ken44
Senior Member
- Location
- Austin, TX
1. Is it permissible to install an electrical receptacle in a plenum rated ceiling? I cant find where it would be prohibited under article 406. I ask this question because there was a master electrician that worked here a few years ago that always stood by the fact that an "arcing device" was not allowed in a ceiling since we have an entire building where the tenant had an electrical contractor install a grid of "twist-lock receptacles" about every ten feet which allowed them to plug and un-unplug their modular furniture systems without calling an electrician.
2. I have an 18 circuit panel (SQD-NQ) rated at 100 amps, 3 phase, the raceway to the panel consist of a 200' run of 1-1/4" EMT, I intend to run #3 THHN Copper (Good for 100 amps in the 75 degree column of 310-16) and protect the wire with a 80 amp main circuit breaker. I intend to use the panel it in a breakroom to feed kitchen equipment. I dont have a calculated load on the drawings I received but they do show the equipment list which is: 2 refrigerators, a coffee maker, a microwave and a vending machine, each will have its own branch circuit. Does anyone see a problem with the feeder wire size, MCB, Voltage Drop or see anything else that can be brought into question?
2. I have an 18 circuit panel (SQD-NQ) rated at 100 amps, 3 phase, the raceway to the panel consist of a 200' run of 1-1/4" EMT, I intend to run #3 THHN Copper (Good for 100 amps in the 75 degree column of 310-16) and protect the wire with a 80 amp main circuit breaker. I intend to use the panel it in a breakroom to feed kitchen equipment. I dont have a calculated load on the drawings I received but they do show the equipment list which is: 2 refrigerators, a coffee maker, a microwave and a vending machine, each will have its own branch circuit. Does anyone see a problem with the feeder wire size, MCB, Voltage Drop or see anything else that can be brought into question?
