What is the point to a gutter box for NM? I've never seen this before, and how are the conductors ran? Is it just a gutter box with NM clamps on top with all conductors running through a chase nipple and terminating at the panel (from what I can see)? Seems clean, especially if you have a decent sized panel with lots of circuits.
Do the coiled feeders at top create an additional magnetic "choke effect"?
Nope, they're what I call "burn loops" in other words, an extra length of wire in case a lug burns out, so you don't (might not) have to replace the feeder.
And in some cases, making a loop makes it easier to get the conductor into the lug as well.
Thanks for that info. I had always done that for that reason, but an electrician had told me that it was better to bring them straight in. It is nice to hear that there is nothing wrong with that.
I'll never understand why people make that loop in the feeder before tightening it to the lugs. I never do that. Even on a 200 amp MB Panel there's really no need to do it, copper or aluminum.
As far as the gutter is concerned, I don't like the big ole chase nipple that I hope was used. I really see no reason why that splice box was needed to begin with.
Nope, they're what I call "burn loops" in other words, an extra length of wire in case a lug burns out, so you don't (might not) have to replace the feeder.
And in some cases, making a loop makes it easier to get the conductor into the lug as well.
Like most things on installs, some people swear by 'em, some people swear at them!
![[Linked Image]](https://www.electrical-contractor.net/ubb/smile.gif)
in other words, an extra length of wire in case a lug burns out, so you don't (might not) have to replace the feeder.
