion to eliminat e th e  ha zar d  sha ll  be  provided  or respi rat ory equipment as prescribed by th e dep artm ent of con sum er an d industr y services sha ll be worn .

(18)   (17 ) If an atm osphere is foun d to be explosive, THEN spark s, flam e, an d oth er sour ces of ignition sha ll be prohibited an d vent ilat ion sha ll be provided unt il th e ha zar d ha s been reduced an d ma inta ined at or below th e ma ximum  allowable limits as prescribed by th e dep artm ent of con sum er an d industr y services.

(19)       AN OCCUPIE D AUGER OR PIPE J ACKI NG TUNNE L SHALL BE MONI TORED FOR AIR QUALIT Y  IMMEDIATELY  BEF ORE EN TERING THE TUNNE L AND DURING THE PE RIOD OF OCCUP ANCY IN THE TUNNE L.

 

 

R 408 .41463   Eme rgency  provisions ; plans ; equip men t; rescue  cre w s .

Rule 1463 .  (1)  A plan to evacuat e a tunn el in an emergency an d th e procedur es to carr y out th e plan sha ll be developed an d ma de kn own to th e employees an d to th e rescue team .

(2)     An employer sha ll ensur e that  rescue team s ar e fam iliar with con ditions at th e jobsite.

(3)      On jobsites where 25 or more employees work un dergroun d at one t ime, an employer sha ll provide, or mak e arran gement s in advan ce with loca lly available rescue services to provide, not less than 2 5-person rescue team s. One of th e team s sha ll be on th e jobsite or with in 1/2 hour of tra vel t ime from th e entr y point an d th e oth er team sha ll be with in 2 hour s of tra vel t ime from th e entr y point .

(4)      On jobsites where less than 25 employees work un dergroun d at one t ime, an employer sha ll provide, or mak e arran gement s in advan ce with loca lly available rescue services to provide, at least 1 5-person rescue team . The team sha ll eith er  be on  th e  jobsite or  be with in 1/2 hour of tra vel t ime from th e entr y point .

(5)        On jobsites where  flamma ble  or  noxious  gases  ar e  en count ered  or  ant icipat ed  in ha zar dous quant it ies, rescue team  members  sha ll  pra ct ice  donn ing  an d  using  self- conta ined breath ing apparatu s month ly.

(6)     An emergency hoisting facility, such as a mu d box or a cran e, sha ll be readily available at a sha ft that is used as a mean s of egress , un less a hoisting mean s is provided that is indepe ndent of an electr ical power fa ilur e.  THE  HOISTI NG  MEANS  SHALL  BE DESIGN ED SO THAT THE LOAD HOIST DRUM IS POWERED IN BOTH DIR ECTIO NS OF ROTATIO N  AND SO  THAT THE  BRAKE  IS  AUTOMATIC ALLY APP LIED UP ON P OWE R RE LE ASE OR F AILUR E .

(7) A se lf-conta in ed b r e ath in g a pp aratu s , a s p r es cr ibe d in s u bp art s A t o H of 30 C .F .R . p art s 0 -199 , m in e ra l r es our ces , 1988 edi t ion , s ha ll conta in , at a m in imum , a 5 -m inut e a ir  s u pp ly an d s ha ll be p r ovided  by th e e m p loye r , at  n o expe n se  t o th e e m p loyee, t o e a ch  e m p loyee an d k ep t r e a d ily a va ila ble in a ll un de r gr oun d ar e a s w h e r e an e m p loyee m ight be exp osed t o s m ok e or ga s ha zar ds .

(7)      (8) The provisions of  THE  CODE  OF  FE DERAL  REGULATIO NS ,  TITL E  30 , MINE RAL RESOURC ES, REVISED J ULY 1, 2000 : PART 1-199 , 30 C .F .R . p art s 0 -199 , Min e ra l Res our ces ,  1988  edi t ion ,  ar e  adopted  by  reference  in  th is  ru le.  an d  ma y  be in spe ct ed at th e L an s in g office of th e dep artm e nt of con s um e r an d in d u s tr y se r vices . The provisions ma y be pur cha sed at a cost at th e t ime of adoption of th ese ru les of $38 .00 $20 .00 from th e Un ited Stat es Governm ent Bookst ore, Patr ick V. McNamara Fede ra l Building, Suite     160 ,     477     Michigan      Avenu e,     Detr oit ,     Michigan      48226 ;     WEB-SIT E H TT P ://BOOKSTOR E .GP O.GO V; or FOR REVIEW AT THE MIOS HA STANDARDS DIVISION , fr om th e Michigan Dep artm ent of Consum er  an d  Industr y  Services,  7150 Harr is Drive, P.O. Box 30015 30643 , Lan sing, Michigan 48909 -8143 .

(8)   (9) Self-conta ined breath ing apparatu s sha ll be ma inta ined in good operat ing condition. Em ployees sha ll be tra ined in it s use.

(9)    (10 ) There sha ll be a rescue crew for each shift of all un dergroun d operat ions. The rescue crew sha ll be tra ined in rescue pr oced ur es, th e use an d limitat ions of a breath ing apparatu s, an d th e use of fire fight ing equipment . The crews sha ll be retra ined at least once each year . Loca l fire an d police personn el ma y be used as rescue team s for tunn el operat ions. If loca l personn el ar e to be used , THEN th e employer sha ll arran ge for such assistan ce befor e th e start  of th e pr oject .

 

 

(10)   (11 ) The followin g minimum rescue equipment sha ll be provided at th e top of th e sha ft : (a) Four un it s of 1/2-hour -rat ed, air-supplied respi rat ors.

(b)     Four additiona l un it s of 1/2-hour -rat ed air bott les.

(c)       Four bur eau of mines flashlight s or lant ern s with additiona l batt eries for each light . The flashlight s sha ll be as prescribed in part 20 of subcha pter B of THE PROVISIONS OF THE CODE OF FE DERAL REGULATIO NS , TITL E 30 , MINE RAL RESOURC ES, REVISED J ULY 1, 2000 : PART 1-199 , 30 C .F .R . p art s  0 -199 ,  m in e ra l  r es our ces , 1988 edi t ion , which is adopted by reference in subru le (7) (8) of th is ru le.

(d)    Two 2A-10BC fire extinguishers.

(e)     One str etcher, wire baske t type with slings atta ched.

(f)      One fire blank et.

(g)     One 10-ton han d hydrau lic rescue kit.

(h )  One first aid kit as prescribed by th e dep artm e nt of p u blic h e a lth . IN  R 408 .40101  ET SEQ., CONS TRUCTIO N SAFE TY STANDARD PART 1 ‘GENE RAL RULES.’

(11)   (12 ) At least 1 employee sha ll be on dut y above groun d when an employee is work ing un dergroun d. The primar y dut y of th e employee who is above groun d sha ll be to secur e imm ediat e aid for an employee who is un dergroun d in case of an emergency.

 

R 408 .41464   Communication    system ; location ; signa ls .

Rule 1464 .  (1)   In a  tunn el that  is more than  225 feet long, a commun icat ion system sha ll be provided at all of th e followin g locat ions:

(a)     The work ing face.

(b)     The top of th e sha ft .

(c)    The bott om of th e sha ft .

(d)    The hoisting stat ion, if provided .

(e)     Ea ch 1,000 feet of tunn el.

(f)       The  office, if provided .   A public telep hone  or  oth er  commun icat ion  system  sha ll be provided or available to each tunn el pr oject to secur e out side emergency help.

(g)       HOIST OPE RATORS SHALL BE PROVIDED WITH A CLOS ED-CIRC UI T VOIC E COMM UNI CATIO N SYSTEM TO EACH LANDING STATIO N. THE SYSTEM SHALL HAVE SPE AKER MICRO PH ONES LOCATED SO  THAT  THE  OPE RATOR  CAN COMM UNI CATE WITH INDI VIDU AL LANDING STATIO NS DURING HOIST USE .

(2)       An employer sha ll esta blish an d ma inta in direct commun icat ions for coor dinat ion of activities with oth er employers whose operat ions at th e jobsite a ffect or ma y a ffect  th e safety of employees who ar e un dergroun d.

(3)      If a tunn el is press ur ized, THEN  all of th e followin g additiona l locat ions sha ll also be provided with a commun icat ion system:

(a)     The work ing cham ber side of th e man lock near th e door .

(b)     The int erior of all locks .

(c)    The lock att endant 's stat ion.

(d)    The com press or plant .

(e)      The first aid stat ion. H oweve r , if a ga ss y con d it ion exis t s , a ll p h on es that ar e locat ed with in th e tunn el s ha ll con form t o th e Un it ed S tat es b ur e au of m in es s ch ed u le 9B , w h ich is a d op t ed in th is ru le by r e fe r e n ce an d w h ich ma y be in spe ct ed at th e L an s in g office of th e dep artm e nt  of  con s um e r  an d  in d u s tr y  se r vices .  T h is  s ch ed u le  ma y  be  p ur cha sed  a s

 

 

in d icat ed in R 408 .41463 (8 ). T h e t elep h on e or oth e r s igna l commun icat ion s ys t e m s s ha ll be in depe n de nt of th e tunn el p owe r s u pp ly an d s ha ll be in s ta lle d s o that th e u se or d is ru p t ion of an y on e p h on e or s igna l locat ion will n ot d is ru p t th e ope rat ion of th e s ys t e m fr om an y oth e r locat ion .

