Apr 22, 2007 · Quick question, Is it permissible to pull THHN for an underground feed (the wires will be installed in pvc in the ground)? In a related question, when using expansion joints for …

Aug 2, 2024 · The plain THHN had a higher temperature rating, significant when the conductors carry close to their rated amperage or the conduit or a drilled hole is stuffed with wires close to …

Apr 5, 2019 · Such as THHN feeder wires for a sub-panel or some such. However, after looking in the code book, article 300.3 (A), states: single conductors specified in table 310.104 (A) shall …

Nov 15, 2018 · THHN is rated for 90 degree C and THWN is rated for 75 degree C but both of these ratings can be listed on the same wire. Just want to make sure I have this right, if …

Aug 14, 2024 · SIMpull THHN® Copper Wire 600 Volts. Copper Conductor. Thermoplastic Insulation/Nylon Sheath, Heat, Moisture, Gasoline and Oil Resistant II. All sizes rated both …

Mar 26, 2008 · I like to go from solid romex to stranded THHN (pigtails) to wire switches & receptacles. If I have several switches I loop the hot to each switch with a piece of THHN. I'm …

Apr 22, 2024 · Hey all, I was recently called upon to inspect some EV charger circuits at a car dealership installed by another contractor. They used #8 THHN on 50 amp breakers for some …

Jul 8, 2007 · For example, the load on an 8 AWG THHN, 90?C copper wire is limited to 40 amperes where connected to a disconnect switch with terminals rated at 60?C. This same 8 …

Jan 10, 2024 · I see NEC table 310.4 A list THHN for DAMP or dry locations but not for wet locations However home depot product description list their THHN for wet locations. I thought …

Mar 13, 2010 · Most every conduit around here fills with water. We have always pulled in THHN/THWN wire, is that the best for longevity / safety?