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Executive standard: JB3302-1999
1.The diameter of winch roll should be no less than 400mm, bending
radius for well-mouth pulley, & aerial pulley should be no less
than 230mm, the pulley groove should suit well with cable outer
diameter. 2.The D.C. resistance for wire core should be no less than 36Ω/km; it could pass voltage testing A.C. 50HZ 1000V for 1 minutes without puncture between wire core and armor. | ||||||||||
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