Power panel mounting

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SMB

SMB

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North Charleston, SC
Is it legal to "shoot" a panel to a concrete wall? I have panels that were shot using an anchoring device instead of the holes provided by the manufacturer. My issue is it cant be removed without destroying the anchor and/or panel back and then reinstalled. Is it a requirement to be able to remove a panel w/o destroying something?
 
If I may deviate from the rules for a moment and discuss personal things, my panel at home was done in this manner (shot directly to the wall). There is no space behind it and the panel has a slight deformation around the fastener. I asked the local code official about it since I am planning on making modifications that will need inspected. He said that I need not worry about it.
 
Not what i call quality install but it would likely save a little time. I do hope they got it nice and plum cause it is not easy to remove. It is an example of the type of work you received on the house. Good luck.
 
SMB said:
Is it legal to "shoot" a panel to a concrete wall? I have panels that were shot using an anchoring device instead of the holes provided by the manufacturer. My issue is it cant be removed without destroying the anchor and/or panel back and then reinstalled. Is it a requirement to be able to remove a panel w/o destroying something?
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The non-speculative answers to your questions are no and no.

However, if the anchor is "shot" in locations without the manufactured standoffs, and thus deform the backwall of the cabinet such that it is against the concrete, it would be a violation of 312.2, which requires a 1/4 spacing between cabinet and wall in damp or wet locations... and a concrete wall is generally considered at the very least a damp location.
 
SMB said:
Is it legal to "shoot" a panel to a concrete wall? I have panels that were shot using an anchoring device instead of the holes provided by the manufacturer. My issue is it cant be removed without destroying the anchor and/or panel back and then reinstalled. Is it a requirement to be able to remove a panel w/o destroying something?
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The only mounting method that I can think of that enclosure mounting that would not be allowed - is welding... As far as 'powder accuated' - the only reason I can see to remove it - is replacement. Which - if equiped with an angle grinder I see no issue.

The question to you would be - would a nail be any different?

But anyway I have shot panels to walls (steel too) - but I shoot a 1/4-20 pin. Then mount the panel to them - or to strut from them.
 
e57 said:
The only mounting method that I can think of that enclosure mounting that would not be allowed - is welding... As far as 'powder accuated' - the only reason I can see to remove it - is replacement. Which - if equiped with an angle grinder I see no issue.

The question to you would be - would a nail be any different?

But anyway I have shot panels to walls (steel too) - but I shoot a 1/4-20 pin. Then mount the panel to them - or to strut from them.
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A nail is a little more controlable and is within the manufacturer's literarture (Square D, at least) as being acceptable. I guess you could miss the nail 20 times and bang the H out of the panel, maybe then it isn't okay).

Do you have a cutsheet for this fastening system that shoots a 1/4-20 pin? I've never seen it but it sounds neat.

Thx
 
Smart $ said:
Not a cut sheet, but here's a link to the fasteners...

http://www.us.hilti.com/holus/page/module/product/prca_catnavigation.jsf?lang=en&nodeId=-61412
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And they have the guns to shoot them... But yeah - I had to go home and get mine the other day - I had some one spring some additional trapeze work on me - that it is great for pan deck. Fire it in and put a coupling on it. Cause i'm limited to a 1/4" pin... Just make sure the gun you choose, or pin you choose match up. Manufacturer doesn't matter - I use non-hilti pins all the time.
 
lakee911 said:
Thanks for the link. I wonder if my gun will shoot them....
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Look at you gun manual. But if the barrel takes 1/4" plastic sleeves - most likely it will - but adjustable load guns are better suited... And for any fastener IMO - I dont even know why they don't make them all that way????
 
lakee911 said:
Thanks for the link. I wonder if my gun will shoot them....
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FWIW IMO this is the best gun made for us.... ~$600 But if your in concrete and steel a lot - it's well worth it. And lately I have been working with people who are not into noise... But ironically, they would preffer me to shoot fast - rather than hammer drill anchors in all day long....
 
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