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#121715 - 08/15/05 04:51 PM Conduit Support  
Admin  Offline

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NY, USA
Quote
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
[Linked Image]


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#121716 - 08/16/05 03:41 AM Re: Conduit Support  
Trumpy  Offline


Member
Joined: Jul 2002
Posts: 8,223
SI,New Zealand
John,
Is this RMC?.
My understanding of "supported" means having the wieght taken off of it along along it's length. [Linked Image]


#121717 - 08/16/05 05:58 AM Re: Conduit Support  
George Corron  Offline
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Joined: May 2001
Posts: 717
Lorton, Va USA
May also wish to look for the UL sticker on that tie wire as an approved support, might be hard to find.


#121718 - 08/16/05 07:14 AM Re: Conduit Support  
resqcapt19  Offline
Member
Joined: Nov 2000
Posts: 2,148
IL
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


Don(resqcapt19)

#121719 - 08/16/05 10:35 AM Re: Conduit Support  
renosteinke  Offline
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Blue Collar Country
Material here is EMT- made a dull grey color by age.


#121720 - 08/16/05 04:23 PM Re: Conduit Support  
mxslick  Offline
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Joined: Oct 2004
Posts: 803
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? [Linked Image]

A lot of the old stuff still works better than the new stuff anyway. Ask some of the POCO guys about transformers, for instance.


Stupid should be painful.

#121721 - 08/16/05 11:25 PM Re: Conduit Support  
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Quote
Here's another pic of unusual conduit support. In this one, 1 1/4 PVC is supported by a bicycle hook.

- renosteinke
[Linked Image]


#121722 - 08/17/05 02:03 AM Re: Conduit Support  
mxslick  Offline
Member
Joined: Oct 2004
Posts: 803
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!


Stupid should be painful.

#121723 - 08/23/05 12:21 AM 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
[Linked Image]

[Linked Image]


#121724 - 08/29/05 07:56 PM Re: Conduit Support  
VAElec  Offline
Member
Joined: Jul 2005
Posts: 49
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.


Pete

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