256HC Mast Section The cause of broken wire on the end of the wire rope of the tower crane
The cause of damage should be identified. If the length of the rope allows, the broken wire should be cut off and re-installed reasonably. Local aggregation of broken wire, if broken wire close together to form a local aggregation, wire rope should be scrapped.
If the broken wires are gathered in the length of the rope less than 6d or in any strand, the wire rope should be scrapped even if the number of broken wires is less than the listed value. In some cases, fatigue is the main cause of wire rope damage, and wire breakage occurs only after a period of use, but the number of wire breakage increases gradually and the time interval becomes shorter and shorter. In this case, in order to determine the rate of increase of broken wire, the increase of broken wire should be carefully examined and recorded. The rule can be used to determine the future scrap date of wire rope.
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