TITLE 4. THE PHILADELPHIA BUILDING CONSTRUCTION AND OCCUPANCY CODE
SUBCODE "E" (THE PHILADELPHIA ELECTRICAL CODE)
SECTION E-2705.0 STANDBY POWER SYSTEMS
E-2705.1 General: Standby power systems are those intended
to supply power automatically to selected loads required by other chapters of
this code, except those classified as emergency systems, in the event of failure
of the normal power source. Standby power systems shall conform to Article 701
of NFPA 70, except as otherwise provided for in this code or the regulations
adopted pursuant thereto. The systems shall pick up their connected loads within
60 seconds of failure of the normal power supply and shall operate under all
weather conditions.