Is XHHW and Thhn the same?

Surprisingly, even though XHHW has a thicker and more protective jacket, it is also more flexible than THHN wire. This is due to the XLPE insulation of the XHHW allowing the cable to bend and flex more easily than the PVC insulation of the THHN – making XHHW much easier to work with during the installation process.

What is XHHW wire used for?

Wires with XHHW insulation are commonly used in the alternating current (AC) electrical distribution systems of commercial, institutional, and industrial buildings and installations, usually at voltage levels (potential difference or electromotive force) ranging from 110-600 Volts.

What is XHHW-2 wire used for?

Often used as building wire XHHW-2 can be used in power circuits run in conduit from the utility meter to main circuit protection panels. It can also be used in conduit from circuit protection panels to uses throughout a building. Some other uses are machine tool wiring, appliance and control circuits.

Can XHHW be used in conduit?

What is Type XHHW Wire? 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.

Is XHHW direct burial?

3.3. 1 Type XHHW/XHHW-2 cable shall not be used in direct burial applications.

Is Thhn wire suitable for underground?

THHN cannot be buried directly in the ground so you’ll have to upgrade on a single conductor to USE-2 wire. It’s used mostly on solar installations and has rubber insulation.

Is XHHW-2 wire sunlight resistant?

Southwire Type XHHW-2 aluminum conductors are Alumaflex® brand AA-8000 series aluminum alloy, compact stranded. The insulation is an abrasion, moisture and heat resistant SIMpull® thermoset cross- linked polyethylene. Conductor sizes 6 AWG and larger are listed and marked sunlight resistant in all colors.

Is Thhn wire water resistant?

THHN wire is the most common type of single conductor electrical wire. It’s manufactured with a dual rating of THHN and THWN so that it’s all water-resistant. It can be used indoors and in conduit only.