What Does the 2 in Xhhw 2 Stand For

XHHW-2. X = Cross-Linked Polyethylene (XLPE) HH = High Heat-Resistance. W = Water Resistance. Temp ° C in dry locations and 75° C in wet locations.

What does XHHW-2 mean?

XHHW-2, or XLPE High Heat-Resistant Water-Resistant, Wire is a general-purpose wire suitable for use in conduit, raceways, feeders, and branch circuits. It is also often found in power distribution systems in industrial, commercial, and residential buildings. It features XLPE (Cross-linked Polyethylene) insulation.

Where a conductor is marked Rhw 2 on the insulation What does the 2 represent?

It is acceptable to use RHW cables underground and in wet locations. RHW-2 – Having the same inherent qualities as RHW, the NEC lists RHW-2 as having the ability to withstand heats of up to 90° C. RHW-2 cable is suitable for direct burial in both wet or dry conditions.