Section 460.3617. Reports to be filed with the commission.

(1) A utility shall file, with the commission, within 30 days after the first day of January of each year, an officer-certified statement that the utility has complied with all of the requirements set forth in these rules relating to meter standardizing equipment.

(2)  For all meters that  are not included in  the  provisions  of   R 460.3613(2)(b), the utility shall file, with the commission, on or before the first day of April of each year, its annual tabulation of all of  its prior-to-adjustment meter test results covering the 12-month period ending December 31. The utility shall summarize, by meter type, all individual meters and overall light and heavy load prior-to-adjustment test results at the power factors required by these rules. The summary shall be divided into

heavy load 100% power factor, light load 100% power factor, and heavy load 50% power factor test results and shall also be divided according to the length of meter test period and  types  of  single-phase   and  polyphase meters. The summary shall show the number of meters or overall tests found within each of the following accuracy classifications:

(a)  No recording.

(b)   Creeping.

(c)  Equal to or less than 94.0%. (d) 94.1 to 96.0%.

(e) 96.1 to 97.0%.

(f) 97.1 to 98.0%.

(g) 98.1 to 99.0%.

(h) 99.1 to 100.0%.

(i) 100.1 to 101.0%.

(j) 101.1 to 102.0%.

(k) 102.1 to 103.0%.

(l) 103.1 to 104.0%.

(m) 104.1 to 106.0%.

(n) Over 106.0%.

When a utility is subject to multiple state jurisdiction, these  accuracy classifications may be modified with the approval of the commission.

(3)     For  all  meters  that  are  included  in  the   provisions   of    R 460.3613(2)(b), the utility shall file, with the commission, on or before the first day of April, all of the following information:

(a)   A summary of all samples of meter lots that  pass    the    acceptability criteria as set forth in ANSI/ASQC Z1.9-1980, including complete  data  on all of the following:

(i)   The type of meter.

(ii)   The number of meters in a lot.

(iii)   The size of the sample.

(iv)   The average months in service since the last test.

(v)   The computed p (total estimated percent defective in lot).

(vi)    The     corresponding       M    (maximum    allowable        percent      defective)     as determined from table B-3 in ANSI/ASQC Z1.9-1980.

(b)    The necessary calculations made pursuant to Example B-3 of ANSI/ASQC Z1.9-1980 shall be retained for each sample or resample drawn. In addition to the actual computation, the data shall include all of the following:

(i)   The type of meter.

(ii)   The number of meters in the lot. (iii)The meter numbers of sample meters.

(iv)   The actual prior-to-adjustment test data of each meter tested.

(v)   The number of months since the last  test  for  each   meter   in   the sample.

A sample  of  the  calculations   and  data   for  a  lot    that   passes     the acceptability criteria shall be included in the report to the commission.

(c)   A copy of the complete data, as outlined in this subrule, shall be included for each meter lot that is not in  compliance  with  the acceptability criteria of the sampling plan  employed  as   set   forth   in ANSI/ASQC Z1.9-1980.

(d)   A report summarizing the testing of all meters in rejected lots that are to be returned to service. The heavy load preadjustment tests only shall be recorded, and the accuracy classifications  as  established   in subrule (2) of this rule  shall   be  used. Each rejected  lot   shall  be reported separately and shall be separated into groups by the  number  of months since the last test as follows:

(i)   0 to 48 months.

(ii)   49 to 72 months.

(iii)   73 to 96 months.

(iv)   More than 96 months.

History: 1983 AACS; 1995 AACS.