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Supporting NM Cable

334.30 Securing and Supporting. Nonmetallic-sheathed cable shall be supported and secured by staples, cable ties, straps, hangers, or similar fittings designed and installed so as not to damage the cable, at intervals not exceeding 1.4 m (41⁄2 ft) and within 300 mm (12 in.) of every outlet box, junction box, cabinet, or fitting. Flat cables shall not be stapled on edge.
 
ICE said:
334.30 Securing and Supporting. Nonmetallic-sheathed cable shall be supported and secured by staples, cable ties, straps, hangers, or similar fittings designed and installed so as not to damage the cable, at intervals not exceeding 1.4 m (41⁄2 ft) and within 300 mm (12 in.) of every outlet box, junction box, cabinet, or fitting. Flat cables shall not be stapled on edge.
Click to expand...

yes, that is what the code reads. These straps are hand made from other materials and not listed but,........nothing says they have to be so these are an approved method we accept.
 
jar546 said:
yes, that is what the code reads. These straps are hand made from other materials and not listed but,........nothing says they have to be so these are an approved method we accept.
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At first glance i thought it was neatly done, now im not sure. Looks like they used scraps of some plastic material. I would be tempted to tell them to use an approved cable clamp. There are lots to chose from.
And im wondering why the used foam or caulk where the nm goes through the wood blocking. Looks likes its for hanging cabinets, not fire blocking.
 
I know this thread is "supporting NM cable" but on inspection did you gig "em" for the straps going vertical over the wiring?
 
Thats some nice looking work.

Here is the rub

Notice all the 1900 boxes are on the exact same position as a mortar joint.
There is no control line snapped on the CBS.
Hoping for the best for that electrician after the floor guys level across and the tree killer set their base cabinets.
 
chris kennedy said:
Thats some nice looking work.

Here is the rub

Notice all the 1900 boxes are on the exact same position as a mortar joint.
There is no control line snapped on the CBS.
Hoping for the best for that electrician after the floor guys level across and the tree killer set their base cabinets.
Click to expand...

Maybe the mason is just that good.....
 
Horizontal Runs Through Holes and Notches. In other than vertical runs, cables installed in accordance with 300.4 shall be considered to be supported and secured where such support does not exceed 1.4-m (41⁄2-ft) intervals and the nonmetallic-sheathed cable is securely fastened in place by an approved means within 300 mm (12 in.) of each box, cabinet, conduit body, or other nonmetallic-sheathed cable termination.

I thought it worth pointing out that holes can count as a staple on horizontal runs......but not on vertical runs.
 
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