What Type of Panel Is This?

[rives]

Here is a link to one. Note the number beside the 14,12 and 10 gauge wires - it refers to the fine print note at the bottom of the table that rolls back the allowable amperage for those conductors.

http://lugsdirect.com/WireCurrentAmpacitiesNEC-Table-301-16.htm

The NEC is about the least user friendly document on the face of the earth, and not well suited for usage by non-electricians. There are exceptions to damn near everything, and usually exceptions to the exceptions.

 

[Hammerhead]

I mgoing to start a new thread with this.. If Blaze could make it a sticky

 

[joe fresh]

It wouldn't be a bad thing to post that up in a new thread and make it a sticky just for reference purposes to prevent any further confusion on subjects like this which when it comes down to it. Requires valid information that has been gone over with fine tooth comb. Because electricity is dangerous and information given needs to be solid when helping others on a forum like this.

https://www.icmag.com/ic/showthread.php?t=117867

 

[rives]

I fixed the link, HH. The thread that Joe posted is a good one, if memory serves. I was trying to edit the last post when you were posting, but for some reason editing is hit or miss on my new laptop. Goodnight, folks.

 

[Hammerhead]

That thread says 6g 60a and 6g 50a. The link rives put up says 55a for 6g man you talk about confusing..

 

[Hammerhead]

I guess its between 50 and 60a for a 6g

 

[hammalamma]

Rives knows his shit, all his info is dead right. I did commercial electrical work for two years. He has said everything I would have. Everyone who is planning on doing their own electrical should get an Uglys' guide book, they are like ten bucks at home depot and answer all these questions and more.

 

[rives]

That thread says 6g 60a and 6g 50a. The link rives put up says 55a for 6g man you talk about confusing..

The insulation is the determining factor - the higher temperature that it is rated for, the higher the ampacity of a given wire size. TW is an older insulation that isn't capable of withstanding much heat and that is why it has a lower rating. THHN is a much newer, thermoplastic insulation with a mylar jacket. It is commonly used in industrial applications where groups of single-conductor wire is pulled into conduit, and it has a much higher temperature rating. However, the notes that I mentioned above over-rule the higher rating in the smaller gauge wire.