... be not less than -20. When overall diameter of cable(D) is less than 25mm,permissive bending radius of cable should ... be not less than 4D,When overall diameter(D) of cable is equal to and above 25mm, permissive bending ... JKLY JKLHY1,2,4JKYJ JKYJ JKLHYJ1,2,4JKLV JKLY JKLYJ3+k* K is the belt load bearing neutral conductor, no matter what ...