Seal Tight

[eager2learn]

I am currently working at a school terminating X-formers and disconnects and I was just wanted to know if I have to put grounding bushings on the seal tight connectors from the X-former to the disconnect because the raceway is sealed inside the rubber coating. My foreman told me that and I beg to differ. A code reference would be nice.

 

[code_compliant]

I believe your foreman is right.

You haven't completely described the application but I'd start with 250.90

 

[tkb]

...because the raceway is sealed inside the rubber coating.

The sealtite grounds to the fittings from the insert that threads into the steel flex under the rubber.

 

[brian john]

Eager 2 learn:

After 6 months in the trade I learned to NEVER argue code. Carry a book and research your issue BEST WAY TO LEARN. Not that the highly knowledgeable code guys here (and I am not one) aren't willing to help, but it is a better approach. No argument with the boss, and no crow for lunch next day and the knowledge is more likely to stick with you.

 

[eager2learn]

then that means that we are going to be using the raceway as a means of bonding to the grounding conductor which ties in back at X-former. If we were to bond the connector to the raceway i guess you would say that could be considerd overkill according to the N.E.C.