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H-type single-pole sliding contact wire is mainly used in situations with large working current. The specifications include 200A, 300A, 400A, 500A, 630A, 800A and other current quantities. The single-pole sliding contact wire can make up for the lack of current overload resistance of the multi-pole sliding contact wire. If the current quantity of the sliding contact wire in a workshop is large, it is necessary to consider the current quantity that the sliding contact wire can carry, and the copper single-pole sliding contact wire can safely solve this problem. ?
1、 Technical index of sheath
The shell of copper unipolar sliding contact wire uses PVC as raw material, and the copper conductor and sliding contact wire sheath need special mold to manufacture. In order to adapt to different environmental needs, the material of the main guide rail body prevents sulfur dioxide, hydrogen sulfide, acid, alkali in the atmosphere and chloride ions contained in the salt fog in the atmosphere of coastal areas. ?
◇ Insulation resistance: ＞ 10M Ω
◇ Insulation dielectric strength: power frequency AC 2500V/min
◇ Shell breakdown voltage: ＞ 20kV/min
◇ Compared with leakage tracking index: CTI ＞ 600V
◇ Resistance to extreme heat and fire hazard test: Bunsen lamp method test is qualified, and the flame retardant performance is good
◇ Short time withstand current test: 60 times rated current for 0.1 second, 30 times rated current for 1 second
◇ Enclosure protection grade: IP13 or IP23
◇ Chemical corrosion resistance: acid resistance, alkali resistance, salt spray resistance test
◇ Electric shock prevention level: 0
◇ Temperature rise at rated current K ≤ 30 ℃
