Xhhw 2 Wire Meaning

Recognized as a general purpose building wire for use primarily in conduit or other raceways as specified in the nec it is used industrial environments where superior insulation toughness and chemical resistance are required. The initials or acronym for xhhw stand for cross linked high heat water resistant insulated wire. What is the difference there are a lot of somewhat confusing abbreviations used on wires and cables we broke down thhn and xhhw in that article now let s tackle rhw rhw 2 use 2 and rhh building wire.

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This xhhw is the designation for a specific insulating material for electrical building wire and cable.

Xhhw 2 wire meaning. Xhhw is an alphabetism or initialism which stands for xlpe cross linked polyethylene high heat resistant water resistant xhhw is a designation for a specific insulation material temperature rating and condition of use suitable for wet locations for electrical wire and cable. As mentioned in the article thhn vs. Thwn stands for t hermoplastic h eat and w ater resistant n ylon coated 19 thwn is a designation for a specific insulation material temperature rating and condition of use wet locations for electrical wire and cable. Mtw wire and thhn wire are electrical pvc wires used in building applications.

Nominal dimensions size insulation bare xhhw 2 bare xhhw 2nominal weight awg thickness conductor conductor conductor conductor lbs 1000ft standard package. Xhhw 2 is approved for use up to 600v and is ul listed for 90 c 194 f in both dry and wet locations. Xhhw wire is generally used in residential commercial and industrial buildings. These cables share several overlapping characteristics.

Mtw and thhn are built in accordance with the national electrical code for general purpose wiring for installation in conduit or other recognized raceway. Xhhw 2 ct is a single copper conductor rated for ct use on 1 0 awg and larger sizes. The suffix 2 indicates that these wire types can be used at a continuous 90 c operating temperature in wet and dry locations. The previous generation of xhhw had a lower temperature rating approved up to 75 c in wet environments making the next generation xhhw 2 wire a more useful and an all environment type product.

The term xhhw also designates the temperature rating as well as the conditions that the cable can be used under. There are a few factors that set xhhw 2 apart from thhn thwn 2. Wire and jacket insulation. All electric wires and cables must be labeled appropriately by following the national electric code nec guidelines.

Xhhw 2 insulation which is similar to xhhw is suitable for use in dry or wet locations up to 90 c 194 f. Thermoplastic and thermoset are two common types of cable insulation and it s important to understand the strengths and weaknesses of each when designing and building a new facility machine or appliance. Insulation type voltage rating dielectric constant temperature rating resistance to leakage current flexibility and.