[Wireless]

In a standard 4s box or similar would enlarging a 1/2" KO to 3/4" violate the listing?

 

[480sparky]

No. That's what knockout sets and unibits are for.

 

[ponyboy]

No way. Who would honestly worry about that

 

[btharmy]

No way. Who would honestly worry about that

I have a feeling we will soon find out.

It's not me. I have done it without a second thought.

 

[wildleg]

the knockouts are their for convenience, you can buy 4 squares with different configurations, or no knockouts at all There is no violation.

Cabinets that are UL listed may have specific entry locations and size restrictions, explosion proof enclosures have specific entry and hub sizes, and often prohibit field modifications, and other enclosures may have restrictions in their listing or directions, so it's always good to check.

 

[Going_Commando]

No way. Who would honestly worry about that

So true.

 

[micromind]

Given the current state of required blind compliance with written regulations prevalent in the USSA, I'd say that any form of alteration to a finished product that's UL listed would violate the listing.

Even if one is expected to modify the product, the listing would still be void.

 

[Wireless]

Exactly. Working in a project where all material has to be approved etc. if I can't prove I can do it I have to assume it's not allowed.

 

[480sparky]

Given the current state of required blind compliance with written regulations prevalent in the USSA, I'd say that any form of alteration to a finished product that's UL listed would violate the listing.

Even if one is expected to modify the product, the listing would still be void.

Since there's nothing in the instructions for THHN about cutting it, doing so would violate it's listing then?

 

[micromind]

Since there's nothing in the instructions for THHN about cutting it, doing so would violate it's listing then?

It wouldn't surprise me......lol.

 

[micromind]

Exactly. Working in a project where all material has to be approved etc. if I can't prove I can do it I have to assume it's not allowed.

I've actually had to replace boxes/cans/etc. on government jobs because they were not listed for conduit entry anywhere but the factory KOs.

 

[480sparky]

I've actually had to replace boxes/cans/etc. on government jobs because they were not listed for conduit entry anywhere but the factory KOs.

Let's not confuse job specs with NEC and UL requirements.

 

[btharmy]

I've actually had to replace boxes/cans/etc. on government jobs because they were not listed for conduit entry anywhere but the factory KOs.

So, order j boxes with no ko's. Then you can knock it out where ever you want. Or, some stupid bureaucrat will tell you "you can't punch holes in that box, it will violate its listing". How are you supposed to use it then?

 

[glen1971]

So, order j boxes with no ko's. Then you can knock it out where ever you want. Or, some stupid bureaucrat will tell you "you can't punch holes in that box, it will violate its listing". How are you supposed to use it then?

I forget where I was working but some putz actally told me that. When I did a double take and asked him WTF are you talking about?? He said it would violate the approval rating.. I said, well so would leaving the door open to put the wires in that way... Never seen it or heard of it since..

 

[micromind]

So, order j boxes with no ko's. Then you can knock it out where ever you want. Or, some stupid bureaucrat will tell you "you can't punch holes in that box, it will violate its listing". How are you supposed to use it then?

Remember, these are well-trained government minions here; they don't care if something is possible or not, they care only about ramming rules on us underlings in order to justify their jobs.

I usually order cans with no KOs, it's just about as easy to make my own than to line up pipe to the factory ones.

Just another of the many violations I commit every day........

 

[360max]

No way. Who would honestly worry about that

Cletis:whistling2:

 

[Wireless]

No one is arguing the stupidity! However I ain't fighting a lost battle. Jobs have been turned upside for smaller things.
The boxes are existing, otherwise I would just go with the right size.