UL 1310-2005《2级电源设备》

These requirements cover indoor and outdoor use Class 2 power supplies and battery chargers
intended for use on alternating current branch circuits with a maximum potential of 150 V to ground. These requirements apply to:
a) Portable and semipermanent mounted direct plug-in units provided with 15 A blade
configurations for use on nominal 120 or 240 V branch circuits;
b) Cord- and plug-connected units provided with a 15 or 20 A attachment plug configuration; and
c) Units permanently connected to the input supply.
Units may also be provided with a direct current input jack for being powered from a vehicle battery
adapter. These units utilize an isolating transformer and may incorporate components to provide an alternating- or direct-current output. Each output provides Class 2 power levels in accordance with the National Electrical Code, ANSI/NFPA 70. Maximum output voltage does not exceed 42.4 V peak for alternating current, 60 V for continuous direct current. These products are intende