jraef
First of all I am a EE and second of all if the overloads fail in the motor there is a chance for a short circuit due to overheating and deterioration of insulation which can result in short circuit.
If I connect a electric fire pump a head of the main my understanding is that satisfies a realiable source and I do not need generator backup for the fire pump. Is this correct? Thanks.
I am currently designing the electrical for a 5 story hotel. There are 3 elevators, 1 freight and 2 passenger. Does one of the elevators have to be on emergency backup (generator). I read an article from a consultant stating that recently ADA requires one on emergency for a building with 4 or...
Thanks. Yes the feeder of this circuit will have a circuit breaker. So for example a 50hp exhaust fan would not need a fused disconnect, just a standard disconnect? Thanks.
I seem to get mixed answers on this, but when do I use a fused disconnect instead of a non fused disconnect at a unit. My understanding is a fused disconnect can act as secondary protection to the overloads. I have read that on HVAC units you want to use a fused disconnect. Also I have heard...
