Section 408.30819. Plans and specifications.

Rule 819. Sections 80.21, 80.21.1, 80.21.2, 80.21.3 and 80.21.4 are added to the code to read as follows:

80.21. Plans and specifications. An applicant shall submit a detailed set of plans and specifications with the application for an electrical permit for any wiring or alteration to an electrical system if the system requires installation of electrical equipment that has an ampacity of more than 400 amperes for the service or feeder and if the calculated floor area in a building is more than 3,500 square feet. The enforcing agency may request plans for projects that include an unusual design. The electrical drawings shall include all of the following details:

(a)     Lighting layout.

(b)     Circuiting.

(c)     Switching.

(d)    Conductor and raceway sizes.

(e)     Wattage schedule.

(f)    Service location and riser diagram.

(g)     Load calculations and available fault current calculations.

(h)       A proposed method of construction that is drawn with symbols of a standard form.

All conductors are assumed to be copper unless otherwise stated in the plan. Specifications, when provided, shall also include the information listed in this rule. The selection of suitable disconnect and overcurrent devices to provide proper coordination and interrupting capacity for a wiring system is the responsibility of the designer. The enforcing agency, when approving electrical plans, does not assume responsibility for the design or for any deviations from any electrical drawings. The permit holder shall ensure that the plans and specifications approved by the enforcing agency, or a certified copy of the plans and specifications, where required, are available on the jobsite for the use of the enforcing agency.

80.21.1.      Preparation of plans. An architect or engineer shall prepare, or supervise the preparation of, all plans and specifications for new construction work or repair, expansion, addition, or modification work. The architect or engineer shall be licensed under the occupational code, 1980 PA 299, MCL 339.101 to 339.2919. The plans and specifications shall be sealed and signed pursuant to the occupational code, 1980 PA 299, MCL 339.101 to 339.2919.

Note: For exceptions, see the occupational code, 1980 PA 299, MCL 339.101 to 339.2919.

80.21.2.       Application and permits. The code official shall receive applications, review construction documents, and issue permits for the installation and alteration of electrical systems, inspect the premises for which the permits have been issued, and enforce compliance with the code.

The code official may issue a permit for the construction of and part of an electrical system before the entire construction documents for the whole system have been submitted or approved, provided adequate information and detailed statements have been filed complying with all pertinent requirements of this code. The holders of the permit shall proceed at their own risk without assurance that the permit for the entire electrical system will be granted.

Work shall be installed pursuant to the code and approved construction documents, and any changes made during construction that are not in compliance with the approved construction documents shall be resubmitted for approval as an amended set of construction documents.

80.21.3.    Previous approvals. This code shall not require changes in the construction documents, construction or designated occupancy of a structure for which a lawful permit has been previously issued or otherwise lawfully authorized, and the construction of which has been pursued in good faith within 180 days after the effective date of this code and has not been abandoned.

80.21.4 . Retention of construction documents. The code official shall retain 1 set of approved construction documents for a period of not less than 180 days from the date of final inspection of the permitted work.

80.21.5. Information on construction documents. Construction documents shall be dimensioned and drawn upon suitable material. Electronic media documents may be submitted when approved by the enforcing agency. Construction documents shall be of sufficient clarity to indicate the location, nature, and extent of the work proposed and show in detail that it will conform to the provisions of this code and relevant laws, ordinances, rules, and regulations as determined by the enforcing agency.

History:  1979 AC; 1981 AACS; 1988 AACS; 1991 AACS; 1995 AACS; 1998-2000 AACS; 2004