malachi constant
Senior Member
- Location
- Minneapolis
Engineer here, designing a city hall. In the council chambers the cable-access TV folk are asking for all AV equipment receptacles to be fed from same phase in same panel. it is a double-tub panel that feeds office and other areas, there is plenty other equipment fed from this panel to balance out phases.
I've never had a request like this and want to make sure I'm not missing anything. These are maybe a dozen 20A/1P circuits. The only thing I can think of is the long built-in furniture where the council sits is fed from a couple conduits in the basement below. There are five circuits feeding this area, my guess is I'll have to derate them if they are all on the same phase. I'm having trouble making sense of the derating in 310 and am not entirely sure it goes into effect here, can anyone help out?
Thanks!
I've never had a request like this and want to make sure I'm not missing anything. These are maybe a dozen 20A/1P circuits. The only thing I can think of is the long built-in furniture where the council sits is fed from a couple conduits in the basement below. There are five circuits feeding this area, my guess is I'll have to derate them if they are all on the same phase. I'm having trouble making sense of the derating in 310 and am not entirely sure it goes into effect here, can anyone help out?
Thanks!