Unistrut Clamps

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Frank, there is nothing saying it isn't is there? You could use tie wire to secure the PVC to the strut if you wanted to. Can you get the information that is on the packaging?

Roger
 
The use of standard stut straps or tie wire to secure PVC conduit, other than within 3' of the conduit terminations likely be a code violation.
352.30 Securing and Supporting
RNC shall be installed as a complete system as provided in 300.18 and shall be fastened so that movement from thermal expansion or contraction is permitted. RNC shall be securely fastened and supported in accordance with 352.30(A) and (B).
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Strut straps or tie wire would not permit the required mevement.
Don
 
Don, that all depends on who is doing the installation.

Roger
 
I have had to go back to other peoples jobs and remove strut clips holding PVC as the inspector felt they violated 352.30.

I agree with that call, I do not know anyway to leave a strut clip loose enough to allow expansion and contraction while at the same time holding the clip to the strut.
 
It's the way we do it here and never once got taged or had a problem.The pipe is able to move sidways enough to make up this small differance in lenght do to heat or cold.Perhaps up north this could be a serious problem with 0 to 100 degree temp.
 
Jim W in Tampa said:
It's the way we do it here and never once got taged or had a problem.The pipe is able to move sideways enough to make up this small differance in lenght do to heat or cold.
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Sideways?

As in bowed and disgusting looking?
 
iwire said:
Sideways?

As in bowed and disgusting looking?
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Bob,your forgetting where i live that this temp change is very little and unless a verylong run it would never be seen.And even if the clamp did let it slide what makes you think it still wont bow.
 
proper fastening device ????

proper fastening device ????

ok guys, enlighten me ... I can't use strut straps, or the plastic clip type, I would imagine one hole and 2 hole straps fall into the same catagory so how do I secure the conduit ???

edit for stupidity ...

DUH ... they make plastic 1 and 2 hole straps ... but are you guys refering to some method I'm overlooking here ... M
 
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don_resqcapt19 said:
Bob,

Unless you support it every few inches, all PVC runs look that way, at least to me, but then I use rigid for about 95% of my work.
Don
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LOL

I am certainly no fan of PVC run exposed, IMO it ends up looking bad quickly.

The best way to keep PVC looking good when run exposed is to sleeve it in rigid. ;)
 
iwire said:
LOL

I am certainly no fan of PVC run exposed, IMO it ends up looking bad quickly.

The best way to keep PVC looking good when run exposed is to sleeve it in rigid. ;)
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PVC coated Rigid...NOW we're talking !
 
don_resqcapt19 said:
The use of standard stut straps or tie wire to secure PVC conduit, other than within 3' of the conduit terminations likely be a code violation.

Strut straps or tie wire would not permit the required mevement.
Don
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How much movement would there be concerning a run of RNC coming up from a meter socket to the weatherhead on an overhead service? Are you referring to a run of RNC that originates above ground and goes underground?
 
not much movement to worry about. a 100 ft run will change 4 in if the temp change is 100 degrees F. hardly a worry for a 10 ft stick of 2 inch. i dont know where these guys are looking for bowed and sloppy pvc, but as m73214 said a 2" run from meter to weather head one hole strapped with oz gedney galvanized straps is a good looking install. remember 4 inches for 100 ft run in 100 degree temp change. i have run exposed pvc all over the place and still see some of the work when driving and it looks as the day i installed it, good. my pool is 1" pvc exposed with bends, straps and conduit bodies and besides a little color fade it has not moved at all for 17 yrs. perhaps the problem was workmanship in these installs that were seen and not the actual weather change. there are only certain areas of the country that see 100 F weather changes
 
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m73214 said:
How much movement would there be concerning a run of RNC coming up from a meter socket to the weatherhead on an overhead service? Are you referring to a run of RNC that originates above ground and goes underground?
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In what state can you have a mast to weatherhead in pvc? Not any that I know of.
 
chevyx92 said:
In what state can you have a mast to weatherhead in pvc? Not any that I know of.
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We use PVC with weatherheads all the time. That's why they make them. No one said that they were using the PVC as a mast to support the service drop.
 
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