Protector on Bushing?

[CuriousHomeInspector]

See image above for reference.

It is my understanding that whether there is conduit installed or not, that any time a 4 AWG wire or larger goes through a connector such as this there is supposed to be a plastic protective bushing installed unless the connector is designed to offer equal protection and is listed for such.

Can I get confirmation on this? I'm getting some push back saying that no bushing/protector is required.

I do not think the bonding wire for the CSST that is passing through the same opening is a problem, but if it is let me know.

Thank you in advance.

 

[kwired]

See image above for reference.

It is my understanding that whether there is conduit installed or not, that any time a 4 AWG wire or larger goes through a connector such as this there is supposed to be a plastic protective bushing installed unless the connector is designed to offer equal protection and is listed for such.

Can I get confirmation on this? I'm getting some push back saying that no bushing/protector is required.

I do not think the bonding wire for the CSST that is passing through the same opening is a problem, but if it is let me know.

Thank you in advance.

Have to look to get you a code section - but pretty certain that bushing rule only applies to raceway wiring methods - your picture is a cable method and cable connector.

Though I personally don't have a problem with the extra ground conductor in the connector - I don't think your fitting will be listed for that combination and most inspectors would reject it on 110.3(B).

ADD: the section you are looking for is 300.4(G) and I still stand behind what I mentioned earlier.

That section starts off with "Where raceways contain 4 AWG or larger insulated circuit conductors..."

 

[CuriousHomeInspector]

Have to look to get you a code section - but pretty certain that bushing rule only applies to raceway wiring methods - your picture is a cable method and cable connector.

Though I personally don't have a problem with the extra ground conductor in the connector - I don't think your fitting will be listed for that combination and most inspectors would reject it on 110.3(B).

ADD: the section you are looking for is 300.4(G) and I still stand behind what I mentioned earlier.

That section starts off with "Where raceways contain 4 AWG or larger insulated circuit conductors..."

My question is then with the definition of a raceway being "An enclosed channel of metallic or nonmetallic materials designed expressly for holding wires, cables, or bus-bars, with additional functions as permitted in this Code."

Is the clamp at the panel entry not an enclosed channel for holding cables?

 

[kwired]

My question is then with the definition of a raceway being "An enclosed channel of metallic or nonmetallic materials designed expressly for holding wires, cables, or bus-bars, with additional functions as permitted in this Code."

Is the clamp at the panel entry not an enclosed channel for holding cables?

Yes it is, but is not a raceway or raceway fitting - it is a cable fitting. Raceways you have the option of installing any conductor (that will fit per fill requirements) you want. A cable assembly has fixed conductors within it.

Also see the informational note after that definition (in 2014 NEC anyway) - raceways are identified within specific articles definitions

SE cable, which is what you appear to have there, is not a raceway.

 

[infinity]

SE cable clamps are not raceways so no bushing is required. The green conductor through there is not code compliant.