New answers tagged

8 votes

What types of conduit would be appropriate to extend a circuit inside a storage bench?

I'd use the blank cover with the knockout and a 90 degree MC connector (shown below) and run the MC stapling it to the edge around the storage bench. Then terminate it in a metal old work box. Connect ...
user avatar
  • 55.4k
2 votes

Marking 3 circuits in one conduit where 1 circuit originates in a different panel

You are not allowed to re-designate individual wires into a different category (unless the wires are #4 or larger). neutrals must be natively white or gray jacket grounds must be natively green, ...
user avatar
2 votes

Marking 3 circuits in one conduit where 1 circuit originates in a different panel

Regarding marking the circuits of the wires, it can't hurt, and could help you in the future, or the next person if they choose to believe your markings. There are many methods available to mark wires ...
user avatar
  • 1,411
2 votes

Replacing wire in EMT in old house; should it be replaced with THHN/THWN?

Trying to choke NM cable down into EMT conduit is a "newbie idea" which I can understand if you are a rank novice to electrical, and NM is the only kind of cable you know. Romex is not ...
user avatar
2 votes
Accepted

Replacing wire in EMT in old house; should it be replaced with THHN/THWN?

The cloth covered wires are an issue, no doubt. Still, if the conduit is in good shape, there is no point in pulling CABLE (as in Romex) vs. individual wires (THHN/THWN). On the runs you want to ...
user avatar
4 votes

Would knob and tube be used with modern conduit wiring?

I will answer some of your questions. A house can be partially rewired. A common example is a typical two story house with an unfinished basement and an old fuse box or old panel. You can upgrade ...
user avatar
  • 18k
1 vote

PVC electrical conduit vs. PVC for plumbing

Actually, it's about fire The people who write the Code want you to have enough time to escape your house before you are incapacitated by toxic fumes. "Smoke inhalation", meaning ...
user avatar
1 vote

PVC electrical conduit vs. PVC for plumbing

Plumbing PVC and Electrical Conduit PVC are manufactured and tested for different applications. They are both "PVC", but additives adapt them for higher temperature & pressure ratings ...
user avatar
  • 10.3k
0 votes

Do I need PVC expansion coupling with a 130F temp range but very short run?

They make mini-me expansion joints for this As it turns out, Carlon makes shorter versions of the normal expansion fittings for space-constrained apps like yours. Your 2" application uses an ...
user avatar
0 votes

Do I need PVC expansion coupling with a 130F temp range but very short run?

My first take on that is "use metal conduit". I don't quite understand why metal is so disliked. It does a number of things much better: No gluing, so easy to rework if mistakes are made, ...
user avatar
7 votes
Accepted

Do I need PVC expansion coupling with a 130F temp range but very short run?

Practically speaking, for purposes of expansion, you don't have a 64 inch run. You have a 36 inch run and a 28 inch run, and the 90 degree corner between them means the motion of one will not be ...
user avatar
  • 137k
3 votes
Accepted

Conduit fill for (slotted) wire ducts?

Panduit classifies this as raceways according to the image, taken from the catalog. Covered in NFPA 79 (13.5). Raceways are defined earlier in the document to include wireways. ETA: As @ThreePhaseEel ...
user avatar
2 votes

Pulling wire through Sealtight/LiquidTight?

I use fish tapes for long flex pulls. Tapes make the job easier. As it is a snug fill it probably a bit tough for a novice to do a push but if you tape the ends together tightly and do not tangle the ...
user avatar
  • 98.3k
12 votes

Does wiring under a waterproof deck need conduit?

Be more concerned about rodents nibbling. They love the shelter of decking, and even if not living there, will visit for the odd meal - of plastic. Conduit will supply the necessary protection from ...
user avatar
  • 3,058
1 vote

Pulling wire through Sealtight/LiquidTight?

Hollow braided rope, by preference - usually polypropylene, but just because that's the most common hollow braided rope around. Vacuum it in, or vacuum a string in and pull the rope in with the string....
user avatar
  • 137k
14 votes

Does wiring under a waterproof deck need conduit?

If this is outside in any fashion, it's considered a wet zone, even if the area is totally dry. A deck with Trex is no different from a standard wood deck in that regard. Generally speaking, conduit ...
user avatar
  • 20k
12 votes

Does wiring under a waterproof deck need conduit?

Wire is not allowed without conduit. All exterior conduit is defined as wet. All wire in exterior conduit must be wet-rated. It usually is wet, from condensate if nothing else. A "waterproof deck&...
user avatar
  • 137k

Top 50 recent answers are included