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.
Elevator machine room requirements nec.
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.
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.
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.
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.
And as the designer you can become the fulcrum on which all of these.
National electric code elevator regulations.
Or can any or all be combined into one or two separate circuits.
Building the rooms to code means following the proper asme.
Shunt trip voltage monitoring and control circuit tied into fire alarm system.
Tion requirements for elevators escalators and related equipment.
As they review the plans and the construction site they may have conflicting interpretations or requirements.
There are just a few things regarding your elevator that you will want to check per the nec.
This is typically accomplished by a shunt trip device.
The american society of mechanical engineers publishes the construction standards for elevator equipment rooms.
Elevator safety is a critical consideration for builders who have state safety codes to follow permits to obtain and regular inspections to pass.
We re in the home stretch.