(4)           Commun icat ion systems sha ll be  tested  upon  initial  entr y  of  each  shift  to  th e un dergroun d, an d as oft en as necess ar y th ereafter, to ensur e that th ey ar e in  work ing order.

(5)     An employee who work s alone un dergroun d in a ha zar dous locat ion an d who is both out of th e ran ge of natura l una ssisted voice commun icat ion an d not un der obse rvat ion by oth er persons sha ll be provided with an effect ive mean s of obta ining assistan ce in an emergency.

(6)       For an occupied pipe jacking tunn el that is more than 225 feet long, th ere sha ll be a telep hone or oth er signa l commun icat ion system esta blished between th e work ing face, th e sha ft tunn el porta l, an d at least 1 locat ion on th e sur face.

(7)          When a hoist house is provided , th ere sha ll be  a  se con d  indepe ndent  meth od  of signa ling, eith er au dibly or visibly, to th e hoist engineer from all lan dings in th e sha ft or slope.

(8)       A signa l code for hoisting sha ll be posted prominent ly in th e engine house an d at a ll places where signa ls ar e given. The signa l code sha ll be as prescribed in ru le 2222 of th e R 408 .41001 ET SEQ., con stru ct ion safety s tan d ar ds comm iss ion stan dar d, part 10 ‘LIFTING AND DIGGI NG EQUIP MEN T,’  22  ‘S igna ls ,  S ign s ,  T a gs ,  an d  B arr ica des ,’  bei n g  R 408 .42222 of th e Mich igan Ad m in is trat ive C ode .

(9)        IF A GASSY CONDITIO N EXISTS , THEN ALL PH ONES THAT ARE LOCATED WITHIN THE TUNNE L SHALL CONF ORM TO THE UNI TED STATES BUREAU OF MINES SCHE DULE 9B, PART 23 OF THE PROVISIONS OF THE CODE OF FE DERAL REGULATIO NS , TITL E 30 , MINE RAL RESOURC ES, REVISED J ULY 1, 2000 ; PART 1- 99 , WHICH ARE ADOPTED BY REFE REN CE IN THIS RULE. THE PROVISIONS MAY BE PU RCHASED AS INDIC ATED IN R 408 .41463 (7). THE TELEPH ONE OR OTHE R SIGN AL COMM UNI CATIO N SYSTEMS SHALL BE IND EPEN DEN T OF THE TUNNE L POWER SU PP LY AND SHALL BE INST ALLED SO THAT THE USE OR DISR UP TIO N OF  ANY  ONE   PH ONE   OR   SIGN AL   LOCATIO N   WILL   NOT   DISR UP T   THE OPE RATIO N OF THE SYSTEM FROM ANY OTHE R LOCATIO N.

 

R 408 .41465   P rotective   clothing  or e qu ip men t.

Rule 1465 . (1) Pr otective cloth ing or equipment sha ll be required to be used as prescribed  in  R  408 .40601  ET  SEQ.,  th e  con stru ct ion  safety  s tan d ar ds  comm iss ion stan dar d, part 6 ‘Persona l Pr otective Equipment .’ bei n g  R  408 .40601  e t  seq .  of  th e Mich igan Ad m in is trat ive C ode .

(2)       An employee work ing in a wet sha ft , tunn el, or caisson sha ll wear  safety toe ru bber boot s with WHICH HAVE flat grippe r -type soles AND WHICH ARE provided for by th e employer, at no expe nse to th e employee.

(3)       An employee work ing in a sha ft , tunn el, or caisson sha ll wear  a protective helmet,  a p r ot e ct ive h elm e t r eq u ir ed by s u b ru le (3 ) of th is ru le WHICH sha ll be provided for an d as prescribed  in  R  408 .40601  ET  SEQ.,  th e  con stru ct ion  safety  s tan d ar ds  comm iss ion stan dar d, Part 6 ‘Persona l Pr otective Equipment .’  bei n g  R  408 .40601  e t  seq .  of  th e Mich igan Ad m in is trat ive C ode .

 

 

 

R 408 .41466   Elec trical  requiremen ts .

Rule 1466 .  (1)    A power  line  sha ll  be  well  sep arat ed  or  insulat ed  from  wat er  lines, telep hone lines, an d air lines.

(2)      Light ing circuits sha ll be locat ed so that th e movement of personn el or equipment will not dama ge th e circuits or disru pt service.

(3)      Electr ical equipment an d wiring sha ll be insta lled an d ma inta ined as prescribed in th e provisions of  subpart s  F  to  J  of  part  77  of  THE  PROVISIONS  OF  THE  CODE  OF FE DERAL REGULATIO NS , TITL E 30 , MINE RAL RESOURC ES, REVISED J ULY 1, 2000 : PART 1-199 , 30 C .F .R . p art s 0 -199 , m in e ra l r es our ces , 1988 edi t ion , which ar e adopted  in  th is  ru le  by   reference  IN  THIS   RULE.   THE   PROVISIONS   MAY  BE PU RCHASED AS INDIC ATED IN  R 408 .41463 (7).   an d w h ich  ma y be in spe ct ed at  th e L an s in g office of th e dep artm e nt of con s um e r an d in d u s tr y se r vices . T h e p r ovis ion s ma y be p ur cha sed at a cos t a s of th e t im e of a d op t ion of th ese ru le s of $20 .00 fr om th e Un it ed S tat es G ove rnm e nt B ookst or e , Patr ick V. M cNamara F ede ra l B u ild in g, S u it e 160 , 477 Mich igan Ave nu e ,  De tr oit ,  Mich igan  48226 ,  or  fr om  th e  Mich igan  Dep artm e nt  of C on s um e r  an d I n d u s tr y Se r vices , 7150 Harr is D r ive, B ox 30015 , L an s in g, Mich igan 48909 . The provisions of subpart s F to J ar e adopted by reference with th e followin g am endment s:

(a)      Art icle 305 -1(a) is am ended to read as follows : Temporar y electr ical power an d light ing insta llat ions sha ll be perm itt ed dur ing th e period of con stru ct ion, remodeling, ma int enan ce, repair, or demolition of buildings, stru ctur es, equipment , or similar activities which ar e locat ed at groun d level an d which ar e part of facilities used for th e con stru ct ion of tunn els, sha fts, an d coffer dam s.

(b)     Art icle 310 -15, is am ended to read as follows : The ma ximum cont inu ous am pacities for coppe r , alum inum , an d coppe r -cla d alum inum con ductors sha ll be as specified in ta ble 310 - 16 to 310 -19 an d accompan ying notes 1 to 12. Power an d light ing circuits ma y be loaded to th e ma ximum des ign temperatur es of th e  wire  or  cable  insulat ion  un der  th e  followin g con ditions:

(i)        A mean s sha ll be provided to disconn ect th e load if th e feede r cable exceeds des ign temperatur e by more than  10% for 1 minut e.

(ii)    Power cable sha ll ha ve  a  groun ding an d  a  pilot  wire that  con form s  to th e Insulat ed Power Cable En gineers Associat ion (IPCEA) type G groun ded cable (G-GC) or equivalent . (iii)Power cable sha ll ha ve a loose conn ector emergency shut down ability.

(iv)   Power cable sha ll ha ve a groun d fau lt emergency shut down ability.

(v)     Power cable sha ll ha ve an ar c between pha ses emergency shut down ability.

(c)     OIL FILLED TRANSF ORMERS SHALL NOT BE USE D UN DERGRO UN D UN LESS THE Y ARE LOCATED IN A FIRE-RESIST ANT EN CLOS URE SUIT ABLY VEN TED TO THE OUTSID E AND SURROUND ED BY A DIK E TO RETAIN  THE  CONTEN TS  OF THE TRANSF ORM ER IN THE EVEN T OF RUP TURE.

(4)     All electr ical power circuits that supply porta ble or han d-held t ools, light s, or equipment sha ll be protected by approved groun d-fau lt int erru pters as PRESCRIB ED p r ovided in R 408 .41701 ET SEQ., th e con stru ct ion safety s tan d ar ds comm iss ion stan dar d,  Part  17 ‘Electr ical Insta llat ions.’ bei n g R 408 .41701 e t seq . of th e Mich igan Ad m in is trat ive C ode .

 

 

(5)        The regular system of illum inat ion sha ll be supplement ed by light ing that can  be activat ed upon th e fa ilur e of th e regular system. Supplementa l light ing, such as approved flashlight s or lant ern s, sha ll be su fficient to allow all employees to evacuat e th e tunn el.

