(a) Three-phase service entrance installations shall be in accordance with the requirements of the Electric Department. If there are any questions regarding an installation, the customer should inquire of the Electric Department.
Conductors and service equipment shall have a rated capacity of not less than 100 amperes for each individual installation, except that where the entire load of an installation is served from one circuit, the capacity of conductors and service equipment may, at the Borough's discretion, be a lesser amount, but in any event not less than thirty amperes.
(b) In addition to the requirements of the National Electrical Code, the following requirements shall be applicable:
(1) With respect to three-phase, four-wire, wye 120/208 volt service, the phase wires shall be plainly and permanently marked 1, 2 and 3 or color coded at the service head and meter cabinet. The neutral wire shall be color coded white. The ground in the main switch must be connected to an approved ground.
(2) Three-phase, four-wire, delta 240 volt service and three-phase, three-wire service will be approved only under special conditions. The phase wires shall be plainly and permanently marked 1, 2 and 3 or color coded. The neutral wire shall be color coded white. The ground in the main switch must be connected to an approved ground.
(3) If colors are used, No. 1 will be black, No. 2 will be orange and No. 3 will be red. In all cases, whether or not phase wires are colored, the neutral wire will be color coded white. The No. 2 or orange wire shall be the phase wire having the highest voltage to ground.
(4) When parallel services are run, each set of conductors shall be similarly marked.
(Ord. 2211. Passed 4-29-97.)
(5) Customer, at customer's sole option and expense, shall install single- phasing protection for the detection and isolation of loss of any one or more supply phases. The Borough shall not be liable for the loss of power or the loss of one or more supply phases.
(Ord. 2281. Passed 6-18-01.)