erickench
Senior Member
- Location
- Brooklyn, NY
I look at the above NEC section and I compare it with NEC 300.4(F). I see two different rules for the same situation. In one case the rule says that RMC entering an enclosure must be provided with a bushing regardless of the size of the conductor. But in the other case the rule says that a bushing must be provided if the conductor is No. 4 AWG or larger. Now what makes these two situations different? The only thing I can say is that NEC 300.4(F) should be written so that the rule apply's to all conduit except RMC and IMC.