ewlsey
Diamond
- Joined
- Jul 14, 2009
- Location
- Peoria, IL
I need advice from someone with some experience in industrial wiring.
See the attached drawing. Basically, if I have a branch circuit, say 100A, and I want to further distribute the power using fuseable switches, what is the proper procedure?
More specifically, if I use a wiring trough with a 100A feeder, do I need wire capable of handling 100A for each sub circuit? It seems like systems I have seen use smaller wire for the sub circuit on both sides of the fused switch. Is this correct?
Basically, you have 100A potential on one side of the switch and 30A max load on the other side. So does the 30A fuse protect you all the way back to the source, or do you need to be able to handle the 100A on the feeding side of the switch?
See the attached drawing. Basically, if I have a branch circuit, say 100A, and I want to further distribute the power using fuseable switches, what is the proper procedure?
More specifically, if I use a wiring trough with a 100A feeder, do I need wire capable of handling 100A for each sub circuit? It seems like systems I have seen use smaller wire for the sub circuit on both sides of the fused switch. Is this correct?
Basically, you have 100A potential on one side of the switch and 30A max load on the other side. So does the 30A fuse protect you all the way back to the source, or do you need to be able to handle the 100A on the feeding side of the switch?