Feb 25, 2010 · A quote from a U.L. website concerning Nonmetallic-Sheathed Cables, UL 719 "Type NMC cable is for use in dry, moist, damp, and corrosive locations, and Type NM cable is for use in normally dry locations. Both types carry the suffix letter "-B" to designate the use of conductors with 90?C insulation." Might be handy stuff, if it actually exists.

Aug 2, 2020 · NMC (non-metallic cable) Romex would be considered NMC right? Isn't Romex a brand name, not a type? They were talking about this on YouTube but I'm not sure how to comment while they're livestreaming.

Apr 19, 2006 · Does the NEC prohibit the use of NM cable in liquidtight flexible nonmetallic conduit? An example would be using NM cable from a disconnect to an air conditioning unit.

Jan 26, 2016 · I would say the NEC allows NM cable where it is not exposed in buildings allowed to be Type III IV or V Type NM, Type NMC, and Type NMS cables shall be permitted to be used in the following:

Apr 23, 2018 · For range wire sizing, Romex NM, we have to use the 60 degree column of 316.15, correct ? Yes, from T310.15(B)(16). 334.80 Ampacity. The ampacity of Types NM, NMC, and NMS cable shall be determined in accordance with 310.15. The allowable ampacity shall not exceed that of a 60°C (140°F) rated...

Dec 4, 2007 · then says right under it FPN: types NM, NMC, and NMS cable identified by the markings NM-B, NMC-B, NMS-B. now for the purpose of de-rating type nm-b would i need to follow in accordance with 334.112 Conductor rating shall be rated at 90 degrees C (194F). Or do i refer to 334.80 where it states that "the ampacity of types NM, NMC, NMS cable shall be determined in accordiance with 310.15. THe ...

Dec 12, 2014 · As a specifying engineer, our company's spec does not include NM (or NM-B) for wiring. Our typical spec requires EMT, but in some cases allows MC. I've had a couple of multi-family residential projects lately where the owner, architect or contractor is asking why we're not allowing NM-B...

Aug 3, 2005 · (B) Type NMC. Type NMC cable shall be permitted as follows: (1) For both exposed and concealed work in dry, moist, damp, or corrosive locations, except as prohibited in 334.10 (3) (2) In outside and inside walls of masonry block or tile (3) In a shallow chase in masonry, concrete, or adobe protected against nails or screws by a steel plate at least 1.59 mm ( in.) thick and covered with plaster ...

May 12, 2021 · #8/3 NM-B wire is rated for 90°C temperature however the NEC current carrying capacity limits its rating based on 60°C. This is based on the typical 60°C rating for residential applications. My question is if I am using it on equipment that has terminal temperature ratings of 75°C or 90°C, am...

Jul 12, 2009 · The cable would have to be type NMC. This type of cable has a corrosion resistant jacket suitable for both exposed and concealed work in dry, moist, damp, or corrosive locations.