FIELD: handling engineering.
SUBSTANCE: steel cable has outer layer into which indicator wires are interwoven, said wires being made from material having bending stress resistance lower by 16.5% than said parameter of material from which main wires used in outer layer are made. Indicator wires are shaped and sized similar to main wires, and number of indicator wires does not exceed rejection coefficient as to number of ruptures of outer wires for the given structure of steel cable. Indicator wires do not adjoin one another within cable. Indicator wires are destructed faster than main wires in this layer of closed-type steel cable structure.
EFFECT: prolonged service life and enhanced reliability in operation of steel cable.
1 dwg
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