Rating of #1 AWG AL XLP

[ktm400sx]

I can't find a "XLP" in my code book for conducter rating. I'm looking at table 310.16

Thanks for any help

 

[iwire]

I don't see 'XLP' in Table 310.13 which means it can not be used for NEC applications.

Is it dual rated cable?

 

[ktm400sx]

Don't know. It is in an existing installation....friends house.

 

[iwire]

Are they power company condutors?

Underground, overhead?

What are you trying to do?

 

[ktm400sx]

Feeding a sub panel. Current breaker is 60 amp - too small for connected load, we want to use a 100 amp breaker....which is what table 310.16 shows for 75 deg C rating...but of we don't know what the xlp means

 

[C3PO]

Most XHHW-2, RHH, and RHW conductors are XLP (cross-linked polyethylene). Is there any other writing on them?

 

[drbond24]

C3PO is right... XLP (a.k.a. XLPE) is a general designation that qualifies for several different insulation types depending upon its thickness. We make USE-2, RHH, RHW-2, XHHW, and XHHW-2 insulated cables and all are XLP insulations.

 

[charlie]

C3PO is right... XLP (a.k.a. XLPE) is a general designation that qualifies for several different insulation types depending upon its thickness. We make USE-2, RHH, RHW-2, XHHW, and XHHW-2 insulated cables and all are XLP insulations.

However, if the conductors do not have any of the recognized type letters on them, you are prohibited by the NEC from using them inside a building. In order for the recognized type letters to be used, the insulation must pass the UL vertical flame test. That will indicate that the insulation will not propagate a flame once the source of ignition has been removed.

Electric utilities use a lot of XLPE for their URD cable but we can't enter a building with our cable.