meternerd
Senior Member
- Location
- Athol, ID
- Occupation
- retired water & electric utility electrician, meter/relay tech
I work for an electric utility. We have a customer that wants to add a new meter to a spare socket in an existing multimeter switchboard. The main breaker at the meter is 100A 120/208 3 Ph 4 Wire Wye. The service can supply up to 200A. He wants to feed a 3 pole disconnect that will only feed an X-ray machine in a small clinic unit. The problem is that the conduit size is so small that 100A wire is the largest he can use IF he needs to run a neutral to the disconnect. He'd like to supply more power. The X-ray machine does not use a neutral. I say he doesn't need the neutral but the Town inspector says he does. I can't find in the Code anywhere that it says a neutral is required. I feel that it is only required for a service, not a feeder. What would he even connect it to? Who's right? I'm not going to argue with the inspector, be he might!
