RW or TW wire? - Electrician Talk
2011年8月6日 · by tw do you mean tew wire (same as mtw wire in usa). i use that a lot in control panels, the cable is a lot more flexible than rw Save Share Reply Quote Like
submersible pump wire - Electrician Talk
2007年7月27日 · Stick to TW or THW solid wire. It is the standard for wiring well pumps and don't try to reinvent the wheel. I have pulled my pump (492') in the middle of the winter -10 F because of a broken wire and it sucks big time. The insulation on the wire was abraded to …
#6 NM ampacity - wrong all these years? - Electrician Talk
2021年4月29日 · 334.80. Ampacity. The second sentence requires that NM, NMS, and NMC cables always have their conductors applied to the ampacity of Type” “TW wire—that is, the 60°C ampacity from Table 310.15(B)(16). However, the insulation on the conductors must be rated at …
RW or TW wire? | Page 2 | Electrician Talk
2010年6月27日 · TEW is used in control panels. It cannot be pulled through conduit. It is not oil or gasoline resistant. I avoid it like the plague. I run THHN in all of my panels. I've had to re-wire panels in plastics plants because the insulation had 'melted' off of the TEW due to the chemicals in the air. The T90 you buy in Canada is dual-rated.
Linesman vs wire strippers - Electrician Talk
2020年11月20日 · THHN has thinner and harder insulation than TW, so the use of wire strippers became more common. The aggravating thing about TW was that it normally came in a cardboard box similar to Romex. TW became mostly obsolete as it was only rated 60C and the code began requiring 90C wire in florescent lighting, so no real reason to stock two different ...
IDEAL pushfit connectors & TW wire. - Electrician Talk
2015年8月27日 · IDEAL pushfit connectors & TW wire. 1045 Views 5 Replies 3 Participants Last post by MDShunk, Aug 27, ...
Wiring method for area with hydrochloric acid fumes
2015年6月23日 · Even type TW in the original lighting conduits were just fine after over 40 years directly over plating baths. The EMT it ran in was damn near non-existent, but the wire was fine. The only wire that suffers in high acid vapor environments we ever had trouble with was the actual electrode conductors in proximity to the baths, but they're a semi ...
20kw Furnace wire size and type - Electrician Talk
2023年12月11日 · You’ll have to size your conductor for your breaker. Only assuming you’re using 240v because 20 000/240=83.
Conductor Temperature Ratings - Electrician Talk
2012年1月27日 · Look up base ampacity for insulation type in appropriate column of Table 310.15(B)(16). Apply correction factor for ambient temperature (if applicable) from Table 310.15(B)(2)(a). If installed on a rooftop exposed to sunlight, factor in appropriate temperature adder per Table 310.15(B)(3)(c).
Wire type for corrosive environment? - Electrician Talk
2021年4月3日 · This is kind of a Grey area right now that none of the manufactures are complying with. 680.14 classifies that area as a corrosive environment. It states that all wiring methods must be rated for the environment. They only thing they specifically list are the conduit types that are approved. I use THHN wire.