![]() ![]() On the other hand, XHHW has the features to provide increased efficiency and extended longevity.īoth cables are incredibly popular, each with unique characteristics that are advantageous in certain environments. On one hand, THHN is the more popular cable with our customers and many would say it’s perfectly sufficient for what they need. When comparing the price of the two wires, the equivalent gauge of XHHW costs somewhere between 5-20% more than its THHN counterpart.Īt the end of the day, the decision between using XHHW or THHN in their next project comes down to weighing performance versus budget. The XLPE insulation of the XHHW allows the cable to bend and flex better than the THHN’s PVC insulation -so XHHW is much easier to work with during the installation process. This means that, while more THHN can be fit into a raceway or fed through a conduit, its jacket doesn’t offer as much protection as the XHHW jacket -XHHW’s jacket coating is more resistant to chemicals, ozone and abrasions while THHN’s thin coating can lead to current leakage and can break down from chemical or environmental exposure, emitting a toxic smoke when burned.Įven though its jacket is thicker and more protective, XHHW is also more flexible than THHN wire. The jackets on the THHN family are thinner than those of XHHW wires. XHHW-2 temperature rating : 90✬ in both dry and wet locations.XHHW-2 has the same properties as XHHW, but the "-2" denotes improved insulation. THWN-2 temperature rating : 90✬ in both dry and wet locations.THWN temperature rating : 90✬ in dry, 75✬ in wet locations.Temperature rating : 90✬ in dry, 75✬ in wet locations.Temperature rating : 90✬ in dry locations.The different letters in names denote particular properties of each cable, and each provides the cable with varying levels of insulation: The main difference between XHHW/XHHW-2 and THHN/THWN-2 is in the wire’s jacket. While these two wire types are very similar and often interchangeable in their application, the differences are important to know in order to make the smartest decision when making a building wire purchase. These cables come in both copper and aluminum, can have solid or stranded conductors, and are mainly used for power distribution up to 600 volts in the construction of residential, commercial, and industrial buildings. When it comes to building wire, two of the most common and popular choices for electricians, engineers & homeowners are THHN and XHHW (or the newer and improved THWN/THWN-2 and XHHW-2). Weighing the differences between THHN/THWN-2 & XHHW/XHHW-2 building wire ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |