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Ryan, Also, I think an AHJ could make a stretch and establish his definition of "fastened in place" as meaning secured at both ends, such as is the requirement for suspended cieling when using support wires. So that AHJ would not accept threaded rod and a mini? Don
Don(resqcapt19)
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John, I'm under the impression that Caddy items are approved for support/etc of electrical items. I don't use much Caddy stuff as it is not suitable for industrial work, but I think that you will find that it is listed for "positioning" and not for support. Very few of the conduit supports used in industrial work have any listing. Don
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Ryan,
quote:
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Also, I think an AHJ could make a stretch and establish his definition of "fastened in place" as meaning secured at both ends, such as is the requirement for suspended cieling when using support wires.
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So that AHJ would not accept threaded rod and a mini?
Don Hi Don. Once again, I don't agree with what I wrote, but I could easily see an inspector making this stretch. With that in mind, I could see a person turning down an all-thread and mineralac installation as well.
Ryan Jackson,
Salt Lake City
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Ryan,
Just to push a bit...what about the common trapeze hanger?...threaded rod and strut.
Don
Don(resqcapt19)
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You're killin' me Don!
I think someone might be more inclined to buy a trapeze, because with two threaded rods and strut straps the conduits are "fastened in place" more than they are with a single rod and a mini.
Ryan Jackson,
Salt Lake City
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Seems to me like alot of inspectors will pass anything that has a "caddy" type clip or hanger, but will find all sorts of problems with anything not out of a package or box. Tie wire for conduit securing in metal stud horizontal runs comes to mind. If I put a "caddy" securing clip on -no problems. If I tie wire the thing to the stud - problem. The plumber's tape shown in the picture is crummy, but it is just as good or better than the accepted practice of using an "identified" grid ceiling wire as a hanger with a k-16 clip on it. Since we have a wood ceiling in this picture what about if the installer had of secured a verticle 2" x 6" down from the joist, drilled a hole in it, and ran his pipe through it. Would this have caused a problem for anyone?.
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Slightly off-topic, but still closely related:
I don't see much difference between this and the widely accepted and time honored practice of suspending fluorescent fixtures from jack chain, in continuous rows or otherwise.(except this stuff is stronger)
Have you ever heard of a job being turned down for using (non listed) jack chain?
[This message has been edited by electure (edited 12-01-2005).]
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I have seen it done, but never to that degree (length), and also at least two screws into the wood for support.
As far as the parallel or perpendicular argument? Many towns around here have such rules written into their local Codes... the "whenever practicable" part is AHJ's discretion.
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Don:
As always, your input is appreciated & enlightning.
IMHO, hanging pipe on rod & strut is my 'choice', and the choice of most around here. Occasionally, I 'see' a single rod, with a cowboy hanger.
THe plumbers perforated strap, as I said is not in the sparky's trucks here....maybe a 'DIY', or a gypsy. It's a Jersey thing I guess; not to use it.
BTW, "Workmanship" is not enforcable in NJ.
John
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