ECN Forum Forums Code Related Discussion NEC & other Code issues Outdoor Disconnect

Rabbit, we definately had the same type of weekend.

Roger

warlus,
Actually the seaing locknut and the hub have the same rating as far as water protection and the locknut is much cheaper.
Don

Don
Thanks for the reply, I've never seen a sealing locknut and by the looks would have never guessed that it would have the same rating as a hub. Seems kind of like a flimsy rig to me and I not sure what would stop water from going thru the threads unless the o ring is big enough to seal around the pipe also?. Interesting

Another thought when punching holes for conductor entry into the side of a cabinet, 312.6 Deflection of Conductors.

I have seen where there is room, and I have seen guys bend the conductors in ways it was not meant to be bent.

There are tables to follow and I bet some don't care - where else do I enter the conductors in the cabinet/enclosure is what I hear.

Pierre

The sealant does cut into the threads so it does get pretty well sealed. A Meyers hub is definitely the way to go on top. On the side a sealing locknut is fine. Make sure the conduit enters the enclosure dead straight.

walrus

From using both I have more faith in the sealing lock nut to stop water than a hub.

I would say a hub provides a stronger mechanical connection as it has more surface area in contact with the enclosure and raceway.

You are correct the seal makes contact with the threads.

That is why I said they can be a bear to put on, I was using a 4" x 6" nipple between NEMA 3R enclosures and threading the sealing lock nuts on the nipple takes wrenches the whole way as the seal presses into the threads.

Once tightened against an enclosure no water is getting by.

The 4" hub on top of my meter socket which has been tightened with wrenches still lets water in.

Bob