emergency generators

[tony taylor]

We use emergency in our buildings to supply emergency lighting and operate our cash register systems,(Food store).Section 700.1 states emergency systems is lighting, power or both.
700.6 D says the transfer switch can be used for emergency equipment only.Does this mean our registers can't be tied to the same transfer switch??

Tony

 

[raider1]

Re: emergency generators

Check out 700.1 I don't think that cash registers fall under legally required emergency systems.

The cash registers would be part of a optional standby system (Article 702) and would need to be separate from the emergency system.

Chris

 

[charlie b]

Re: emergency generators

We tend to be sloppy in the use of the word "emergency." That is a term that has a specific meaning in the NEC. Certain things are required to be available, when the utility power is lost. This does not include all lighting. If you have lights on the generator, that does not mean that they are "emergency lights." The generator need not provide power to any lighting, so long as there is a battery backup for the set of lights used to show the egress path.

So when you look up the requirements, take care to distinguish what you need because the law says you need it (the true "emergency" loads) and what you need because the boss wants to keep the business open for business (the "optional standby" loads).

 

[tom baker]

Re: emergency generators

There are three articles that cover what is commonly called emergency generators:
Art 700, 701 and 701. Take a look at the scope and determine what type of generator you have.
The article determines how its wired.