type USE-2 4/0 cable not marked as RHW - inspector says can not install any length inside. cable runs from 200A basement disconnect in conduit (5 feet) to outside and continues direct burial (170 feet) to outbuilding emerging in conduit terminating in interior 200A panel (18 inches). I do not intrepret NEC 338.10 to prohibit this installation.
Service Entrance Cable
- Thread starter merryman
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- Massachusetts
I agree with the inspector, USE is not allowed inside the building at all.
338.12(B) 2008 or if your using the 2005 look at the last paragraph of 338.10(A)
338.12(B) 2008 or if your using the 2005 look at the last paragraph of 338.10(A)
iwire said:
The UL White Book also agrees with the inspector.
Types USE and USE-2 ? Indicates cable for underground installation including direct burial in the earth. Cable in sizes 4/0 AWG and smaller and having all conductors insulated is suitable for all of the underground uses for which Type UF cable is permitted by the NEC. Multiconductor Type USE cable contains conductors with insulation equivalent to RHW or XHHW. Multiconductor Type USE-2 contains insulation equivalent to RHW-2 or XHHW-2 and is rated 90?C wet or dry. Single- and multiconductor Types USE and USE-2 are not suitable for use in premises or aboveground except to terminate at the service equipment or metering equipment. Both the insulation and the outer covering, when used, on single- and multiconductor Types USE and USE-2, are suitable for use where exposed to sun.
Pete
Service Entrance Cable
I agree that it is not suitable for inside premise wiring - however - it is only connected to the service equipment that is installed in the structure. Article 100 definitions: "Service equipment: the necessary equipment usually consisting of a circuit breaker(s) or switch(es) and fuse(s) and their accessories, connected to the load end of service conductors to a building or other structer, or an otherwise designated are4a, and intended to constitute the main control and cutoff of the supply." Is not the 200A disconnect and the 200A panel inside the structure considered Service equipment? The conductor is protected to the point of entrance by conduit as required by 300.5(D)(2). JM
I agree that it is not suitable for inside premise wiring - however - it is only connected to the service equipment that is installed in the structure. Article 100 definitions: "Service equipment: the necessary equipment usually consisting of a circuit breaker(s) or switch(es) and fuse(s) and their accessories, connected to the load end of service conductors to a building or other structer, or an otherwise designated are4a, and intended to constitute the main control and cutoff of the supply." Is not the 200A disconnect and the 200A panel inside the structure considered Service equipment? The conductor is protected to the point of entrance by conduit as required by 300.5(D)(2). JM
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