What are MC Straps?
Cable straps used to securely mount MC and AC cable. MC/AC cable straps are for used in dry locations. Oversized screw hole makes fastener alignment quick and easy. All steel construction ensures mechanical protection for the raceway. Zinc electroplated provides corrosion-resistance.
What is code for strapping MC cable?
According to NEC Article 330.30, MC cable must be supported and secured at intervals of 6 feet or less (unless routed through a framing member) and cables containing four or fewer conductors sized no larger than 10 AWG must be secured within 12 inches of every termination.
How do you secure a MC cable?
Type MC cable must be supported and secured by staples, cable ties, straps, hangers, or similar fittings, designed and installed so as not to damage the cable. Type MC cable, with four or less conductors sized no larger than 10 AWG, must be secured within 12 in.
Is MC cable rated for outdoor use?
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.
Can I support MC with zip ties?
Yes, cable ties are permitted.
Can you use metal clad cable outdoors?
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. They can be installed in a cable tray or in any raceway. The cables can be installed as open runs or as an aerial cable on a messenger wire.
Can you use zip ties to strap MC cable?
Yes, cable ties are permitted. Section 330.30(A) provides the general requirements and permits cable ties.
Can you use J hooks to support MC cable?
Among them, J Hooks are a flexible, efficient and economical solution for support especially when cables are required to install in confined areas that cannot accommodate cable trays or raceways….What Are J Hooks Used for?
| Application Field | Cable Media Tyeps |
|---|---|
| Low voltage cabling | Power and control tray cable |
What is a clad cable?
A Metal Clad Cable, also referred to as MC Cable, is a corrosion-resistant metal cable containing insulated copper or aluminum connectors.
What are metal clad cables?
(NEC Article 330) – Metal Clad cables are assemblies of one or more insulated circuit conductors with or without optical fiber members enclosed in an armor of interlocking metal tape, or a smooth corrugated sheath. A plastic overall jacket can also be provided.
Can I use solid metal clad cable outside?
Can you use J hooks for MC cable?
What is the code for strapping Romex?
Romex Wiring Support, NEC 336-18: Stapled, in a manner that does not damagethe cable, within 12″ of electric boxes; every 4-1/2 ft. intervals, and clamped to box. Cables run through holes in studs, rafters of floor joists are considered supported at those points.
Where is metal clad cable used?
Type MC cables are widely used in 600 volt and MV power, lighting and fixture whip control applications. They are permitted for use on services, feeders and branch circuits for power, lighting, control and signaling circuits in accordance with Article 330 and 725 of the NEC.
What is metal-clad cable?
What Is Metal-Clad Cable? Metal-clad cable comes in several varieties, but the type you’ll find most commonly is three insulated wires (two circuit conductors and a green equipment grounding conductor) protected by a flexible armor usually made from aluminum. MC cable is identified by the gauge of the wire, not the diameter of the armor.
What kind of material does MC Cable come with?
Intermediate Feeder Size MC Cable comes with galvanized steel armor. This product features galvanized interlocking steel strip. Type MC Steel Metal Clad Cable – Constructed with galvanized interlocking strip steel armor. Constructed with interlocking aluminum strip armor without ColorSpec striping.
How far apart do cable straps need to be?
Install a strap within 12-in. of each box. All subsequent straps need to be within 6-ft. of each other. When you’re routing cables, be sure to avoid sharp bends that could damage the cable sheath or the conductors.
Can I use a plastic box for MC Cable?
Plastic or fiberglass boxes aren’t designed to be used with MC cable. Even if you’re able to rig up a connection to a plastic box, you will fail the electrical inspection. Make sure the metal box has knockout holes located where you need them, and don’t rely on the spurs on the bracket to hold the box in place—add a couple screws as well.