Electrical Mc Cable Installation

Methods for installing mc cable electrical question.

Electrical mc cable installation.

In this episode we talk in depth about how to wire with mc cable what the uses permitted and uses not permitted are as well as securing and strapping and a. This new 2017 code language also allows the electrician to install mc cable on the underside of floor and ceiling joists assuming the electrician supports the cable at every provided joist. We wrote in an earlier blog about romex wiring and why it should be a replacement for knob and tube wiring and aluminum wiring for residences today kb electric llc will provide useful information on another type of wiring known as mc cable metal clad cable. Feeder mc cable installation application guide.

Tony a electrician from irvine california. 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. See more about electrical wiring for california. Uses and advantages of metal clad cable.

Check with your local building inspector before you start any electrical wiring and cable project and be sure to obtain required permits. All mc cables now being sold are made with ul listed 600 volt multi stranded 10 or 12 awg rhh rhw use 2 outdoor rated sunlight resistant cable. The 10 wire is rated at 54 amps max per nec in open air but we recommend no more than 30 amps for 12 wire and 45 amps for the 10 wire. This guide provides engineers and contractors with essential information on the basic applications selection and installation of feeder mc cables including riser mc high rise cable and pvc jacketed feeder mc cable.

The national electrical code nec and local building codes regulate the types of electrical wires and cable that can be used in specific electrical applications as well as the manner of installation. 600 volt cable constructions multiple of cable o d. When running mc cable inside the wall going from box to box does it need tied down. What is mc cable.

This is also new for 2017 as permission for this method of installation did not exist prior to the 2017 code cycle. Very good website very helpful. Type mc metal clad cables nec 300 24 nec recommended minimum bending radii a interlocked 7 b smooth sheath max diameter 0 750 inches 10 max diameter 1 500 inches 12 diameter larger than 1 500 inches 15 c shielded conductors 12 7 a diameter 1 0 inch or less 4.