The following sections of the electrical code are hereby amended as set forth in this section. Subsequent section numbers used in this chapter shall refer to like numbered sections of NFPA 70:
110.5 Delete section 110.5 and replace as follows:
“110.5 Conductors. Conductors normally used to carry current shall be of copper. The sizes given in this code shall apply to copper conductors.”
230.42(D) Add the following new section 230.42(D):
230.42(D) Ungrounded Conductors. Ungrounded conductors shall not be smaller than:
1. 200-ampere, 3 wire, for a one family dwelling.
2. 100-ampere, 3 wire, for an existing one family dwelling.
3. 60-amperes for other loads.
Exceptions:
(a) For loads consisting of not more than two 2-wire branch circuits, no. 6 copper.
(b) By special permission, for loads limited by demand or by the source of supply, no. 6 copper.
(c) For limited loads of a single branch circuit, no. 12 copper, but in no case smaller than the branch circuit conductors.
230.43 Delete section 230.43 and replace as follows:
“230.43 Wiring Methods For 1000 Volts Or Less. Service entrance conductors shall be installed in accordance with the applicable requirements of this code covering the type of wiring method used and limited to the following methods:
1. Rigid metal conduit
2. Intermediate metal conduit
3. Electrical metallic tubing
4. Wireways
5. Busways
6. Auxiliary gutters
7. Cablebus
8. Rigid polyvinyl chloride conduit (PVC)
9. High density polyethylene conduit (HDPE)”
250.64(A) Delete section 250.64(A) and replace as follows:
“(A) Aluminum Or Copper-Clad Aluminum Conductors. Bare aluminum or copper-clad aluminum grounding conductors shall not be used.”
320.12 Add the following 320.12 (6):
“(6) In lengths of more than 6'.”
2701.2 Add the following new section 2701.2 as follows:
“2701.2 Additional Special Rules. The following special rules and regulations are hereby adopted as part of this international building code and international residential code:
1. All electrical wiring shall be in intermediate metallic conduit, rigid conduit, electrical metallic tubing as specified in NFPA 70, except that other types of conduit or wiring protection may be permitted by the building official.
2. Conduit on or below grade shall be galvanized rigid. All exterior conduit shall be rigid (steel or aluminum) or intermediate metallic.
3. When a question arises as to method or material used, the ruling of the building official shall govern.
4. All unused or abandoned electrical equipment shall be removed.”
2701.2 Add the following new section 2701.2:
“2701.2 Electrical Equipment. All buildings (other than one and two family dwellings) shall provide an electric shunt switch, of the type approved by the code official, that will disconnect all power to the building, except emergency generator power, or electric company main vaults (constructed per code) and be placed at a location approved by the fire code official.
Exceptions:
1. Existing buildings, unless being renovated or change of use or have the installation of a new electrical panel or service, will be exempt from this requirement.
2. One and two family dwellings are exempt from the electric shunt switch but shall have an exterior disconnect for the main electric service.”
2701.3 Add the following new section 2701.3:
“2701.3 Registration. It shall be unlawful for any person, firm, or corporation to engage in the business of an electrical contractor or electrical contractor limited, without being registered as an electrical contractor or electrical contractor limited.”
(Ord. 2013-4, 2-25-2013; amd. Ord. 2023-14, 5-8-2023)