(6)     A tunn el excavat ing ma chine that is built an d des igned after 1977 sha ll conform to th e provisions of THE NATIO NAL FIRE PROTECTIO N ASSOCI ATIO N STANDARD NFP A 70 : STANDARD FOR ‘NATIO NAL ELECTRIC AL CODE,’ 1999 EDITIO N, AS ADOPTED BY REFE REN CE IN THIS RULE. THIS STANDARD IS AVAILABLE FROM GLOB AL EN GINEE RING  DOCUMEN TS,  15  IN VERNESS  WAY  EAST,   EN GLEWOOD, COLOR ADO  80112 ;  TELEPH ONE   NU MBER   1-800 -854 -7179 ;   WEB-SIT E WWW.GLOB AL .I H S .COM; AT A COST AS OF THE TIM E OF ADOPTIO N OF THE SE AMEN DATORY   RULES   OF   $98 .00   OR   FOR   REVIEW   AT    THE    MIC HIGAN DEP ARTMEN T OF CONSU MER AND INDUSTR Y SERVICES, MIOS HA STANDARDS DIVISION , 7150 HARRIS DRI VE, P.O. BOX 30643 , LANSIN G, MIC HIGAN 48909 -8143 . be in com p lian ce with th e p r ovis ion art icle 501 , cla ss I , d ivi s ion 2 , of th e nat iona l ele ctr ica l code 70 -1978 , w h ich ar e a d op t ed by r e fe r e n ce in th is ru le an d w h ich ma y be in spe ct ed at th e L an s in g office of th e dep artm e nt of con s um e r an d in d u s tr y se r vices . T h e code ma y be  p ur cha sed at a cos t a s of th e t im e of a d op t ion of th ese ru le s of $6 .25 fr om th e Nat iona l F ir e Pr ot e ct ion Ass ociat ion , 470 At lant ic Ave nu e , B os t on , M a ss a chu se tt s 02210 , or fr om th e Mich igan Dep artm e nt of C on s um e r an d I n d u s tr y Se r vices , 7150 Harr is D r ive, B ox 30015 , L an s in g, Mich igan 48909 .

(7)       A tunn el excavat ing ma chine that is des igned an d built after 1977 sha ll be equipped with a limit switch to prevent th e a ccide nta l rotat ion of th e ma in stru ctur e of th e ma chine.

(8)             ELECTRIC AL INST ALLATIO N IN UN DERGRO UN D AREAS WHE RE OIL , GREASE, OR DIESEL FUE L ARE STOR ED SHALL BE USE D ONLY FOR LIG HTING FIXTURES.

(9)     LIG HTING FIXTURES IN STOR AGE AREAS, OR WITHIN 25 FEE T (7.62 METERS) OF  UN DERGRO UN D  AREAS  WHE RE  OIL ,  GREASE,  OR  DIESEL  FUE L  ARE STOR ED, SHALL BE APP ROVED FOR CLASS I, DIVISION 2 LOCATIO NS , AS PRESCRIB ED IN R 408 .41701 ET SEQ., CONS TRUCTIO N SAFE TY STANDARD PART 17 ‘ELECTRIC AL INST ALLATIO N.’

 

R 408 .41467   Fi re preven tio n and  protection .

Rule 1467 .  (1)   The  applicable  requirement s  for  fire  prevent ion  an d  protection  AS P RE SCRIB E D spe cifie d in R 408 .41801 ET SEQ., th e con stru ct ion  safety  s tan d ar ds comm iss ion stan dar d Part 18 ‘Fire Pr event ion an d Pr otection.’ bei n g R 408 .41801 e t seq . of th e Mich igan Ad m in is trat ive C ode , sha ll be com plied with  in  all  tunn el  an d  sha ft operat ions.

(2) Smoking an d open  flam es  s ha ll  be  ARE  prohibited.  AN  EMPLOYER  IS RESPONSI BLE FOR COLL ECTI NG ALL PE RSO NAL SOURC ES OF IGNITION , SUC H AS MATCHE S AND LIG HTERS, FROM ALL PE RSO NS. Welding an d cutt ing, where required, sha ll be in com plian ce with th e provisions of subru les (9), (10), (11), an d (12), AND

(13 ) of th is ru le. A FIRE WATCH  SHALL  BE  MAINT AIN ED WHEN  HOT  WORK  IS PE RFORMED.

(3)     Not more than a 1-day supply of diesel fuel sha ll be stored in a tunn el or sha ft . Gasoline or  liquefied  petr oleum  gas  sha ll  not  be  tak en  in  a  tunn el  or  sha ft .   ACETYLENE  OR

 

 

METHYLACETYLENE    PROPADIENE    STABILI ZED     GAS     MAY     BE     USE D UN DERGRO UN D SOLELY FOR WELDI NG, CUTTI NG, AND OTHE R HOT WORK AND ONLY AS PRESCRIB ED IN R 408 .40701 ET SEQ., CONS TRUCTIO N SAFE TY STANDARD PART 7 ‘WELDI NG AND CUTTI NG.’

(4)     The piping of diesel fuel from th e sur face to an un dergroun d locat ion is perm itt ed only if all of th e followin g provisions ar e com plied with :

(a)       Diesel fuel is conta ined at th e sur face in a tank with a ma ximum capacity that is not more than th e am ount of fuel required to supply, for a 24-hour period, th e equipment w h ich THAT is serviced by th e un dergroun d fueling stat ion.

(b)      The sur face tank is conn ected to th e un dergroun d fueling stat ion of an a ccep ta ble pipe or hose system that is contr olled at th e sur face by a valve an d at th e sha ft bott om by a hose nozzle.

(c)       The pipe is empty at all t imes, except when tran sferr ing diesel fuel from th e sur face tank  to a piece of equipment in use un dergroun d.

(d)     Hoisting operat ions in th e sha ft ar e suspe nded dur ing refueling operat ions if th e supply piping in th e sha ft is not protected from dama ge.

(e)     Acet ylene, liquefied petr oleum gas, an d meth ylacetylene propadiene sta bilized gas ma y be used un dergroun d only for weldi ng, cutt ing, an d oth er hot work an d only in a ccor dan ce with th e provisions of subru les (9), (10), (11), an d (12), AND (13) of th is ru le. NOT MORE THAN THE AMOUN T OF FUE L  GAS  AND  OXYGEN  CYLINDERS  NE CESSARY TO PE RFORM WELDI NG, CUTTI NG, OR OTHE R HOT WORK DURING THE NE XT 24- HOUR PE RIOD SHALL BE PE RMITT ED UN DERGRO UN D.

(f)        NOT MORE THAN THE AMOUN T  OF  FUE L  GAS  AND  OXYGEN  CYLINDERS NE CESSARY TO PE RFORM WELDI NG, CUTTI NG, OR OTHE R HOT WORK DURING THE NE XT 24-HOUR PE RIOD SHALL BE PE RMITT ED UN DERGRO UN D.

(5)     Leak s an d spills of flamma ble or com bustible fluids sha ll be clean ed up imm ediat ely.

(6)      Oil, grease, or DIESEL fuel that is stored in a tunn el or sha ft sha ll be kept in tight ly sealed conta iners in fire-resis tant ar eas at safe distan ces  from  explosives,  ma gazines, electr ical  insta llat ions,   an d   sha ft   stat ions.   ELECTRIC AL   INST ALLATIO NS   IN UN DERGRO UN D AREAS WHE RE OIL , GREASE, OR DIESEL FUE L ARE STOR ED SHALL BE USE D ONLY FOR LIG HTING  FIXTURES.  LIG HTING  FIXTURES  IN STOR AGE AREAS, OR WITHIN 25 FEE T (7.62 METERS) OF UN DERGRO UN D AREAS WHE RE OIL , GREASE, OR DIESEL FUE L ARE STOR ED, SHALL BE APP ROVED FOR CLASS I, DIVISION 2 LOCATIO NS.

(7)        Fire-resis tant hydrau lic fluids sha ll be used  in  hydrau lically actuat ed  un dergroun d ma chinery an d equipment . For th e pur pose of th is requirement , a fire-resis tant hydrau lic fluid s ha ll mean S an y liquid which ha s a flash point above 200 degrees Fahr enh eit an d which ha s a vapor press ur e of not more than  40 p.s.i. (absolut e) at 100 degrees Fahr enh eit .

(8)      An approved 2 A-10BC 4A:40B:C RATING fir e extinguisher or equivalent  protection sha ll be provided at th e drive pulley of an un dergroun d conveyor an d at 300 -foot int ervals along th e belt. A minimum of 2 2A-10BC approved fire extinguishers sha ll be provided at th e tunn eling ma chine.

(9)         A press ur ized tunn el in which com bustible mat erials ar e stored or used sha ll be equipped with a 2-inch minimum diam eter wat er line with an out let that is conn ected to a 1 1/2-inch nomina l diam eter fire hose which is capable of reaching th e com bustible mat erials.

 

 

The wat er supply sha ll be of su fficient volum e an d press ur e to efficient ly operat e th e type of nozzle used on th e fire hose for a minimum of 1 minut e. Fire extinguishers  ma y  be substitut ed for th e wat er an d fire hose if th ey meet th e requirement s for th e wat er service.

