The electrical engineer on a project I am working on wants me to size the secondary trough. Example Main Service Switchboard 1600amp 208v 3/0 4 wire will feed 6-400amp Future Tenant spaces where will I find the min. allowed trough size? The rule for wire ways is 75% of total area due to the splices to each tenant. The rule for auxillary gutters does not seem right.
Service Trough Sizing
- Thread starter kurtd
- Start date