Liquid-Tight Flex, UL or Not

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tallenf-in-oklahoma

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I have a contractor installing some recepticals for me in my Data Center under a raised floor. When he started he brought in Non UL Liquid-tight flex. I was wondering if this was code or aginst code. We stoped the project untill we can find out. Everything that they have installed in the last several years have been Non UL and this seems suspect to me. Any replies would be helpful.
 
Off hand without a code book I would think that anything that is installed and not UL compliant would be an issue. Though before I put both feet in my mouth, does the sealtite carry a seal from another regulatory agency?

I would also think too, that this might be a local AHJ matter.
 
kkwong said:
Off hand without a code book I would think that anything that is installed and not UL compliant would be an issue. Though before I put both feet in my mouth, does the sealtite carry a seal from another regulatory agency?

I would also think too, that this might be a local AHJ matter.
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90.4 states the AHJ makes the rules for approving equipment and material, so I would agree.
 
350.6 LFMC and associated fittings shall be listed.

I would be surprised if a manaf. would produce LFMC and then not get

it listed, How many people would buy it?? UL is not the only listing organization
 
tallenf-in-oklahoma said:
When he started he brought in Non UL Liquid-tight flex.
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Okay.. how do you know this; for sure? After all, the flex has to be compatible with normal fittings and such. Is is possible that you were being nosey, and just missed the UL seal? Even if it did lack a UL seal (which I personally very much doubt) why don't you like the ETL or even the CSA marks?
 
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Lfmc

Lfmc

I stand to be corrected, but in this area there was at one time, a LFMC that the supply houses referred to as "EF" which did not contain the "bond" to allow it to be used as a grounding means. It was not, I believe, UL lsited and although less expensive by far, was often rejected if the job was inspected.
(my memroy tells me it was UR for OEM equipment,but that is subject to be wrong..its been a long time)
 
tallenf-in-oklahoma said:
I have a contractor installing some recepticals for me in my Data Center under a raised floor. When he started he brought in Non UL Liquid-tight flex. I was wondering if this was code or aginst code. We stoped the project untill we can find out. Everything that they have installed in the last several years have been Non UL and this seems suspect to me. Any replies would be helpful.
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Didn't you spec certain products be used?
 
In my area there is a lot of unlisted sealtight flex being sold in the supply houses. It is considerably cheaper then the list flex, about half the price.

Chris
 
I turned down some non listed sealtite a few weeks ago. It was black and had no wrighting whatsoever. Nothing on the fittings either. Very soft stuff and looked like dryer vent hose only smaller. I have no Idea where that stuf is made.
 
The unlisted sealtight that I have seen is gray and looks almost like the listed stuff (minus the listing mark;))

Chris
 
Both metallic and non-metallic liquidtight are required to be listed. IMO the AHJ shouldn't accept a product that isn't listed when the NEC requires it to be.
 
raider1 said:
The unlisted sealtight that I have seen is gray and looks almost like the listed stuff (minus the listing mark;))

Chris
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Its scary stuff. I know that sounds odd, but for some reason I feel better seeing the UL mark on products that are being used... :)
 
With all of the bad stuff coming from China, don't be surprised if you see a LOT of unlisted materials in some places. Usually the supply houses will not carry anything like that (the major suppliers anyway). But the home improvement stores and hardware stores in some areas might. LOOK OUT!!!
 
tallenf-in-oklahoma said:
I have a contractor installing some recepticals for me in my Data Center under a raised floor.
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Raised floor is not a plenum I take it. Never did one but would think it is?
 
chris kennedy said:
Raised floor is not a plenum I take it. Never did one but would think it is?
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Actually if the room is built according to article 645 then the LFMC is permitted in the floor.
 
I believe that the distinction is that non UL does not have the bond wire wire as an integral part. You must install a ground wire.
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No, you can't use it. The code wording was changed in the 96 code (I think) to require that raceways and their fittings be listed. Prior to the 2002 code this requirement was not clear as it was buried in the definition, however starting with the 2002 it is very clear that the only liquidtight flexible metal conduit that is permitted under the NEC is the listed type. This must not be very well enforced as when you order it from the supply house you must specify that you want the listed type. If you don't you will get the cheaper non-listed type. In the 2002 code the xxx.6 sections were added to all of the raceway articles requiring that the raceway and associated fittings be listed.
350.6 Listing Requirements
LFMC and associated fittings shall be listed.
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Don
 
Non UL

Non UL

Is there somewhere in industry that this product meets the particular requirements for usage?
I agree that the xxx.6 sections specify listed material.
How is it that a company like AFC would carry such a complete line of non UL LFMC if there were no compliant uses?
Just doesn't seem to make any sense.
 
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dezwitinc,

Just a guess, maybe equipment manafactures can use it in various applications

and then get the whole peice listed for it's use.

If it's not listed. it's not LFMC.
 
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