The main differences between THWN wire and PV wire lie in their application scenarios, insulation materials, and certification standards.
Application scenario: THWN wire are usually used indoors, mainly for commercial buildings and industrial applications. PV wire are usually used in special environments such as outdoor or photovoltaic systems.
Insulation material: THWN wires use polyvinyl chloride (PVC) as the insulation material, with a layer of nylon sheath material on top of the PVC insulation material. The insulation material and sheath that PV wires may use are irradiated XLPO, depending on their specific application requirements.
Certification standard: thwn wire comply with the requirements of the National Electrical Code (NEC) in the United States, and the product must pass UL83 certification. As a special circuit, pv cable may need to meet other specific certification standards, such as UL4703 certification, TUV certification, CPR testing, depending on their specific usage environment and purpose.
In summary, the main differences between THWN wire and PV wire lie in their application scenarios, insulation materials, and certification standards. The choice of which type of wire to use depends on specific application requirements and environmental conditions
