These requirements cover battery-operated emergency power supply for use in lifts to be located in lift motor rooms to withstand a maximum ambient temperature of 40°C to provide and/or control emergency power supply circuits to the lift car lighting, ventilation and alarm bell in the event of interruption of the normal power supply.
1.1.2 These requirements cover the construction and test of unit equipment for judging its freedom from fire and shock hazards and for ensuring that it has a minimum capability for performing its intended function.
1.1.3 These requirements cover equipment intended for permanent connection to low voltage branch circuits.
SS 209-1996 history
1996SS 209-1996 SPECIFICATION FOR Battery-operated Emergency Power Supply For Lighting, Ventilation And Alarm Bell Of Lifts