6+ THWN-2 Wire Definition Explained: UL Standard

thwn 2 wire definition

6+ THWN-2 Wire Definition Explained: UL Standard

This term refers to a specific type of insulated electrical conductor commonly utilized in building wiring. It is characterized by its thermoplastic high water-resistant nylon coating. This insulation allows the wire to be used in wet and dry locations, with a maximum operating temperature rating depending on the specific environment.

The significance of this wire type lies in its versatility and suitability for diverse applications. Its water resistance makes it ideal for damp or wet environments, while its nylon jacket provides added protection against abrasion, chemicals, and oil. Its widespread adoption is due to its reliability, cost-effectiveness, and adherence to safety standards established within the electrical industry. Historically, this type of wiring has been a staple in residential, commercial, and industrial electrical systems.

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