During a pre-operational inspection of a crane, several measurements can indicate that a wire rope must be immediately removed from service. One critical measurement is the number of broken wires within a specific length of the rope. According to standards such as ASME B30.5, a wire rope must be removed from service if the number of visible broken wires exceeds certain limits within one rope lay. A rope lay is the distance it takes for one strand to make a complete revolution around the rope. The spe....
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