emergency lights

[mickeyrench]

I work for a guy who wants to add emergency lights to areas which is fine except the building is already supplied with a bu generator for the entire service. Does anyone see anything wrong with this? Seems like a waste for 1.5 hrs. of em. lights when there is a gen.

 

[iwire]

Just because you have a generator does not mean it qualifies to supply the emergency egress lighting. The generator and all the wiring associated with it must comply entirely with article 700 to be able to supply egress lighting.

You say the generator supplies the entire service, if it does that with just one transfer switch it means you do not have an emergency generator you have an optional standby generator and would still need battery units for the required egress lighting.

 

[cparrott1984]

If a ckt trips Emergency or not you will still have lights. So what I am saying is if the original lighting CKT trips you will still have the other EM lights.... That's why he is adding them. That is not a waste at all.

 

[raider1]

If a ckt trips Emergency or not you will still have lights. So what I am saying is if the original lighting CKT trips you will still have the other EM lights.... That's why he is adding them. That is not a waste at all.

If these lights are required emergency lights they must be fed from an emergency power source. If you have a single generator that feeds the entire building with only a single transfer switch then as Bob pointed out you have an optional standby system and not an emergency system.

For this to work as an emergency system you would need to have a separate transfer switch for the emergency system and all the wiring from that transfer switch to the rest of the emergecy system would need to be kept completely separate from the rest of the premise wiring system in accordance with Article 700.

If these lights are not required emergency lights then you are just fine to put them on the optional standby power.

Chris

 

[WAYNE CLARK]

Night light and em light

Night light and em light

This is a question. Is it ok to to wire in a night light and an e.m. Light on the room lighting ckt?