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全苏矿井建设施工组织及机械化研究所对封闭型钢绳的提升工况进行的研究证明,这种钢绳的使用寿命即使在同样工况条件下也不相同,甚至很短。凿井提升用的钢绳寿命平均为6～7个月,但也常有使用1～4个月
The research conducted by the All-China Mine Construction Organization and Mechanization Institute on the lifting conditions of closed steel ropes has shown that the service life of such steel ropes is not the same or even very short even under the same working conditions. The lifespan of the steel cord used for sinking is 6 to 7 months on average, but it is also often used for 1 to 4 months