Mc cable is considered supported when run through metal or wooden framing members.
Mc cable support spacing.
In order to be labeled for division 1 hazardous locations type mc hl by ul the c l x cables must meet the following criteria.
In the 1999 nec article 334 covered type mc cable.
Use to support non metallic and metal clad cable to wood or metal studs.
Nvent caddy mac2 snap in cable support for mc ac cable and flexible conduit snap in support mc ac cable flexible conduit metal or wood stud and up to 1 8 inch flange standard packaging quantity.
In length from the last point of cable support to the point of connection to a luminaire or other.
This standard mandates performance tests more stringent than those required for type mc cable.
Mc cable must be supported every 6 ft.
Until you become familiar with the new location in the nec it may take some searching to find it.
These cable supports offer a time saving optional re entry design.
Cable and cable sealing fittings for hazardous classified locations is the industry standard for this listing.
Additional wedge type supports shall be permitted to relieve the strain on the equipment terminals caused by expansion of the cable under load.
Cable support spacing.
Secure non metallic and metal clad cable to wood or metal studs with the caddy 9 in.
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.
The above supports must be located at a maximum distance of 1 22m 48 inches in both the horizontal and vertical orientations.
However in the 2002 nec type mc cable has been relocated into article 330.
Mc cables may be unsupported when 1 fished through concealed spaces in finished buildings 2 when not more than 6 ft.
The versatile z shaped design of the b line series conduit trapeze support allows for quicker installation and support of multiple sizes of conduit mc ac cable cable tray and other accessories such as electrical boxes.
Use a ulc listed brass stainless steel or nickel mc connector suitable for a corrugated copper sheath suggested sources.
American connector per fit type wt wse.
The solution installs up to 50 quicker than traditional strut trapeze and the conduit holes automatically align conduits across the trapeze.
Nonmetallic sheathed cable shall be supported and secured by staples.
Cable ties listed and identified for securement and support.
1 fished through concealed spaces in finished buildings or structures where support is impracticable or 2 not more than 6 ft long from the last point of cable support to the point of connection to luminaires or other electrical equipment within an accessible ceiling.
Or straps hangers or similar fittings designed and installed so as not to damage the cable at intervals not exceeding 1 4 m 4 ft and within 300 mm 12 in of every cable entry into enclosures such as outlet.
B fire rated cables and conductors.
