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#121715 - 08/15/05 01:51 PM Conduit Support
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Another one for the "lawyers" out there.

NEC says conduit must be supported- but doesn't say how. This pic shows the most minimal support I've ever seen. I looks like the tie wire was placed when the mortar was laid down.

I believe this was in place since WWII, and only recently supplimented by some proper straps.

- renosteinke
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#121716 - 08/16/05 12:41 AM Re: Conduit Support
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John,
Is this RMC?.
My understanding of "supported" means having the wieght taken off of it along along it's length.
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#121717 - 08/16/05 02:58 AM Re: Conduit Support
George Corron Offline
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May also wish to look for the UL sticker on that tie wire as an approved support, might be hard to find.
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#121718 - 08/16/05 04:14 AM Re: Conduit Support
resqcapt19 Offline
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Registered: 11/10/00
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George,
Quote:
May also wish to look for the UL sticker on that tie wire as an approved support, might be hard to find.

There is no code requirement that conduit supports be listed. Many of the commonly used supports that are recognized for the purpose are not listed.
Don
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#121719 - 08/16/05 07:35 AM Re: Conduit Support
renosteinke Offline
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Material here is EMT- made a dull grey color by age.
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#121720 - 08/16/05 01:23 PM Re: Conduit Support
mxslick Offline
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Registered: 10/24/04
Posts: 803
Loc: Atomic City, ID USA
If it has indeed been in place since WWII, who says it wasn't perfectly legal back then? And if so, the fact it's still hanging on says a lot. How many of today's conduit supports (listed or not) do you think will still be sound in 60 years?

A lot of the old stuff still works better than the new stuff anyway. Ask some of the POCO guys about transformers, for instance.
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#121721 - 08/16/05 08:25 PM Re: Conduit Support
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Here's another pic of unusual conduit support. In this one, 1 1/4 PVC is supported by a bicycle hook.

- renosteinke
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#121722 - 08/16/05 11:03 PM Re: Conduit Support
mxslick Offline
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Registered: 10/24/04
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Loc: Atomic City, ID USA
Okay, now that is just wrong. The bike hook would not in any way,shape or form be an adequate or approved support!
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#121723 - 08/22/05 09:21 PM Re: Conduit Support
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here are two more "original" methods to hang your pipe.

Now, code does not allow you to hang a sewer line grom your EMT- but can you do the reverse? Let alone, use rope?

And what about hanging RMC from EMT, using "plumbers' tape?"

- renosteinke


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#121724 - 08/29/05 04:56 PM Re: Conduit Support
VAElec Offline
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Registered: 07/26/05
Posts: 49
Loc: Sterling, Virginia, US
At least they used compression fittings below the plumbing pipe (wet location if I have seen one!), and I think that this is the first time I have seen a picture of knob and tube with EMT in the same shot. Is that romex branching off the knob and tube in the last pic? That is what I am used to seeing when people tap off of knob and tube. Code acceptable or not, i've seen it before.
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