(10)     ) ALL  OF  THE  FOLLOWI NG  ARE  ADDITIO NAL  REQUI REMEN TS  FOR  GASSY OPE RATIO NS:

(A)       ONLY ACCEP TABLE EQUIP MEN T, MAINT AIN ED IN SUIT ABLE CONDITIO N, SHALL BE USE D IN GASSY OPE RATIO NS.

(B)           MOBIL E DIESEL-POWERED EQUIP MEN T USE D IN GASSY OPE RATIO NS SHALL BE EITHE R APP ROVED AS PRESCRIB ED IN THE REQUI REMEN TS OF THE COD E OF FE DERAL REGULATIO NS , TITL E 30 , MINE RAL RESOURC ES, REVISED J ULY 1, 2000 , PART 36 , OR SHALL BE DEMONS TRATED BY THE EMPLOYER TO BE FU LLY EQUI VALEN T TO THE MINE SAFE TY AND  HE ALTH  ADMI NIS TRATIO N APP ROVED EQUIP MEN T AND SHALL BE OPE RATED IN ACCORD ANCE WITH THAT PART. THE CODE OF FE DERAL REGULATIO NS , TITL E 30 , MINE RAL RESOURC ES,   REVISED   J ULY   1,   2000 :   PARTS   1-199 ,   ARE   ADOPTED   BY REFE REN CE  IN  THIS  RULE.  THE  PROVISIONS  MAY  BE   PU RCHASED   AS INDIC ATED IN R 408 .41463 (7).

(C)           EACH EN TRANCE TO A GASSY OPE RATIO N SHALL  BE  PROMI NEN TLY POST ED   WITH   SIGNS   NOTI FYING   ALL    EN TRANTS    OF    THE    GASSY CLASSI FICATIO N.

(11)    (10 ) A minimum of 1 approved 2A-10BC fire extinguisher sha ll be provided for each electr ical, diesel, or hydrau lic powered ma chine used in a tunn el or sha ft .

(12)   (11 ) A non com bustible barr ier sha ll be insta lled below weldi ng or burn ing operat ions.

(13)   (12 ) In an un dergroun d operat ion, local gas checks sha ll be ma de before an d dur ing a weldi ng or cutt ing operat ion an d dur ing  a  drilling  operat ion  that  would  penetrat e  th e tunn el.

(14)   (13 ) If more than .25% of methan e by volum e or 5% of th e LEL, lower explosive limit, of a flamma ble gas or petr oleum vapor is detected, THEN th e weldi ng, cutt ing, heat ing, or drilling operat ion sha ll cease unt il th e ha zar d ha s been eliminat ed.

(15)   (14 ) A fire wat ch sha ll be ma inta ined ar oun d weldi ng an d cutt ing operat ions unt il a ll possibili ty of fire is eliminat ed. The fire wat ch sha ll be provided with a minimum of 1 approved 2A-10BC fire extinguisher.

(16)    (15 ) Flamma ble mat erials or supplies, oth er than th ose used dur ing 1 shift, sha ll not be stored with in 20 100 feet (30.48 METERS) of an y tunn el or sha ft opening. IF THIS IS NOT FE ASIBL E BECAUSE OF SPACE  LIMIT ATIO NS  ON  THE  J OBSIT E,  THEN SUC H MATERIALS MAY BE LOCATED WITHIN THE 100 FOOT LIMIT , IF BOTH OF THE FOLLOWI NG PROVISIONS  ARE COMPLIED WITH:

(A)          THE MATERIALS ARE LOCATED AS FAR AS PRACTIC ABLE FROM THE OPEN ING .

(B)         A FIRE RESIST ANT BARRI ER OF NOT LESS THAN A 1-HOUR RATING IS PLACED  BETWEEN  THE  STOR ED  MATERIAL   AND   THE   OPEN ING  OR ADDITIO NAL PRECAUTIO NS ARE  TAKEN  THAT  WILL  PROT ECT  THE MATERIALS FROM IGNITION  SOURC ES.

(17)   (16 ) A head fram e sha ll be con stru cted of steel or oth er fire resis tant mat erial. A hoist house  an d  oth er  temporar y  sur face  building  or  stru ctur es  with in  100  feet  of th e  sha ft ,

 

 

caisson, or tunn el opening sha ll be built of fire-resis tant mat erials THAT HAVE A FIRE RESIST ANCE RATING OF NOT LESS THAN 1 HOUR.

 

TUNNE LS AND SH AFTS

 

R 408 .41471   Ground  suppo rt ; inspec tio ns ; repa irs .

Rule 1471 . (1) A qua lified employee sha ll inspect th e r oof, face, an d walls of porta ls, work  ar eas, an d hau lage ways, or  tra velw ays  at  th e  start   of each  shift  an d  frequent ly th ereafter as needed . Wh e r e IF loose soil or r ock or fra ctur ed mat erial is  en count ered, THEN it  sha ll be scaled or protected an d support ed. THE EMPLOYEE CONDUCTI NG THE INS PE CTIO NS  SHALL  BE  PROTECTED  FROM  LOOS E  GROUN D  BY LOCATIO N, GROUN D SU PP ORT, OR EQUIVALEN T MEANS.  SUIT ABLE PROTECTIO N SHALL BE PROVIDED FOR EMPLOYEE S EXPOSED TO THE HAZARD OF   LOOS E   GROUN D   WHILE   INST ALLI NG    GROUN D    SU PP ORT    SYSTEMS. SU PP ORT   SETS   SHALL   BE    INST ALLED   SO    THAT   THE    BOTTOMS    HAVE SU FF ICI EN T  ANCHORAGE  TO  PREVEN T  GROUN D  PRESSUR ES  FROM DISLODGI NG THE SU PP ORT BASE OF THE SETS. LATERAL BRACING (COLL AR BRACING, TIE RODS , OR SPREADERS) SHALL BE PROVIDED BETWEEN IMMEDIATELY ADJ ACEN T SETS TO EN SUR E ADDED STABILIT Y. DAMAGED OR DISLODG ED GROUN D SU PP ORTS THAT CREATE A HAZARDOUS CONDITIO N SHALL    BE    PROM PTLY    REP AIRED    OR    REP LACED.     WHEN    REP LACING SU PP ORTS , THE NE W SU PP ORTS SHALL BE INST ALLED BEF ORE THE DAMAGED SU PP ORTS  ARE REMOVED. A SHIELD OR OTHE R TYPE OF SU PP ORT SHALL BE USE D TO MAINT AIN A SAFE TRAVEL WAY FOR EMPLOYEE S WORK ING IN DEAD- EN D AREAS AHE AD OF ANY SU PP ORT REP LACEMEN T OPE RATIO N.

(2)      A scaling bar sha ll be in good condition. A blunt ed or severely worn bar sha ll not be used.

(3)       A torque meter an d a torque wrench sha ll be available where r ock bolts ar e used for groun d support . Fr equent tests sha ll be ma de to determ ine if th e bolts ar e tight . The test frequency sha ll be determ ined by r ock con ditions an d distan ce from vibrat ion sour ces.

(4)      A dama ged or dislodged tunn el support sha ll be repaired or replaced when stru ctura l int egrity is impaired. A new support sha ll be insta lled w h e n eve r IF possible befor e removing dama ged support s.

(5)     Tunn el support s sha ll be des igned an d insta lled to prevent press ur e from pushing th em inwar d int o th e excavat ion.

(6)       Roof support s sha ll be used where groun d con ditions ar e such that th ere cou ld be a groun d fa ilur e ah ead of tunn el sets.

(7)        A tunn el that is to be occu pied by employees  sha ll be  provided  with  a  steel  casing, con crete pipe, t imber, or oth er mat erial of required str ength to support th e surr oun ding earth .

(8)        If an employee is required to ent er a tunn el less than 3 feet in diam eter, THEN  a lifeline for instant rescue sha ll be secur ely fastened to his OR HE R ank les.  Anoth er employee sha ll be stat ioned at th e tunn el  entran ce to operat e  th e lifeline.  In  addition, vent ilat ion sha ll be provided with an air line.

 

 

R 408 .41472   Sha fts ; suppo rt s ; inspec tio ns ; lif e li nes .

Rule 1472 . (1) A sha ft that an employee is required to ent er sha ll be provided with steel casing, con crete pipe, t imber, or  oth er  mat erial  that  is  str ong  enough  to  support  th e surr oun ding earth .

(2)      For rescue operat ions, a lifeline sha ll be secur ely fastened to a safety harn ess on each employee who ent ers a sha ft that is less than 4 feet in diam eter. The lifeline an d safety harn ess sha ll be provided as prescribed in R 408 .44501 ET  SEQ.,  CONSTRUCTIO N SAFE TY STANDARD Part 45 ‘Fa ll Pr otection.’ bei n g R 408 .44501 e t seq . of th e Mich igan Ad m in is trat ive C ode .

(3)       ) A sha ft that  is more than  5 feet in dep th  sha ll be bra ced to support  th e surr oun ding earth . The bra cing sha ll be provided th e full dep th of th e sha ft , or, if r ock is en count ered, to not less than 5 feet int o solid r ock , an d sha ll extend not less than 1 foot above th e  groun d level.

