Is MC cable suitable for outdoor use

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.

Is MC waterproof?

STAYING SAFE WITH THICK BITUMINOUS COATINGS FROM MC With MC’s thick bituminous coatings, you are always on the safe side. They adapt perfectly to the substrate or soil and, with polymer-modified bitumen, even protrusions, light shafts and abutments can be waterproofed – quickly, simply and reliably.

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.

Can you use MC cable underground?

The Metal Clad Cable includes a grounding wire and can be used in outdoor applications. It can go into concealed and unconcealed spaces, and even buried underground. The National Electric Code (NEC), it is also approves it for difficult locations that involve exposure to moisture and hazardous elements.

Can MC cable be encased in concrete?

Can I install Type MC in concrete or against concrete or mortar? A. Yes, if the cable is listed for the application. Type MC cable is available with an outer PVC jacket and is permitted to be installed in parking decks, concrete pours and for direct earth burial if it is identified for such use.

Does MC cable need conduit?

MC cable can be installed underground as long as it is run through a conduit to prevent decay. For above-ground applications, MC cable can be installed without a conduit.

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).

Is MC cable considered flexible metal conduit?

Flexible metal conduit (FMC) is commonly called “Greenfield.” The main difference between MC cable and FMC is that FMC doesn’t have the insulated wires pre-installed; you have to pull them through instead. … It also allows you to add wires in the future, something you can’t do with MC cable.

How deep should MC cable be buried?

Running underground cables in metal conduits approved for buried cables is the most expensive method, but also the one requiring the least digging. In general, bury metal conduits at least 6 inches below the soil surface. You may also run them at a depth of 4 inches under a 4-inch concrete slab.

How long can you run MC cable?

of every outlet box, junction box, cabinet, or fitting and at intervals not exceeding 6 ft. Type MC cable must be supported at intervals not exceeding 6 ft. Cables installed horizontally through wooden or metal framing members are considered secured and supported where such support doesn’t exceed 6 ft intervals.

Article first time published on

Can you use MC cable in a damp location?

PVC coated, sunlight resistant, direct burial rated MC cable can be used in a wet location. … 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 MC cables be in conduit?

Type MC armored cable can be installed in cable tray, racks, hangers, or as a cost-effective replacement for conduit and wire where specified per the National Electrical Code (NEC).

Can you pull MC through conduit?

Although the Hazardous Locations section of NEC Chapter 5 requires threaded rigid conduit (RMC) or threaded steel intermediate conduit (IMC) for the real hardcore hazardous (classified) locations, MC cable is allowed in some installations with some listing restrictions.

How far does MC have to be supported?

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.

Is MC cable and armored cable?

MC cable is easier to remember because it’s an abbreviation for “metal clad” or “metallic-sheathed cable.” … Both are essentially just names for armored cable. When fiber is armored, it has a conductive jacket because the material is made from metal, usually aluminum or steel.

What is the difference between AC and MC cable?

The biggest difference between the two cable systems is that MC has full size ground wire while AC uses a combination of the jacket and a thin bonding strip or wire to function as the equipment ground. … This type of MC Cable will have a continuous PVC outer jacket.

Can you use Armoured cable outside?

Armoured cables and cables having an earthed metal sheath suitable for use as a protective conductor may be buried directly in the ground without further protection, except against corrosion, which may be negated by the provision of a plastic covering. Surface fixed cables may be fixed to permanent structures.

Can I run Armoured cable above ground?

The cable can be run above ground, so long as it is kept away from anything that may damage the wire. … To achieve this, and stop rodents from destroying the wire, install it at height with cleats. If you’ll be running the cable underground then you’ll need to lift the floor to make enough space and depth.

What type of wire is in MC cable?

MC cable contains conductors from 18 AWG through 2000 kcmil for copper and 12 AWG through 2000 kcmil for aluminum. Typical branch circuit Type MC cables have copper conductors with THHN, THHN/THWN or XHHW insulation and are suitable for circuits up to 600 volts.

What type of wire should be used outdoors?

Exposed or buried wiring must be listed for its application. (Type UF cable is the most commonly used nonmetallic cable for residential outdoor wiring runs.) UF cable can be direct buried (without conduit) with a minimum of 24 inches of cover.

Does outdoor wiring need to be in conduit?

Generally speaking, yes, outdoor wiring needs to be in conduit to protect it from physical damage. Type UF cable needs conduit when exposed, no need for conduit on the buried sections.

What size wire do I need for a 500 foot run?

500 Feet – a 120-volt, 20 amp circuit would require 1/0 AWG wire. A 240 volt, 30 amp circuit would require 3/3 AWG wire.

Can MC cable be painted?

The quick answer is “yes,” but let’s cover some of what you’ll need to know first. Painting the armor does not violate the National Electric Code (NEC), however, this process can be time consuming and also create more cleanup on the job-site utilizing pre-painted armor saves time and labor.

What is the purpose of hospital grade MC cable?

MC Luminary® HCF® is a hospital grade cable for patient care areas for LED and Fluorescent dimming, utilizing redundant ground per NEC 517.13.

Can MC cable be exposed in garage?

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. … They can be installed in a cable tray or in any raceway.

Can you strap MC with zip ties?

Are cable ties (or “Ty-Raps”) allowed for supporting Type MC cable in a ceiling? … Yes, cable ties are permitted. Section 330.30(A) provides the general requirements and permits cable ties.

Does MC cable required anti Short bushings?

Anti-short bushings are not required for Type MC cable in accordance with the listing for the product. … NEMA supports the uniform adoption and enforcement of the NEC and recommends that local Authorities Having Jurisdiction follow the requirements of NEC Section 330.40, Boxes and Fittings for MC Cable.

What wire is Cannot be used in wet locations?

As an example, two of the most common types of wire used in residential projects are THHN and THWN. THHN is thermoplastic, highly heat-resistant (up to 90 degrees C.), and nylon-jacketed. It is not suitable for wet locations.

What wire is rated for wet locations?

If you require wiring for wet locations, you must use THWN wire. It’s important to note that now many wires in the market are dual rated both THHN and THWN, which means the wire can be used in dry, damp, or wet locations. THHN wire is rated for high heat: it can be found with insulation rating as high as 90°C or 194°F.

What is considered wet location?

Wet Locations: A location in which water or other liquid can drip, splash, or flow on or against electrical equipment. A wet location luminaire shall be constructed to prevent the accumulation of water on live parts, electrical components, or conductors not identified for use in contact with water.