chevyx92
Senior Member
- Location
- VA BCH, VA
If it's listed for direct burial then can it emerge from grade, legally? Had an inspector tell me it wasn't legal even if it was in an area not subject to damage.
chevyx92 said:If it's listed for direct burial then can it emerge from grade, legally? Had an inspector tell me it wasn't legal even if it was in an area not subject to damage.
M. D. said:That is asinine . Could he cite an article ?????
If it is not subject to physical damage there is no reason to fail you,, heck UF cable can emerge from the ground where not subject to physical damage, this guy is a P.U.D. person under delusion
USE AND INSTALLATION
This category covers liquid-tight flexible nonmetallic conduit, in trade sizes 3/8 in. to 4 (metric designators 12 to 103) inclusive, for installation in accordance with Article 356 of ANSI/NFPA 70, "National Electrical Code" (NEC), for conductors in circuits of 600 V, nominal, or less. This product may also be used for installation of conductors for electric signs and outline lighting in accordance with the NEC.
PRODUCT MARKINGS
Liquid-tight flexible nonmetallic conduit suitable for direct burial and in poured concrete is marked "Direct Burial,"" Burial,""Dir Burial" or "Dir Bur."
Liquid-tight flexible nonmetallic conduit suitable for use outdoors is marked "Outdoor."
Liquid-tight flexible nonmetallic conduit is marked with the product name in conjunction with the Listing Mark and the type of construction: "A" for layered conduit, "B" for integral conduit and "C" for corrugated conduit, or with "LFNC-A" for layered conduit, "LFNC-B" for integral conduit, and "LFNC-C" for corrugated conduit.
Liquid-tight flexible nonmetallic conduit not marked with a temperature designation or marked "60 C" is for use at temperatures not in excess of 60?C (140?F).
Conduit for use in dry or oily locations at a temperature higher than 60?C (140?F) is marked "____ C dry, 60 C wet, 70 C oil res" or "____ C dry, 60 C wet, 70 C oil resistant" with "80 C" or "105 C" inserted as the dry locations temperature.
Conduit marked "___C dry, 60 C wet, 60 C oil res" or "___C dry, 60 C wet, 60 C oil resistant" is for use at a temperature of 105?C (221?F) and lower temperatures in air, and at 60?C (140?F) and lower temperatures where exposed to water, oil or coolants, with "80 C,""90 C" or "105 C" inserted as the dry locations temperature.
RELATED PRODUCTS
Fittings for use with liquid-tight nonmetallic conduit are covered under Conduit Fittings (DWTT) and are suitable only for the type of conduit indicated by the marking on the fitting.
ADDITIONAL INFORMATION
For additional information, see Electrical Equipment for Use in Ordinary Locations (AALZ).
REQUIREMENTS
The basic standard used to investigate products in this category is ANSI/UL 1660, "Liquid-Tight Flexible Nonmetallic Conduit."
UL MARK
The Listing Mark of Underwriters Laboratories Inc. on the product is the only method provided by UL to identify products manufactured under its Listing and Follow-Up Service. The Listing Mark for these products includes the UL symbol (as illustrated in the Introduction of this Directory) together with the word "LISTED," a control number, and one of the following product names as appropriate: "Liquid-Tight Flexible Nonmetallic Conduit,""LFNC-A,""LFNC-B" or "LFNC-C."
Last Updated on 2007-07-10
Questions?
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The appearance of a company's name or product in this database does not in itself assure that products so identified have been manufactured under UL's Follow-Up Service. Only those products bearing the UL Mark should be considered to be Listed and covered under UL's Follow-Up Service. Always look for the Mark on the product.
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chevyx92 said:If it's listed for direct burial then can it emerge from grade, legally? Had an inspector tell me it wasn't legal even if it was in an area not subject to damage.
I would call that exposed to physical damage, in my opinion. That is, unless nobody gardens or mows their lawn or uses weed wackers in your area.Cavie said:We allow it all the time. In fact we require it if the a/c comp is over 3' from the house. Down the wall from the disc to the ground, buried underground then back up to the a/c comp.
mdshunk said:I would call that exposed to physical damage, in my opinion. That is, unless nobody gardens or mows their lawn or uses weed wackers in your area.
In the eyes of the code, with respect to protection from physical damage, liquidtight flex and sch 40 PVC are the same. That is to say, neither is rated for protection against physical damage, even if one will do a better job of protection versus the other. Schedule 80 PVC is the only nonmetallic raceway rated for protection against physical damage.M. D. said:The inspector said he would fail it regarless of it's being exposed to physical damage.
Would you feel the same about sch. 40 PVC ??
Um... yeah, sorta. What I think I'm saying is that if it's exposed and emerging from grade, it's necessarily exposed to physical damage. It's completely okay if you disagree with that assessment, but that's my opinion.M. D. said:You said you agreed with the inspector , He does not contemplate physical damage ,.. He says no regardless . Do you???
mdshunk said:I would call that exposed to physical damage, in my opinion. That is, unless nobody gardens or mows their lawn or uses weed wackers in your area.
What if you emerge from grade under a house in the crawl space? Would you consider that subject to damage and not allow liquidtight or sch 40 to emerge? Just curious as to others opinions.mdshunk said:In the eyes of the code, with respect to protection from physical damage, liquidtight flex and sch 40 PVC are the same. That is to say, neither is rated for protection against physical damage, even if one will do a better job of protection versus the other. Schedule 80 PVC is the only nonmetallic raceway rated for protection against physical damage.
I think I said ,If it is not subject to physical damage,. Would it it not then be protected from damage?? is there a difference?benaround said:M.D.
I would disagree with UF cable emerging from the earth unprotected 300.5(D)(1) and (2) , am I missing another article?