There are a number of changes in the 2002 national electrical code nec regarding metal clad type mc cable that should be reviewed before your next electrical project in the 1999 nec article 334 covered type mc cable.
Pvc coated mc cable nec.
1 2 nec articles 501 502 503 530 galvanized steel armor with pvc jacket.
The most common is the pvc coated sunlight resistant direct burial listed mc cable in the image.
Previous wording did not require the corrosion resistant jacket as a prerequisite to use the 3 conditions.
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2 and class iii div.
This cable is great for signal circuits in wet dirty or oily locations can be buried directly in earth or concrete surface mounted or trenched for use in parking deck or parking lot applications golf courses docks swimming pool motors and many more.
Jacketed metal clad cable and teck cable metal clad cable type mc ref.
Sep 13 2007 2 al long as it s identified for the use.
Also used in continuous runs to outdoor or underground swimming pool motors pumps and related equipment per nec 680 fished exposed or concealed cable trays direct sunlight and hazardous locations up to class i ii div.
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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.
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Armorlite type mc pvc jacketed neutral per phase cable view pdf.
I never seen or should i say i never noticed mc be used outside like this.
I checked the nec thinking that i would find something prohibiting such use.
Nec article 334 metal clad cable type mc is a factory assembly of one or more conductors each individually insulated and enclosed in a metallic sheath of interlocking tape or a smooth or corrugated tube metal clad cable type mc is rated for use up to 5 000 volts.
I noticed an install done today where mc cable was used outside under a canvas awning to supply fluorescent strip fixtures on a store front.
The revised 2014 code language makes it clear that a corrosion resistant jacket must be present over the cable and then the 3 conditions apply.
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I would like to use pvc coated mc cable imbedded in concrete in a 2 story residential application for branch circuits for lighting and power.
Are their any nec restriction for this application.