Mike;
Is is NEC legal to have a double fused or double Current limit, ie:C.B. of the same size on a 3 phase 4 wire 480v/277 cold sequence electrical service?
There is a existing 800 Amps I-Line Panel Board. We were thinking to install an additional 800 Amps Circuit Breaker in the same I-Line Panel Board and use it as a Sub-Breaker, to feed cold sequence into a new 800 Amp CT cabnet for metering. There will be no use for any other breakers in the panel, and will only be used this way, locked out by the utility company.
Is this legal to have the same size? Or does load breaker have to be larger or smaller ?
Thank You
William Steenstra
Modern Electric Co.
Is is NEC legal to have a double fused or double Current limit, ie:C.B. of the same size on a 3 phase 4 wire 480v/277 cold sequence electrical service?
There is a existing 800 Amps I-Line Panel Board. We were thinking to install an additional 800 Amps Circuit Breaker in the same I-Line Panel Board and use it as a Sub-Breaker, to feed cold sequence into a new 800 Amp CT cabnet for metering. There will be no use for any other breakers in the panel, and will only be used this way, locked out by the utility company.
Is this legal to have the same size? Or does load breaker have to be larger or smaller ?
Thank You
William Steenstra
Modern Electric Co.