Do holes within 12" support MC?
- Thread starter wawireguy
- Start date
- Status
- Location
- Chapel Hill, NC
- Occupation
- Retired Electrical Contractor
IMO, the holes support the wire but they do not secure it. I would add a staple but it seems to me to be unnecessary.
- Occupation
- Licensed Electrician
Use one of these http://www.erico.com/products/CADDYcfcCOJimCbleSpprt.asp.
kwired
Electron manager
- Location
- NE Nebraska
Even each raceway article allows support run through bored holes in framing members but still requires it to be 'securely fastened' within 3 feet of termination point (1 foot for most flexible raceways).
This may allow for some judgement to come into play of what is 'securely fastened'. A 2 inch hole with a 1/2 inch cable or raceway through it may be obvious. What about a 1/2 EMT through a 3/4 hole? It may fit tighter than an actual 1/2 EMT strap fits.
This may allow for some judgement to come into play of what is 'securely fastened'. A 2 inch hole with a 1/2 inch cable or raceway through it may be obvious. What about a 1/2 EMT through a 3/4 hole? It may fit tighter than an actual 1/2 EMT strap fits.
- Location
- Chapel Hill, NC
- Occupation
- Retired Electrical Contractor
I believe the idea behind this rule is to insure that the cable does not move around to where it can get hit by a sheetrock screw or something. It would seem that if the hole were less than 12" from the box the chances of the cable moving much is pretty small. It would be an AHJ call.
kwired
Electron manager
- Location
- NE Nebraska
But the thing is the AHJ may let it go with MC cable, yet will tell you you must secure the exact same thing if it is NM cable. Both have the same secure/support rules from box to first support except for when you have a 1 gang box with NM and there is no clamp in the box then you have the 8 inch securing requirement.
- Location
- Simi Valley, CA
Support and secure are two different words. My rule is a strap is required.
- Status