(1) The electric supply line and apparatus of the Lift shall be of sufficient ratings ofpower, insulation and estimated fault current and of sufficient mechanical strength for the duty which they may be required to perform, Over current protection for power and control circuits, shall be provided.
(2) Each Lift shall be capable ofbeing isolated from the main supply by suitable locking arrangement.
(3) For banks of interconnected Lifts, a separate sub circuit is required for the common supervisory system, in order that any one car may be shut down without isolating the supervisory control of the remainder.
(4) Machine rooms enclosing Lift equipment shall be provided with adequate illumination controlled by a switch fixed adjacent to it's the entrance. At least one socket outlet, suitable for lamps or tools, shall be provided in this room.
PARrI] THEKOLKATAGAZETTE, EXTRAORDINARY, NOVEMBER 11, 2022 27 l~·
(5) The supply to the car light shall be from a separate circuit, and controlled by an independent switch located in themachine room. Formultiple Lifts with a common machine room a separate supply shall be provided for each car. The car lighting shall be independent ofthe power supply mains.
(6) Three pin sockets with switch and a light point shall be provided on each floor. The power supply for this shall be controlled by a switch provided in the Lift well and accessible from the terminal floor entrance.
(7) When the alarm system is connected to a transformer or trickle charger, the supply shall be taken from the machine room lighting or when available, from the building fire alarm system.
(8) All electric supply lines and apparatus in connection with the Lift installation shall be so constructed, installed, protected and maintained so that there may be no danger to persons there from.
(9) A battery-operated telephone shall be provided in the Lift car and for the purpose, a cabinet shall be fitted (optional) in the car and wiring shall be provided from car to terminal box adjacent to the Lift well. Such telephone shall be receivable at the ground floor.
(10) All metal casings ormetallic coverings containing or protecting any electric supply lines or apparatus shall be efficiently earthed.
(11) No bare conductor shall be used in any Lift car as may cause danger to persons.
( 12) A danger notice in Hindi or English and Bengali with a sign ofskull and bones shall be affixed on the (i) door ofthe machine room, (ii) Lift motor and (iii) Lift controller.