(1) All Lifts shall have machine rooms immediately over the Lift well, and this shall be arranged whenever possible without restricting the overhead distance required for normal safety precautions. Where the machine room is immediately over the Lift well there shall be permanent and direct access from the top of Lift landing. Alternative machine positions may be permitted by the ChiefElectrical Inspector when there are special reasons justifying the same.
(2) All machine rooms shall be provided with adequate ventilation to dissipate the heat generated by the Lift equipment. Formost single and double installations, a high and low louvered convection ventilation arrangement shall be provided. For groups ofthree or more Lift in one machine room, increased ventilation is necessary and forced ventilation shall be provided.
(3) All machine rooms shall be considered as plant space, and conditions provided to permit reliable operation of electrical switch gear and space around the machine shall in no case be less than 60 centimeters.
(4) Lighting shall be provided to give at least 200 lux around the controller and machine. The machine room walls, ceiling and floor shall be faced in dust-resisting materials, tiles, etc., or painted to stop dust circulation.
(5) The machine room shall be of strong construction. The floor of the machine room shall be capable of carrying the load of the Lift machinery and other equipment housed therein. Whenever a water tank is required to be constructed above or adjacent to the machine room, there shall be minimum separation 400 millimeters between the wall or slab ofthe machine room and the water tank.
(6) The Machine room shall be provided with reasonable access for the entry or removal of the equipments therein or of any part thereof. The height of the machine room shall be sufficient to allow any part of the equipment to be accessible and removal for repairs and replacement and in no case the height shall be less than 2.0 meters clear from the floor or the platform for machine elevator whichever is higher.
23THEKOLKATAGAZETIE, EXIRAORDINARY, NOVEMBER 11, 2022 The machine room shall be provided with fire proof and weather proof access doors opening outwards.
If the floor or platform of any machine room does not cover the entire Lift well, the open sides shall be provided with hand rails or shall be guarded by other suitable means.
Themachine room shall not be used as a store room or for any purpose other than housing the Lift machineries and its associate apparatus and equipment. No inflammable or explosive material shall be kept in the machine room.
(10) The machine room shall be kept locked which shall be accessible only to authorized persons. The key ofthe machine room shall be kept in the custody ofthe owner or his agent and shall be made readily available for repairs, maintenance or inspection.
(11) The machine room shall be provided with an insulated portable hand lamp for examining the machinery.
(12) Thickness ofmachine room wall shall be ofminimum 150 millimeters forR.C.C. structure or 250 millimeters for Brick construction.
(13) The instructions in English or Hindi and Bengali for the rescue ofpersons traveling in the Lift by manual operation of brake in case of failure ofLift motor or power shall conspicuously be affixed in the machine room.
(14) Machine room permanent staircase with hand rails of sufficient strength is to be provided.
(15) Sufficient gap between machine room and water reserver has to be kept.