One hole straps, up or down?

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One hole straps, up or down?

  • Up (Mounting hole above conduit)

    Votes: 25 16.0%

  • Down (Mounting hole below conduit)

    Votes: 63 40.4%

  • Alternate them

    Votes: 15 9.6%

  • Whatever looks good at the time.

    Votes: 29 18.6%

  • Never worried about it and will not start now.

    Votes: 24 15.4%
  • Total voters
    156
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peter d

peter d

Senior Member
Location
New England
LarryFine said:
Agreed. I've always wondered whether racks bent like that are done by eye (doubtful) or using some kind of tables (likely).

Where does one find such info?
Click to expand...

I'll bet another steak dinner that bending pipe that precisely and repeatably is impossible simply done by eye. Or for you, a 5 Guys lunch. ;)
 
bradleyelectric

bradleyelectric

Senior Member
Location
forest hill, md
The right way is with the mounting hole below the conduit and the level on top. That is unless the level has to be on bottom to make it easier to see. If there is more than 1 conduit and they are to close together to have both mounting holes down, spread them apart enough so this is no longer the case. If that is not possible than and only than is it permissible to have the mounting hole up. That is unless it would really look better up.
 
O

ohm

Senior Member
Location
Birmingham, AL
bradleyelectric said:
The right way is with the mounting hole below the conduit and the level on top. That is unless the level has to be on bottom to make it easier to see. If there is more than 1 conduit and they are to close together to have both mounting holes down, spread them apart enough so this is no longer the case. If that is not possible than and only than is it permissible to have the mounting hole up. That is unless it would really look better up.
Click to expand...

I'm with you 100%...I think.
 
steelersman

steelersman

Senior Member
Location
Lake Ridge, VA
bradleyelectric said:
The right way is with the mounting hole below the conduit and the level on top. That is unless the level has to be on bottom to make it easier to see. If there is more than 1 conduit and they are to close together to have both mounting holes down, spread them apart enough so this is no longer the case. If that is not possible than and only than is it permissible to have the mounting hole up. That is unless it would really look better up.
Click to expand...
What is the code reference please.

Seriously, Karl has the best idea. monting hole topside so that it can't bend out or open. As far as looks go it looks fine either way IMO, but for practical purposes and for what will be a stronger hold and more durable install then holes topside.
 
I

izak

Senior Member
Location
Springfield, MO
LarryFine:

Im still working on that table. As soon as I complete it, I will post it. it will take time as i am also working on a table for accurately bending rolled offsets against 90 bends

got a good start on that one too

yeah, Peter, i pull it out of my arse every day ;)
 
LarryFine

LarryFine

Master Electrician Electric Contractor Richmond VA
Location
Henrico County, VA
Occupation
Electrical Contractor
bradleyelectric said:
The right way is with the mounting hole below the conduit and the level on top. That is unless the level has to be on bottom to make it easier to see.
Click to expand...
That makes no difference. The strap goes around the pipe either way, so the level will be to either side of the strap.

If there is more than 1 conduit and they are to close together to have both mounting holes down, spread them apart enough so this is no longer the case.
Click to expand...
If I'm running only two pipes and not using strut, I use a single fastener between them for both straps.

If that is not possible than and only than is it permissible to have the mounting hole up.
Click to expand...
Who's "perrmissible" are we talking about, and what's Mr. Permissible's threshold for "not possible?"

That is unless it would really look better up.
Click to expand...
Oh, we missed that part:

Exception: Unless it looks better up. :cool:
 
LarryFine

LarryFine

Master Electrician Electric Contractor Richmond VA
Location
Henrico County, VA
Occupation
Electrical Contractor
electricalperson said:
i put the hole below the conduit and when verticle i put the clip so you can read what it says without standing on your head
Click to expand...
My concern with hole below is that weight on the conduit imparts a pull-out force perpendicularly to the wall because of leverage, almots like a pry bar would.

Picture the screw left a few threads loosened. With the hole down, the conduit hangs away from the wall, but with the hole up, it still hangs flat on the wall.
 
dreamsville

dreamsville

Senior Member
Location
Michigan
LarryFine said:
My concern with hole below is that weight on the conduit imparts a pull-out force perpendicularly to the wall because of leverage, almots like a pry bar would.

Picture the screw left a few threads loosened. With the hole down, the conduit hangs away from the wall, but with the hole up, it still hangs flat on the wall.
Click to expand...

Well said Larry. I've always put the hole on top with strap down. Seen to many conduit runs partially hanging off of walls when the holes are on the bottom just like Larry described. ;)
 
480sparky

480sparky

Senior Member
Location
Iowegia
75th post, and no one has bothered to wonder why the fasteners are loosening in the first place.....
brick.gif
 
electricalperson

electricalperson

Senior Member
Location
massachusetts
LarryFine said:
My concern with hole below is that weight on the conduit imparts a pull-out force perpendicularly to the wall because of leverage, almots like a pry bar would.

Picture the screw left a few threads loosened. With the hole down, the conduit hangs away from the wall, but with the hole up, it still hangs flat on the wall.
Click to expand...

i never had any problem with it lifting off of the wall. if something is causing the clip to bend and come off the wall then something is wrong. doesnt matter if its a plastic anchor in concrete or ez anchor in sheetrock
 
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