GFI Receptacles: GFI receptacles shall be required in all elevator machine rooms, machinery spaces and elevator pit areas. ASME A17. 1 NEC, 620.23(C) & 620.24(C).
What shall be located at the point of entry to an elevator machine room?
As per Sec. 620.23(B), “The machine room or control room/machinery space or control space lighting switch shall be located at the point of entry.”
Which NEC article will have elevator requirements?
NEC Article 620 covers elevators, dumbwaiters, escalators, moving walks, platform lifts and stairway chairlifts.
Can NM cable be used on an elevator?
Nonmetallic-sheathed cable (Type NM, trade name Romex) is prohibited in most non dwellings and not used in elevator work.
What is an elevator equipment room?
The Machine room is an area set aside for the elevator equipment and consists of the Controller, 2 electrical disconnects and the pump unit. The Controller is a series of relays to help the elevator run, think of it as the brain. … The equipment can be located in a room with other home services.
Are fire extinguishers required in elevator machine room?
All elevator machine rooms require a fire extinguisher which is properly tested and maintained per ASME A17. … It’s recommended that you mount the extinguisher near the jamb side of the machine room entrance door and not in the way of workers who need to exit quickly.
Are shunt trip breakers required for elevators?
3.3. 2 (Safety Code for Elevators and Escalators) and the NEC 620.51(B) require power to an elevator be shut down prior to the release of water in the elevator shaft or machine room. This is typically accomplished by a shunt-trip device. … Surge protection is required per NEC 620.51.
What items are permitted in the elevator machine room?
Only such electrical wiring, raceways, and cables used directly in connection with the elevator or dumbwaiter, including wiring for signals, for communication with the car, for lighting, heating, air conditioning, and ventilating the elevator car, for fire detecting systems, for pit sump pumps, and for heating, …
Do elevators have fuses?
Hydraulic elevator installations are typically supplied from the main switchboard and have an elevator fused switch or circuit breaker in the machine room that serves as the elevator disconnect. Figure 5. Selective coordination charts for Eaton Circuit Breakers.
What is the difference between NM and NMC cable?
Type NM cable is defined as insulated conductors enclosed within an overall nonmetallic jacket, while Type NMC is insulated conductors enclosed within an overall corrosion-resistant nonmetallic jacket. The only difference between the two definitions is that NMC is corrosion-resistant and NM cable is not.
What does NM B wire mean?
Type NM-B (Non-Metallic Sheathed Cable) is commonly used for residential wiring of luminaries, devices and appliances. Type NM-B ampacity limitation shall be in accordance with the 60ºC conductor temperature rating, as specified in the NEC.
What is Romex cable used for?
Romex (shown in yellow above) is the trade name for a type of electrical conductor with non-metallic sheathing that is commonly used as residential branch wiring. In fact, Romex will be the most common cable you’ll use in wiring a house.
Are elevator machine rooms required?
(1) Elevator driving machines, motor generator sets, controllers, and auxiliary control equipment shall be installed in a room or enclosure set aside for that purpose. Exception to subsection 3011(A)(1):
Do elevators need a machine room?
Hydraulic and traction elevators require machine rooms adjacent to the elevator hoistway and therefore take up leasable area in buildings, while requiring additional support services that include dedicated HVAC.
Do hydraulic elevators need machine rooms?
The elevator descends as a valve releases the fluid from the piston. They are used for low-rise applications of 2-8 stories and travel at a maximum speed of 200 feet per minute. The machine room for hydraulic elevators is located at the lowest level adjacent to the elevator shaft.