|
| ... i.e. does it specify size and number of nails to affix "deep" ceiling fan box to wooden rafter, allow/disallow powder-shot fasteners for attaching wet-loc box to concrete, etc.?
Are chemical anchors (i.e. epoxy, acrylic) ever allowed? Are there pullout-test stds.? Or is it just vague language, such as "must be securely attached"...? |
Follow-Up Postings:
|
- Posted by ronnatalie (My Page) on Mon, Mar 7, 11 at 12:18
| Vague is a harsh word. Non-specific is more like it. Article 314 says "rigidly and securely fastened in place." It says little about how that is accomplished as long as your fasteners don't protrude more than 1/4" inside the box. The extra stuff for ceiling fan boxes (that support the fan) has to be marked as being able to support a weight at least as much as the fan. If the box has any specific mounting requirements, then you are obliged to follow those. Your AHJ may have specific requirements that they chose to look for, but I've never seen one that get bent out of shape over powder-actuated fasteners vs. tapcons or the like. Nails are OK in shear, I wouldn't (even if it were allwoed) use them to support a box in tension. |
Please Note: Only registered members are able to post messages to this forum. If you are a member, please log in. If you aren't yet a member, join now!
Return to the Electrical Wiring Forum
Instructions
- You must be a registered member and logged in to post messages on our forums.
- Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review the contents and make changes.
- After posting your message, you may need to refresh the forum page in order to see it.
- It is illegal to post copyrighted material without the owner's consent.
- HTML codes are allowed in the message field only.
- No advertising is allowed in any of the forums.
- If you would like to practice posting or uploading photos, please visit our Test forum.
- If you need assistance, please Contact Us and we will be happy to help.