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Conduit Support #121715
08/15/05 04:51 PM
08/15/05 04:51 PM
Admin  Offline
OP
Administrator
Member
Joined: Oct 2000
Posts: 3,516
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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Re: Conduit Support #121716
08/16/05 03:41 AM
08/16/05 03:41 AM
Trumpy  Offline

Member
Joined: Jul 2002
Posts: 8,247
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]

Re: Conduit Support #121717
08/16/05 05:58 AM
08/16/05 05:58 AM
G
George Corron  Offline
Member
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.

Re: Conduit Support #121718
08/16/05 07:14 AM
08/16/05 07:14 AM
R
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)
Re: Conduit Support #121719
08/16/05 10:35 AM
08/16/05 10:35 AM
renosteinke  Offline
Cat Servant
Member
Joined: Jan 2005
Posts: 5,316
Blue Collar Country
Material here is EMT- made a dull grey color by age.

Re: Conduit Support #121720
08/16/05 04:23 PM
08/16/05 04:23 PM
mxslick  Offline
Member
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.
Re: Conduit Support #121721
08/16/05 11:25 PM
08/16/05 11:25 PM
Admin  Offline
OP
Administrator
Member
Joined: Oct 2000
Posts: 3,516
NY, USA
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]

Re: Conduit Support #121722
08/17/05 02:03 AM
08/17/05 02:03 AM
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.
Re: Conduit Support #121723
08/23/05 12:21 AM
08/23/05 12:21 AM
Admin  Offline
OP
Administrator
Member
Joined: Oct 2000
Posts: 3,516
NY, USA
Quote
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]

Re: Conduit Support #121724
08/29/05 07:56 PM
08/29/05 07:56 PM
V
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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