Feb 7, 2025 · For MC Cable, PI No. 2883-NFPA 70-2023 reads almost identical to the PI on NM cable, just with the name changed. You could still use tie wire if UL 2239 has standards for tie wire. You'll just need to get UL 2239 listed tie wire. I'll leave it to you to check UL 2239 on what it has to say on the topic. Cheers, Wayne

Oct 28, 2011 · AC cable typically has no ECG, just the bondstrip-and-cable armor. However, the armor of the AC cable can be used as an ECG. MC cable consists of an outer jacket of thin metal armor and is filled with individually insulated conductors which are contained in a jacket. MC cable has an ECG, but the armor isn't suitable for grounding.

Nov 19, 2024 · 1) You can use _any_ MC cable up to a maximum of 3C+ground #8 AWG. 2) You can use an MC cable classified under the 'through penetrating products' category. When I did a search for 'through penetrating products' I found datasheets for various firestop assemblies, and those datasheets specified the specific MC cable they were listed with.

Mar 21, 2003 · Re: AC vs. MC vs. MC Lite Spelling it out in a spec is the easy part. Sometimes chnages in contract occur without detailing each item, such as the type MC (or steel compression couplings vs cast). I was curious if Type MC automatically covered the steel aspect, or is no MC spec complete without a steel or aluminum choice.

Nov 14, 2024 · AC is armored cable made with paper individually wrapping the conductors and a thin aluminum bonding strip which with the armor serves as the EGC. BX is a slang name for AC. Metal Clad or MC cable is different. Regular MC has a green EGC, MC-ap has a #10 aluminum conductor in contact with the armor to create the EGC.

Mar 18, 2025 · In Article 392, section 392.22-(A)-1-(b) it states that "for cables #4/0 and smaller, the sum of the cross-sectional area of all cables shall not exceed the maximum allowable cable fill area in Column 1 of Table 392(A) for appropriate cable width". 24" wide tray (ventilated) is shown to be 28 sq. inches.

Sep 17, 2017 · I have seen MC and 3/8" flex supported by metal one hole clips that look similar to one EMT clips but smaller. I typically use everything from romex staples to tywraps with the eyelets. The T-75 staple gun with 7/8" staples holds well in lot of applications.

Nov 8, 2018 · Looking at code section 330.40 for MC cable, it says fittings used must be listed and identified not that they must be used unlike Section 320.40 for AC cables which is substantially different. I would think most plastic single gang boxes are listed for type NM or UF cable only, which would preclude running MC into one.

Sep 9, 2010 · I was taught that, in concealed work, for the most part running MC is more efficient than EMT. With MC you have both raceway and conductors installed in one shot. Say I was hypothetically quoted 100 feet of ? EMT @ almost thirty bucks Fittings (couplings, connectors, unistrut clips) came out...

Nov 9, 2020 · Conductors within Southwire Armorlite MC cable are THHN/THWN, so that tells me you're good for damp locations with the conductors. Just check the MC jacket. NEC states you can use MC in wet locations as long as it meets what the text says. NEC 330.10(A). What kind of connectors are you using which would not be acceptable?