Table of Contents
- 1 Can I run MC cable exposed?
- 2 Where can you use MC cable?
- 3 How far can you run MC cable?
- 4 Can you run MC wire outside?
- 5 Where is MC cable not allowed?
- 6 When can I use MC cable?
- 7 Can you run Romex in a condo?
- 8 Can you use zip ties to strap MC cable?
- 9 Can a type MC Cable be installed outside?
- 10 What kind of cable is a MC Cable?
- 11 Where is type MC Cable in the NEC?
Can I run MC cable exposed?
Section 330.15 states: Exposed runs of cable, except as provided in 300.11(A), shall closely follow the surface of the building finish or running boards. Exposed runs shall also be permitted to be installed on the underside of joists where supported at each joist and located so as not to be subject to physical damage.
Where can you use MC cable?
Type MC cables may be installed indoors or outdoors, in wet or dry locations, hazardous locations (Class I, Division I), in cable tray, as aerial cable on a messenger, in any approved raceway, direct burial (where identified), or encased in concrete (where identified).
Can you run Romex in a church?
You definitely need to be in touch with YOUR AHJ. Without a doubt, not something you want to talk about after you do it. Also, the AHJ in this area does not permit ROMEX or wiring smaller than 12, period in any commercial construction, including churches.
How far can you run MC cable?
5b) For Type MC cable in other than vertical runs through holes or notches in framing members where the distance between members does not exceed 6 feet. Cables containing four or fewer conductors sized no larger than AWG 10 must be secured within 12 inches of each box, cabinet, fitting or other cable termination.
Can you run MC wire outside?
These cables can be installed either indoors or outdoors and in exposed and concealed locations. They can be direct buried, where identified for such use. Type MC cable with a nonmetallic jacket can also be used in a wet location.
Can you zip tie MC cable?
Yes, cable ties are permitted.
Where is MC cable not allowed?
330 of the NEC mentions that MC cable can be used indoor and outdoor but does not make mention of it being allowed or disallowed for use in damp environments. It does state that when used in wet locations there must be a corrosion-resistant jacket to protect the conductors.
When can I use MC cable?
Type MC cable can be used for service-entrance conductors, feeders and branch circuits in many applications. Section 330.10 of the National Electrical Code includes the general uses permitted for Type MC cable. Many other uses are permitted in other articles for specific applications.
Can Romex be exposed in commercial buildings?
James, you answered your own question. Romex is allowed in any building that is type III, IV, or V. It does not matter if the structure is residential or commercial.
Can you run Romex in a condo?
Metal conduit isn’t required just because you have metal studs. There are plastic bushings me that you can put in the metal studs that you can run Romex. However, local codes may require the use of conduit and condos and other multiunit buildings.
Can you use zip ties to strap MC cable?
Yes, cable ties are permitted. It is also important to note that, where cable ties are used in other spaces used for environmental air (for example, the space above a hung ceiling used for return air), they must be also listed as having low smoke and heat-release properties as required in Section 300.22(C).
Can you use MC in damp locations?
General use MC cables cannot be used in wet locations but there are some types of specialty MC cables that can. The most common is the PVC coated, sunlight resistant, direct burial listed MC cable in the image.
Can a type MC Cable be installed outside?
Type MC Cable without an outside nonmetallic jacket can be installed in an “other space used for environmental air” in accordance with Section 300.22 (C). These cables can be installed either indoors or outdoors and in exposed and concealed locations.
What kind of cable is a MC Cable?
What is MC Cable? MC cable (metal clad cable) is a type of cable that typically contains three insulated conductors (wires) encased in a smooth tube, ridged tube, or interlocking metal. The protective outer interlocking metal is flexible, allowing for easy bending.
Can a type MC Cable be used as a feeder?
Where not subject to physical abuse, Type MC Cables are permitted to be installed as service, feeder, and branch circuit cables for lighting, power, control, and signaling circuits. Type MC Cable without an outside nonmetallic jacket can be installed in an “other space used for environmental air” in accordance with Section 300.22 (C).
Where is type MC Cable in the NEC?
In the 1999 NEC, Article 334 covered Type MC Cable; however, in the 2002 NEC, Type MC Cable has been relocated into Article 330. Until you become familiar with the new location in the NEC, it may take some searching to find it.