Mike Dolt Enterprises
Mike Dolt Enterprises
User: cyriousn, Location: ME / CT
Asked on: Tuesday, March 22, 2011 at 4:18 pm EDT
Answered on: Tuesday, May 14, 2024 at 3:06 am EDT
Question: I have a question on everyone's interpretation of the following verbiage from the life safety code.It states that the emergency lighting system is to be arranged to provide the required illumination automatically in the event of any interruption of normal lighting due to any of the following:? Failure of a public utility or other outside electrical power supply,? Opening of a circuit breaker or fuse, and? Manual act(s), including accidental opening of a switch controlling normal lighting facilities.What I'm trying to figure out is what circuit breaker or fuse they are talking about? Do they really mean to say is that its required to run two seperate branch circuits to a relay such as a Bodine GTD series, before you wire over to your emergency lights?Thanks in advance for any input.
The circuit breaker or fuse referred to in the life safety code is the one that protects the normal lighting circuit. In the event of a failure of this circuit breaker or fuse, the emergency lighting system must automatically provide the required illumination.It is not necessary to run two separate branch circuits to a relay before wiring over to the emergency lights. The emergency lighting system can be connected to the same branch circuit as the normal lighting, but it must be protected by a separate circuit breaker or fuse. This ensures that the emergency lighting system will continue to operate even if the normal lighting circuit fails.The National Electrical Code (NEC) requires that emergency lighting systems be installed in all buildings that are required to have a fire alarm system. The NEC also requires that emergency lighting systems be tested monthly to ensure that they are in proper working order. Flag for review