“THHN尼龙护套线UL83”详细介绍
主要用途及使用特性
尼龙护套线缆比普通的PVC绝缘线缆具有更优良的电气和物理性能；
尼龙护套线缆具有良好的耐热性，在高温下运行失重小的特点，可以提高线缆的瞬时抗热过载能力，可减缓或者降低PVC组分的逸出和迁移；
尼龙护套线缆具有耐腐蚀性和自润滑及耐油的特点；
与同截面的PVC绝缘线缆相比，尼龙护套线具有外径小，重量轻，静摩擦系数小和耐腐蚀性的特点，可以提高敷设中的安全性和适用性；
尼龙护套线缆的额定电压为450/750V，广泛应用于家用电器、航空航天系统、建筑和照明。
TYPE THHN/THWN/THWN-2
Scope
This specification covers type THHN/THWN/THWN-2 cable with soft annealed copper solid or stranded conductor, PVC insulation and nylon jacket, conforming to Standard 83 of Underwriters Laboratories, Inc. They meet the requirements of the VW-1 and CT flame test, gasoline and oil resistant, sunlight resistant. UL file No. E325277.
Application
THHN/THWN/THWN-2 are primarily used in conduit and cable trays for services, feeders and branch circuits in commercial or industrial applications as specified in the National Electrical Code. THHN is rated at a conductor temperature of 90℃ dry, THWN is rated at a conductor temperature of 75℃ dry or wet, THWN-2 is rated at a conductor temperature of 90℃ dry or wet. They are permitted for 600V application.
Construction
Conductors: Soft annealed copper, bare or tinned.
Sizes 14AWG-1000kcmil: Solid or stranded.
Insulation: Flame retardant PVC. Thickness: per UL83.
Jacket: Nylon. Thickness: per UL83.
Information on the cable: AWG or kcmil size, type letters, rated voltage, the name of the manufacturer, UL file number, characteristic, manufacture date, FEET.