(4)      Aft er a blasting operat ion, th e bra cing sha ll be inspe cted. If th e bra cing is foun d to be un safe, THEN corr ections sha ll be ma de befor e th e shift operat ions ar e cont inu ed.

(5)         A sha ft or caisson sha ll be  protected  with  a  guar dra il  system  as  prescribed  in  R 408 .44501 ET SEQ., con stru ct ion safety stan dar d Part 45 ‘Fa ll Pr otection,’ or barr icaded as prescribed in R 408 .42201 ET SEQ., CONSTRUCTIO N SAFE TY STANDARD Part 22 ‘Signa ls, Signs, Tags, an d Barr icades .’ bei n g R 408 .44501 e t seq . an d R 408 .42201 e t seq ., r espe ct ively, of th e Mich igan Ad m in is trat ive C ode . A gat e opening int o th e sha ft sha ll be provided an d sha ll be closed at all t imes, except when necess ar y to ent er or leave th e sha ft or caisson.

 

R 408 .41474   Blasting .

Rule   1474 .     (1)      All   blasting   an d   explosives   han dling   sha ll   be   conducted   AS P RE SCRIB E D in com p lian ce with th e R 408 .42701 ET SEQ., con stru ct ion safety s tan d ar ds comm iss ion stan dar d Part 27 ‘Blasting an d Use of Explosives.’ bei n g R 408 .42701 of th e Mich igan Ad m in is trat ive C ode .

(2)       AN EMPLOYER SHALL NOT ALLOW an employee s ha ll n ot be a llowed to ent er a sha ft or a tunn el heading after blasting unt il air qua lity meets minimum requirement s.

(3)         BLASTING WIRE SHALL BE KEP T CLEAR OF ELECTRIC AL LINES , P IPE S, RAILS , AND OTHE R CONDUCTI VE MATERIAL, EXCLUDING EARTH, TO PREVEN T EXPLOSI VES INITI ATIO N OR EMPLOYEE EXPOSURE TO ELECTRIC CURREN T.

(4)      AFTER BLASTING OPE RATIO NS IN SHAFTS, A COMPE TEN T PE RSO N SHALL DETERMI NE IF THE WALLS , LADDERS, TIMB ERS, BLOCKI NG, OR WEDGES HAVE LOOS ENE D. IF SO, NE CESSARY REP AIRS SHALL BE MADE BEF ORE EMPLOYEE S OTHE R THAN THOSE ASSIGN ED TO MAKE THE REP AIRS ARE ALLOW ED IN OR BELOW THE AFFE CTED AREAS.

 

R 408 .41475   Ha u lage ; inspec tio n; braki ng ; ri ding .

Rule 1475 .  (1)  Hau lage equipment that  is to be used dur ing a shift sha ll be inspe cted by a qua lified employee befor e th e start of th e shift. Known defects that a ffect th e safety of employees sha ll be corr ected befor e th e equipment is used.

 

 

(2)      The roadbed , ra ils, joint s, switches, frogs, an d oth er element s of th e tra ck of a hau lage road sha ll be con stru cted, insta lled, an d ma inta ined in a mann er that is con sistent with th e speed an d type of th e hau lage operat ions to be con ducted.

(3)      A tra ck switch sha ll be provided with a lock ing or spring-loaded thr own bridle bar an d guar dra il. The switch thr ow, where possible, sha ll be placed on th e clearan ce side, an d th e switch thr ow sha ll operat e para llel to th e hau lage road.

(4)     A powered locom otive or oth er mobile equipment sha ll be provided with suita ble brak es, an au dible warn ing device for use by th e operat or as needed , an d light s at both ends.

(5)          Powered mobile hau lage equipment that is subject to fa lling mat erials sha ll be equipped with a cab, can opy, or oth er protective device that is capable of protecting th e operat or from shifting or fa lling mat erials. FOR CABS WHE RE GLAZING IS USE D, THE GLASS SHALL BE  SAFE TY  GLASS,  OR  ITS  EQUI VALEN T,  AND  SHALL  BE MAINT AIN ED AND CLEANE D SO THAT VISION IS NOT OBSTR UCTED.

(6)        Powered mobile equipment sha ll not be left unatt ended un less th e power  is  off, all operat ing contr ols ar e in th e neutra l position, an d th e brak es ar e set or oth er equivalent precaut ions ar e tak en  to  prevent  rolling.  The  operat ing  contr ols  sha ll  be  des igned  to aut omat ically return  to a neutra l position or SHALL be equipped with a deadman contr ol.

(7)     A tr olley wire sha ll be protected from conta ct by WITH employees. En ergized ra ils sha ll not be used , except when used as a groun d return for a tr olley wire.  IF RAILS SERVE AS A RETURN FOR A TROLL EY CIRC UI T, THEN BOT H RAILS SHALL BE BONDED AT EVERY J OINT AND CROSS BONDED EVERY 200 FEE T (60 .96 METERS).

(8)       Backst ops or aut omat ic brak ing sha ll be insta lled on an inclined con veyor to prevent th e conveyor from runn ing out of contr ol an d creat ing a ha zar d for th e employee.

(9)        An employee sha ll not r ide on an y of th e followin g un less spe cifically des igned or adapted for tran sport ing employees:

(a) A power-driven cha in, belt, or bucket con veyor. (b) A dipper. (c) A shovel bucket. (d) Fork s.  (e) A clam shell.  (f) The bed of a dum p tru ck.

(g) Hau lage equipment . AN EMPLOYEE SHALL NOT RID E HAULAGE EQUIP MEN T UN LESS IT IS EQUIPPE D WITH SEATING FOR EACH  PASSEN GER  AND PROTECTS PASSEN GERS FROM BEING STRUCK , CRUSHE D, OR CAUGHT BETWEEN OTHE R EQUIP MEN T OR SUR FACES.

(10)      )  AN  EMPLOYER  SHALL  NOT  USE  AN  EN DLESS  BELT-TYPE  MAN  LIFT  IN UN DERGRO UN D CONSTRUCTIO N.

(10) ) (11) Car s that ar e dum ped by han d sha ll be provided with tie-down cha ins or dum per blocks to prevent th e car s from overturn ing.

(11) ) (12) A r ock er bott om or bott om-dum p car sha ll be equipped with positive-lockin g devices.

(12) ) (13) Equipment that is to be hau led sha ll be loaded or protected so as to prevent sliding or spillage.

(13) ) (14) Park ed ra il hau lage equipment sha ll be ch ock ed or cha ined if subject to a ccide nta l movement .

(14) ) (15) Berm s, bum per blocks , safety h ooks , or similar mean s sha ll be provided to prevent overtra vel or overturn ing at dum ping locat ions an d, where necess ar y, at tra ck dead ends. (15 ) (16)  Supplies, mat erials, an d t ools, oth er than  sma ll han d t ools sha ll not be tran sport ed with employees in th e sam e car an d sha ll not be tran sport ed on top of a locom otive.

 

 

(16) ) (17) A refuge stat ion sha ll be provided not more than every 300 feet where a clearan ce of 2 feet from moving equipment cann ot be provided for employees un less th e employees ar e prohibited from walking th e hau lage rout e dur ing movement of a hau lage tra in along th e rout e.

(17) ) (18) A tra in that is used on an incline which would cau se th e car s to run out of contr ol sha ll, in addition to cou plings, ha ve safety cha ins, or th e equivalent , to conn ect th e car s an d th e  power  hau lage  equipment  in  a  tra in .  THE  SAFE TY  CHAINS  OR   OTHE R CONNE CTIO NS SHALL BE CAPABLE OF MAINT AINING CONNE CTIO N BETWEEN CARS IN THE EVEN T OF EITHE R COUP LER DISCO NNE CT, FAILUR E, OR BREAKAGE.

(18) ) (19) When an employee is being tran sport ed in a tra in, th e operat or sha ll ha ve clear vision beyond th e for war d end of th e tra in for safe operat ion.

(19) ) (20) Mobile equipment , including ra il-mount ed equipment , sha ll be stopped for manua l conn ecting or service work .

(20) ) (21)  Em ployees sha ll not reach between moving car s dur ing cou pling operat ions.

(21) ) (22) Couplings sha ll not be aligned, shifted, or clean ed when car s or locom otives ar e moving.

(23) WHE RE SWITC HING FACILITI ES ARE AVAILABLE, OCC UPIE D PE RSO NNE L CARS SHALL BE PU LLED, NOT PU SHE D. IF OCCUPIE D PE RSO NNE L CARS MUS T BE PU SHE D AND THE VISIBILIT Y OF THE TRACK IS HAMPE RED, THEN A QUALIFIED PE RSO N SHALL BE STATIO NE D IN THE LEAD CAR TO GIVE SIGN ALS TO THE LOCOMOTI VE OPE RATOR.

 

R 408 .41476   Stationa ry ho ists  gene rally.

