Receiving Helpdesk

is mc cable allowed in commercial buildings

by Renee Hauck Published 3 years ago Updated 3 years ago

Type MC cable

Power cable

A power cable is an assembly of one or more electrical conductors, usually held together with an overall sheath. The assembly is used for transmission of electrical power. Power cables may be installed as permanent wiring within buildings, buried in the ground, run overhead, or exposed.

is permitted for service entrances when installed in accordance with Sec. 230.43. (4) Installed outside of buildings. Click to see full answer. In this manner, can I use NM cable in a commercial building? It is permitted in residential construction because of cost consideration, but it's not a hazard.

MC Cable Permitted Uses
MC Cable, when listed and labeled for use, can be a wiring method in locations such as: Commercial, industrial, and residential/commercial buildings.
Mar 25, 2021

Full Answer

When is MC Cable not permitted to be used?

A. Type MC cable isn’t permitted to be used where: [330.12] (1) Subject to physical damage. (2) Exposed to the destructive corrosive conditions in (a) or (b) [below], unless the metallic sheath or armor is resistant to the conditions, or protected by material resistant to the conditions:

Where do you put MC Cable on a floor?

A. Exposed runs of Type MC cable must closely follow the surface of the building finish or running boards. Type MC cable installed on the bottom of floor or ceiling joists must be secured at every joist and not be subject to physical damage [Sec. 330.15].

What does the Code require when installing metal-clad cable in exposed work?

What does the Code require when installing metal-clad cable (Type MC) in exposed work? A. Exposed runs of Type MC cable must closely follow the surface of the building finish or running boards. Type MC cable installed on the bottom of floor or ceiling joists must be secured at every joist and not be subject to physical damage [Sec. 330.15].

What are the advantages of metal clad cable?

Advantages of Metal Clad Cable (Why Electricians Love This Stuff!) Many varieties useful for different applications (wet locations where corrosion can take place, direct burial, hospital settings, etc.) Indoor and outdoor use!

Can you use a sandbox in California?

Not true. You can use it in commercial buildings up to the third floor. Some localities may prohibit it, but "California" allows it.

Is there such a thing as a BX cable?

First, there is no such thing as BX. It is called armored cable (AC) and that is how you will find it in the NEC. Yes, it is commonly called 'BX' because it was originally manufactured by the Bronx (BX) cable company.

Can AC be used as EMT?

AC can be used the same way as EMT it's just the jacket is the ground. We dont see much of it here in south Florida.

Does lack of copper wire grounding conductor reduce safety?

Some feel the lack of copper wire grounding conductor reduces the safety.

Can you use a romex wire in California?

In California you can never use romex for any commercial wiring. Resi concealed only.

What is the average temperature of a TC?

The 250 deg. is the average of all TC?s and 325 deg. is spot temperature reading. The Finish

Is commercial setting residential?

They are talking commercial setting not residential.

Is NM cable conditional use?

If NM cables are installed in accessible attic space, then this is clearly a violation of conditional use as permitted by NEC 334.10 (3).

Can NM cables be installed in a commercial building?

NM cables are permitted to be installed in a Type V commercial building (for example), only if it is concealed in a stud/ceiling space (or any other space) with min 1/2" sheetrock or other finish material with equivalent 15-minute fire rating.

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