Glossary


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The Letter X

XHHW
A UL cable type. Cross-linked polyethylene insulated small diameter building wire rated 75°C wet and 90°C dry. The XHHW-2 version is rated 90°C in both wet and dry locations.

XL
Cross-linked. See here for more.

XLP
Cross-linked polyethylene. Also written as XLPE. See here for more.