Rule 1476 .  (1) Up on in s ta llat ion , an d wee k ly th e r e a ft e r , e a ch s tat ionar y h ois t a sse m bly s ha ll be ch e ck ed t o a ss ur e that a ll of th e com p on e nt s ar e ope rat in g p r ope r ly an d ar e in good con d it ion . A tr ia l run of th e ca ge or sk ip s ha ll be ma de w h e n it ha s bee n out of se r vice for 1 com p le t e s h ift or lon ge r . TO  EN SUR E  SUIT ABLE  OPE RATIO N  AND  SAFE CONDITIO N OF ALL FUN CTIO NS AND SAFE TY  DEVICES,  EACH  HOIST ASSEMBLY SHALL BE INS PE CTED AND LOAD-TESTED TO 100 % OF ITS RATED CAPACIT Y AT THE TIM E OF INST ALLATIO N, AFTER ANY REP AIRS OR ALTERATIO NS   AFFE CTI NG   ITS   STRUCTUR AL   INT EGRIT Y,    AFTER    THE OPE RATIO N  OF ANY SAFE TY DEVICE, AND ANNU ALLY WHEN IN USE . THE EMPLOYER SHALL PREP ARE A CERTI F ICATIO N RECORD THAT INCLUD E S ALL OF THE FOLLOWI NG IN FORMATIO N:

(A)    THE DATE EACH INS PE CTIO N AND LOAD-TEST WAS PE RFORMED.

(B)      THE SIGN ATURE OF THE PE RSO N WHO PE RFORMED THE INS PE CTIO N AND TE ST.

(C)         A SERIAL NU MBER OR OTHE R IDEN TIFIER FOR  THE  HOIST  THAT  WAS INS PE CTED AND TESTED.

THE MOST RECEN T CERTI FICATIO N RECORD SHALL BE MAINT AIN ED ON FILE UN TIL COMPLETIO N OF THE PROJ ECT.

(2)       A qua lified employee who sha ll be des ignat ed by th e employer, sha ll visua lly inspe ct th e stat ionar y hoist asse mbly, an chora ges, an d hoisting rope at th e beginn ing of each shift.

 

 

(3)     All un safe con ditions that ar e revealed by tests, checks, or inspections sha ll be corr ected befor e use of th e equipment .

(4)       An employee sha ll not be perm itt ed to r ide on a mat erial hoist, un less th e hoist is in com plian ce with th e requirement s of R 408 .41478 (1).

(5)     Befor e ma int enan ce, repairs, or oth er work is comm enced in th e sha ft that  is served by a hoist, th e hoist  operat or  sha ll be in form ed  of th e ma int enan ce, repairs, or  oth er  work . A notice sha ll be insta lled at th e top of th e sha ft an d at th e operat or contr ols an d sha ll stat e that  work is being done in th e sha ft .

(6)       Em ployees who ar e at th e bott om of an excavat ed sha ft sha ll be protected from th e movement of equipment , t ools, or mat erials overh ead or th e sha ft sha ll be vacat ed dur ing th e operat ions that  ma y be ha zar dous to persons below.

(7)         W h e n IF an employee is ra ised or lowered in  a  sha ft ,  THEN  all  oth er  hoisting operat ions in th e sha ft sha ll be stopped unt il th e employee ha s disembark ed at th e bott om or top of th e sha ft .

(8)      When a stat ionar y hoist is being used , th e drum -ope rat ing leve r sha ll be of a type that return s aut omat ically to th e "stop" position when th e operat or's han d is removed, un less, as a substitut e, th e thr ott le that contr ols th e drum speed aut omat ically stops th e drum an d slows th e engine to idling speed when th e thr ott le is released.

(9)       Only wire rope sha ll be used for hoisting an d it sha ll be properly secur ed at both th e drum an d cage or sk ip ends. When th e hoist is in use, not less than 2 full turn s sha ll rema in on th e con vent iona l drum hoist to protect th e end that fastens at th e drum  from  an overload.

(10)     Wire rope sha ll not be used when an y of th e followin g con ditions exist:

(a)      Six ran domly distr ibut ed broken wires in 1 rope lay, 3 broken wires in 1 stran d in 1 lay, or 1 valley break . A valley break is a wire break that  occur s between 2 adjacent stran ds.

(b)      Abra sion, scru bbing, flatt ening, peening, or an y severe chan ge that cau ses th e loss of more than  1/3 of th e origina l diam eter of th e out side wires in an y given ar ea.

(c)      Evidence of an y heat dama ge or an y dama ge that is cau sed by conta ct with electr ical wires or mark ed corr osion of th e rope.

(d)     Red uction from nomina l diam eter of more than 3/64 of an inch for diam eters up to an d including 3/4 of an inch, 1/16 of an inch for diam eters 7/8 to 1 1/8 inches, an d 3/32 of an inch for diam eters 1 1/4 to 1 1/2 inches.

(11)      A wire rope that is used for hoisting sha ll be cont inu ous an d sha ll not ha ve a kn ot or splice. The hoisting rope sha ll not be placed ar oun d th e load.

(12)       The conn ection between th e hoisting rope an d th e cage or sk ip sha ll be of a type to prevent th e cage from spinn ing.

(13)     All hoists sha ll be equipped with a lan ding level indicat or at th e operat or 's stat ion.

(14)     Limit switches sha ll be provided to eliminat e two block ing.

(15)         A WARNIN G LIG HT, SUIT ABLY LOCATED TO WARN EMPLOYEE S AT THE SHAFT BOTTOM AND SUBSUR FACE SHAFT EN TRANCES, SHALL FLASH IF A LOAD IS ABOVE THE SHAFT BOTTOM OR SUBSUR FACE EN TRANCES OR IF THE LOAD IS BEING MOVED IN THE  SHAFT.  THIS  SUBRUL E  DOES NOT  APP LY TO FU LLY EN CLOS ED HOISTW AYS.

(16)        IF A HOISTW AY IS  NOT FU LLY EN CLOS ED AND EMPLOYEE S ARE AT THE SHAFT  BOTTOM ,  THEN  CONVEYANCES  OR  EQUIP MEN T  SHALL  BE  STOPPE D

 

 

NOT LESS THAN 15 FEE T ABOVE THE  BOTTOM  OF  THE  SHAFT  AND  HE LD THE RE UN TIL THE SIGN ALPE RSO N AT THE BOTTOM OF THE SHAFT DIR ECTS THE OPE RATOR TO CONTINUE LOWERING THE LOAD, EXCEP T THAT THE LOAD MAY BE LOWERED WITHOUT STOPP ING IF THE LOAD OR CONVEYANCE IS WITHIN FU LL VIEW OF A BOTTOM SIGN ALPE RSO N WHO IS  IN  CONS TANT VOIC E COMM UNI CATIO N WITH THE OPE RATOR.

(17)         CAGE, SKI PS, AND LOAD CONNE CTIO NS TO THE HOIST ROPE SHALL BE MADE SO THAT THE FORCE OF THE HOIST PU LL, VIBRATIO N, MIS ALIG NMEN T, RELEASE  OF  LIFT  FORCE,  OR   IMPACT   WILL   NOT   DIS EN GAGE   THE CONNE CTIO N. MOUSE D OR LATCHE D OPEN -THROAT HOOKS DO  NOT  MEE T THIS REQUI REMEN T.

(18)       WHEN USIN G WIRE ROPE WEDGE SOCK ETS, MEANS SHALL BE PROVIDED TO PREVEN T WEDGE ESCAPE MEN T AND TO EN SUR E THAT THE WEDGE IS PROPE RLY SEATED.

(19)             HOISTS SHALL BE DESIGN ED SO THAT THE LOAD HOIST -DRUM IS POWERED IN BOTH DIR ECTIO NS OF ROTATIO N AND SO THAT THE BRAKES ARE AUTOMATIC ALLY APP LIED UP ON POWER RELEASE OR FAILUR E.

(20)         IF A CRANE IS USE D FOR BOTH PE RSO NNE L HOISTI NG AND MATERIAL HOISTI NG, THEN THE LOAD AND SPEE D RATINGS FOR PE RSO NNE L AND FOR MATERIALS SHALL BE ASSIGN ED TO THE EQUIP MEN T.

(21)        EMPLOYEE S SHALL NOT RID E ON TOP OF ANY CAGE, SKI P, OR BUCKET, EXCEP T WHEN NE CESSARY TO PE RFORM INS PE CTIO N OR MAINT EN ANCE OF THE HOISTI NG SYSTEM, IN WHICH CASE THE Y SHALL BE PROT ECTED BY A BODY BELT/HARNESS FALL PREVEN TIO N SYSTEM.

 

R 408 .41477   Stationa ry ma te ri al ho ists .

Rule 1477 . (1) A hoist used for ra ising or lowering mat erials in a sha ft sha ll ha ve a minimum factor of safety of 5, sha ll be des igned an d rat ed by an engineer com petent in th is THE field, an d sha ll be con stru cted in a ccor dan ce with s u ch THE des ign. T h is THE des ign sha ll BE CONS TRUCTED SO THAT in cor p orat e p r ovis ion s s o th e hoist cann ot exceed th e ma ximum rat ed speed .

(2)     The rat ed capacity of th e hoist sha ll be posted at all work ing level s.

(3)     Ea ch hoist asse mbly sha ll be load tested to 200 % of it s rat ed capacity upon insta llat ion, after an y repairs or alterat ions a ffect ing it s stru ctura l int egrity or operat ion of safety devices, an d every 6 month s dur ing use. A writt en recor d of each test sha ll be ma inta ined for th e durat ion of th e pr oject an d sha ll be ma de available for inspe ct ion by auth orized represe ntat ives of th e director.

(4)     Hoist equipment an d th e operat or sha ll be protected from inclement weath er by a hoist house with a com forta ble temperatur e ma inta ined.

(5)       Where glass is used in hoist house windows, th e glass sha ll be of safety glass or ITS equivalent .

(6)       Hoist contr ols sha ll be locat ed in s u ch an arran ge m e nt ARRANGED to mak e th em opera ble from a single position of th e operat or.

(7)      Contr ols for powered hoists sha ll be of th e deadman -type with a non-lock ing switch or contr ol.

 

 

(8)     A device to shut off th e power sha ll be insta lled ah ead of th e operat ing contr ol.

(9)      A hoist ma chine with THAT HAS cast meta l part s sha ll be limited to 2,000 poun ds single line pull.

(10)     All hoists sha ll be equipped with lan ding level indicat ors at th e operat or 's stat ion.

(11)     MATERIAL, TOOLS , AND SU PP LIES BEING RAISED OR LOWERED, WHE THE R WITHIN A CAGE OR OTHE RWIS E, SHALL BE SECURED OR STACKED IN  A MANNE R TO PREVEN T THE LOAD FROM SHIFTING, SN AGGI NG, OR FALLI NG INTO THE SHAFT.

 

R 408 .41478   Pe rsonne l ho ists .

Rule 1478 . (1) A personn el hoist sha ll be used to ra ise or lower an employee in a tunn el sha ft or caisson. A CRANE MAY BE USE D TO RAISE OR LOWER AN EMPLOYEE , IF THE CRANE AND THE WORK PLATFORM ARE AS PRESCRIB ED IN R 408 .41001 ET SEQ.,  CONSTRUCTIO N  SAFE TY  STANDARD  PART  10  ‘LIFTING  AND  DIGGI NG

EQUIP MEN T.’ The hoist sha ll be in com plian ce with th e provisions of Act N o. 227 of th e Pu blic Act s of 1967 , a s am e n ded , bei n g S408 .801 e t seq . of th e Mich igan C om p ile d L a ws , an d 1967 PA 227 , MCL 408 .801 ET SEQ., BUREAU OF CONSTRUCTIO N CODES, ELEVATOR  SAFE TY  BOARD,  R  408 .8511  TO  R  408 .8524  ARE  ADOPTED   BY REFE REN CE IN THE SE RULE S. THE PROVISIONS ARE AVAILABLE AT NO COST AS  OF  THE  TIM E  OF  ADOPTIO N  OF  THE SE   RULES  FROM   THE   MIC HIGAN DEP ARTMEN T OF CONSU MER AND INDUSTR Y SERVICES, BUREAU OF CONSTRUCTIO N CODES, 2501 WOODL AKE CIRCL E, OKEMOS , MIC HIGAN 48909 ; OR WEBSIT E: WWW.C IS .ST AT E .MI .US .BCC; OR FOR REVIEW AT THE MIC HIGAN DEP ARTMEN T OF CONSU MER AND INDUSTR Y SERVICES, MIOS HA STANDARDS DIVISION , 7150 HARRIS  DRI VE, P.O. BOX 30643 , LANSIN G, MIC HIGAN 48909 -8143 .

th e ru le s of th e dep artm e nt of con s um e r an d in d u s tr y se r vices r elat in g t o elev at or s , bei n g R 408 .8511 t o R 408 .8524 of th e Mich igan Ad m in is trat ive C ode . Dur ing th e excavat ion of a sha ft or caisson, an employee ma y be ra ised  or  lowered  on  a  work  plat form  if th e work plat form meets th e specificat ions of subru le (2) of th is ru le.

(2)      A work plat form that is atta ched to th e load line of a cran e which is used to tran sport , ra ise, or lower employees sha ll be in com plian ce with all of th e followin g provisions:

(a)       Be des igned by a qua lified person. All weldi ng sha ll be in a ccor dan ce with applicable American Welding Society stan dar ds. AMERIC AN WELDI NG SOCI ETY (AWS) STANDARD IHS AWSC ‘AWS--STRUCTUR AL WELDI NG CODE,’ 2000  EDITIO N,  th e

r eq u ir e m e nt s of ANSI /AWS D1 .1 -88 , S tru ctura l Wel d in g C ode , ar e adopted by reference in th ese ru les an d ar e available at  a cost as of th e t ime of adoption of th ese ru les of $350 .00

$60 .00 from th e GLOB AL EN GINEE RING DOCUMEN TS, 15 IN VERNESS WAY EAST, EN GLEWOOD, COLOR ADO 80112 ; WEB-SIT E: WWW.GLOB AL .I H S .COM; OR FOR REVIEW AT THE MIC HIGAN DEP ARTMEN T OF CONSU MER AND INDUSTR Y SERVICES, MIOS HA STANDARDS DIVISION , 7150 HARRIS  DRI VE, P.O. BOX 30643 ,

LANSIN G, MIC HIGAN  48909 .   Am e r ican  Nat iona l  S tan d ar ds  I n s t itut e ,  11  We s t  42 n d S tr ee t , N ew York , N ew York  10036 , or  fr om  th e Am e r ican  Wel d in g S ocie t y, 2501  N .W. S tr ee t , Miam i, F lor id a 33215 , or fr om th e S a fe t y S tan d ar ds Divisi on , Mich igan Dep artm e nt of C on s um e r an d I n d u s tr y Se r vices , P .O . B ox 30015 , L an s in g, Mich igan 48909 .

 

 

(b)         Except for th e guar dra il system, be of welded mild steel con stru ct ion that ha s a minimum safety factor of 5 t imes th e ma ximum int ended load.

(c)          Ha ve cont inu ous mild steel guar dra ils (topra ils an d midra ils) an d toeboar ds as prescribed in R 408 .44501 ET SEQ., CONSTRUCTIO N SAFE TY STANDARD Part 45 ‘Fa ll Pr otection.’ bei n g R 408 .44501 e t seq . of th e Mich igan Ad m in is trat ive C ode .

(d)     Ha ve wood plank ing, steel plat e, or grat ing that is bolted or welded to th e bott om of th e work plat form .

(e)     Ha ve a 4-point wire suspe nsion system that ut ilize s wire which is not less than 1/2 of an inch in diam eter. Ea ch leg of th e suspe nsion system sha ll be indepe ndent wire rope that ha s han d-tu cked eye splices or swed ged fitt ings on each end. Wire rope clips sha ll not be used. The indepe ndent suspe nsion system sha ll be atta ched to th e work plat form using proper size screw pin sha ckles.

(f)     Ha ve each leg of th e indepe ndent 4-point suspe nsion system at a 30-degree an gle from th e vert ical.

(g)       Be conn ected to th e load line by mean s of a screw pin sha ckle or a gat ed h ook . Both ends of a minimum 5/8-inch wire rope safety line sha ll be insta lled above th e headache ball to a screw pin sha ckle an d pass thr ough th e eyes of th e work plat form suspe nsion system to prevent th e plat form from fa lling if disengaged from th e gat ed h ook. If a screw pin sha ckle is used in place of a gat ed h ook , THEN th e 5/8-inch wire rope safety line is not required.

(h )  Ha ve overh ead protection when th ere is an overh ead ha zar d.

(i)     Ha ve a perman ent ly a ffixe d sign that specifies th e ma ximum num ber of passe ngers, th e ident ificat ion num ber, an d th e ma ximum int ended load.

(j)     Be easily ident ifiable by high-visibili ty color or mark ing.

(3)        Befor e a work plat form is  used  on  a  jobsite,  it  sha ll  be  load-tested  to 2  t imes  th e ma ximum int ended load.

(4)        The work plat form an d th e  test  load  sha ll be  ra ised  an d  lowered  to th e  ma ximum ant icipat ed chan ge of elevat ion.

(5)     )  A recor d of th e load test sha ll be ma inta ined on th e jobsite.

(6)      Em ployees on th e work plat form sha ll be provided with , an d be required to use, proper safety equipment as PRESCRIB ED r eq u ir ed by IN R 408 .40601 ET SEQ., constru ct ion safety stan dar ds Part 6 ‘Persona l Pr otective Equipment .’ bei n g R 408 .40601 e t seq . of th e Mich igan Ad m in is trat ive C ode , an d R  408 .44501 ET  SEQ., CONS TRUCTIO N SAFE TY STANDARD  Part  45  ‘Fa ll  Pr otection.’  bei n g  R  408 .44501  e t   seq .  of  th e  Mich igan Ad m in is trat ive C ode . An employee sha ll wear  a safety belt that  ha s a lan yar d a ffixe d to th e safety belt an d to th e top  ra il  of  th e  steel  guar dra il  system  of  th e  work  plat form . Stan ding on th e guar dra il system is prohibited.

