Section 4390 - Dual Supply(a) Where a dual-supply system, consisting of a generator and provisions for connecting to an outside source is installed, the feeder from the generator shall be protected by an overcurrent protective device.(b) The two supply sources shall not be required to be of the same capacity.(c) If the AC generator source exceeds 30 amperes, 115 volts, it shall be permissible to wire either as a 115-volt system or a 115/230-volt system, provided an overcurrent protective device of the proper rating is installed in the feeder circuit.(d) The external power-supply assembly shall be permitted to be less than the calculated load but not less than 30 amperes and shall have over-current protection not greater than the capacity of the external power-supply assembly.Cal. Code Regs. Tit. 25, § 4390
1. Amendment filed 12-7-79; effective thirtieth day thereafter (Register 79, No. 49). Note: Authority cited: Section 18020, Health and Safety Code. Reference: Section 18055, Health and Safety Code.
1. Amendment filed 12-7-79; effective thirtieth day thereafter (Register 79, No. 49).