Elevator Machine Room Requirements Nec

The american society of mechanical engineers publishes the construction standards for elevator equipment rooms.

Elevator machine room requirements nec.

Building the rooms to code means following the proper asme. Where the driving machine of an electric elevator or the hydraulic machine of a hydraulic elevator is located in a remote machine room or remote machinery space a single means for disconnecting all ungrounded main power supply conductors shall be provided and be lockable open in accordance with 110 25. Shunt trip voltage monitoring and control circuit tied into fire alarm system. The preferred location of the control room is adjacent to the hoist way on the top floor but other locations could be used.

These requirements found in article 620 part of chapter 6 special equipment are in addition to nec chapters 1 3 which stipulate general wiring protocols applicable in most residential commercial and industrial venues. We re in the home stretch. The many codes and guidelines that regulate the electrical design of an elevator can seem overwhelming and dealing with the electrical inspector elevator inspector and fire marshal can be even more intimidating. There are just a few things regarding your elevator that you will want to check per the nec.

In the nec article 620 22 620 23 and 620 24 all talk about the requirement for a separate branch circuit does this mean that each location car lighting elevator machine room and elevator pit all need separate circuits for a total of three. National electric code elevator regulations. Nec work space minimum clear distances vary from 3 to 4 feet depending on nominal voltage and mounted electrical equipment condition consult your ahj. Ansi asme a17 1 2 8 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.

Ground fault circuit interrupter gfci protected receptacle outlets are provided in the pit and the machine control room nec 620 23 c nec 620 4 c nec 620 85. As they review the plans and the construction site they may have conflicting interpretations or requirements. This is typically accomplished by a shunt trip device. Tion requirements for elevators escalators and related equipment.