(7)         Fr ee-sp oolin g is prohibited  when  using  a  work  plat form  to  lower  personn el.  The ma ximum rat e of tra vel sha ll be 100 feet per minut e.

(8)      All sides of personn el cages sha ll be enclosed by 1/2-inch (12.70 mm ) wire mesh, which sha ll not be less than no. 14 gau ge or it s equivalent , to a height of not less than 6 feet (1.83 m). When th e cage or skip is being used as a work plat form , it s sides ma y be reduced in height to 42 inches (1.07 m) when th e con veyan ce is not in  motion.  All personn el cages sha ll be provided with a positive-lock ing door that ONLY OPEN S IN WARD. d oes n ot ope n out war d .

 

 

(9)     The ra ils on 1 side of personn el cages sha ll be removed an d a cha in sha ll be insta lled in place of th e top ra il to provide a door opening. The cha in sha ll be secur ely fastened dur ing all tra vel an d only be opened dur ing a ccess to, or egress from, th e work plat form .

(10)     Only han d an d porta ble powered t ools sha ll be perm itt ed on th e work plat form .

(11)     Flamma ble or com bustible liquids or gases sha ll not be perm itt ed on th e work plat form if th e plat form is occu pied by an employee or employees.

(12)       Plat form s sha ll not be used dur ing adverse weath er con ditions that cou ld a ffect th e safety of employees.

(13)     There sha ll be a commun icat ion system, which ma y be a han d signa l, a telep hone wire, or a selective frequency ra dio system, between employees on th e work plat form an d th e operat or of th e cran e. The system sha ll be in com plian ce with both of th e followin g provisions:

(a)          If han d signa ls ar e being employed an d employees ar e being ra ised , lowered, or positioned an d ar e not in cont inu ous sight of th e operat or of th e cran e at all t imes, THEN th e employer sha ll des ignat e an employee, who sha ll not be on th e work plat form , to be th e signa lperson.

(b)     The signa lperson sha ll not be assigned an y oth er dut ies while th e work plat form is in a suspe nded position with employees on it an d sha ll rema in in a  position  so that  both  th e work plat form an d th e operat or can be seen at all t imes.

(14)      The cran e sha ll be inspected daily befor e being used with a work plat form . All of th e followin g com ponent s sha ll be inspected:

(a) The wire rope.  (b) The h ook.  (c) The brak es.  (d)  The boom .

(e) Any oth er mechan ical an d rigging equipment that  is vita l to th e safety of th e operat ion.

(15)       Any stru ctura l or mechan ical defect that cou ld adversely a ffect th e safe operat ion of th e cran e sha ll be corr ected befor e an operat ion that  ut ilize s a work plat form begins.

(16)     Inspe ct ions sha ll be logged an d th e recor ds ma inta ined on th e jobsite.

(17)         The operat or of a cran e that  is  used  to  ra ise  or  lower  a  work  plat form  sha ll  be auth orized by th e employer an d properly qua lified to per form th e operat ion.

(18)      A properly qua lified cran e operat or sha ll not be auth orized to ra ise or lower a plat form un less th e operat or ha s ha d not less than  8 hour s  of expe rience in  th e operat ion  of th e SPE CIFIC cran e OR ON A CRANE OF THE SAME TYPE AND DESIGN .

(19)      A cran e that is used to ra ise or lower a work plat form sha ll not be with in 25 feet of an overh ead energized power line at th e closes t point of conta ct .

(20)     When a cran e is being used with a work plat form , an oth er load sha ll not be atta ched to th e work plat form .

(21)       Only a cran e that is equipped with a boom that ha s a power contr ol lowering system sha ll be allowed to ra ise or lower a work plat form .  The cran e boom sha ll not be live.

(22)      The operat or of th e cran e sha ll rema in at th e contr ols with th e engine runn ing when an occu pied work plat form is in a suspe nded position.

(23)     The load line of a cran e that is used to ra ise or lower a work plat form sha ll be equipped with a swivel to prevent an y rotat ion of th e work plat form . The use of nonspin wire rope is prohibited.

(24)      Neith er th e load nor th e boom sha ll be lowered below th e point where less than 4 full wra ps of rope rema in on th eir respe ctive drum s.

 

 

(25)       A cra wler cran e that is used to ra ise or lower a work plat form sha ll be set on a firm base an d ch ock ed to prevent movement .

(26)     cran e sha ll not tra vel in an y direction when personn el ar e on th e work plat form .

(27)        A cran e that is equipped with outr iggers sha ll ha ve th e beam s fully extended , th e jacks lowered, an d each float on a firm base when th e work plat form is in use.

 

R 408 .41479   Flooding ; sa fe ty sc reens ; run w ays .

Rule 1479 . If th ere is a dan ger of ra pid floodin g in a tunn el that ha s a bore of 16 feet or more in diam eter, th en both of th e followin g sha ll be provided:

(a)     A run way from th e face to th e bulkh ead as high in th e tunn el as pra ct icable to ma inta in not less than a 6-foot  vert ical clearan ce  from  th e  sur face  of th e  run way upwar d  to th e sur face of th e tunn el. The run way sha ll be con stru cted of non com bustible  mat erial an d sha ll ha ve a stan dar d ra iling insta lled secur ely along th e length of th e run way as prescribed  in  R  408 .42101  ET  SEQ.,  th e  con stru ct ion  safety  s tan d ar ds  comm iss ion stan dar ds Part 21 ‘Guar ding of Walking an d Work ing Areas,’ bei n g R 408 .42101 e t seq . of th e Mich igan  Ad m in is trat ive  C ode ,  an d  R  408 .44501  ET  SEQ.,  CONSTRUCTIO N SAFE TY STANDARD Part 45 ‘Fa ll Pr otection.’ bei n g R 408 .44501 e t seq . of th e Mich igan Ad m in is trat ive C ode . If th e run way is ram ped un der a safety screen, THEN th e sur face sha ll be ma de slip-resis tant  by cleat s or oth er equivalent mean s.

(b)     Meta l safety screens or oth er equivalent mean s insta lled with th e bott om of th e screen 4 feet above th e sur face of th e run way. The fir st screen sha ll be locat ed not less than 400 feet from th e face of th e tunn el.

 

COFFERD AMS AND CAISS ONS

 

R 408 .41481   Cofferdams .

Rule 1481 . (1) A coffer dam sha ll be des igned by an engineer WHO IS com petent in th e field an d sha ll be con stru cted an d ma inta ined in a ccor dan ce with th e des ign.

(2)     If overt opping of th e coffer dam by high wat ers is possible, th en mean s sha ll be provided for contr olled floodin g of th e work ar ea.

(3)        Warn ing signa ls for th e evacuat ion of employees in case of an emergency sha ll be developed an d posted.

(4)       A coffer dam sha ll ha ve not less than 2 mean s of egress . Run ways, bridges, or ram ps sha ll be provided with guar dra ils as PRESCRIB ED spe cifie d in th e R 408 .44501 ET SEQ., con stru ct ion safety s tan d ar ds comm iss ion  stan dar d  Part  45  ‘Fa ll  Pr otection.’  bei n g  R 408 .44501 e t seq . of th e Mich igan Ad m in is trat ive C ode .

(5)       If coffer dam s ar e locat ed close to na vigable shipping chann els, th en warn ing devices that  ar e visible to vesse ls in tran sit sha ll be provided .

 

R 408 .41483   Caissons  used  unde r pressu re.

Rule 1483 . (1) A caisson used un der press ur e sha ll be subjected to a hydrostat ic test equa l to 200 % of th e work ing press ur e befor e being used on a job, at which press ur e it sha ll be tight . The caisson sha ll be stam ped  on  th e out side  shell  about  12  inches  from  each flan ge to show th e press ur e to which it ha s been subjected.

 

 

(2)      ALL CAISSONS THAT HAVE A DIAMETER OR SID E GREATER THAN 10 FEE T SHALL BE PROVIDED WITH A MAN LOCK AND SHAFT FOR THE EXCLUSI VE USE OF EMPLOYEE S. IN ADDITIO N TO THE GAUGE IN THE LOCKS , AN ACCURATE GAUGE SHALL BE MAINT AIN ED ON THE OUTER AND INN ER SID E OF EACH BULKHE AD. THE SE GAUGES SHALL BE ACCESSIBL E AT ALL TIM ES AND KEP T IN ACCURATE WORK ING ORD ER.

(3)          IN CAISSON OPE RATIO NS WHE RE EMPLOYEE S ARE EXPOSED TO COMPRESSED AIR WORK ING EN VIRONM EN TS, AS PRESCRIB ED IN R 325 .62991 ET SEQ., OCCUP ATIO NAL HE ALTH  STANDARD  PART  665  ‘UN DERGRO UN D CONS TRUCTIO N, CAISSONS , COFFE RDAMS, AND COMPRESSED AIR’ SHALL BE COMPILED WITH.