JB/T 12047-2014Tubular closers with online pre-stretching for elevator steel wire ropes (English PDF)

JB/T 12047-2014 is the English-translated version of 电梯钢丝绳在线预张拉管式成绳机.

JB/T 12047-2014 is a recommended machinery industry standard of China dealing with tubular closers that pre-stretch elevator steel wire rope online while the rope is being laid up. It fixes the types and the technical parameters of these rope-closing machines and then sets out their technical requirements, test methods and acceptance criteria, together with the rules for packaging, transport and storage and the provisions that govern how the machines are built. The document carries the Chinese classification H94 and the international classification 25.120.20. It quotes GB/T 191, GB/T 1184, GB 5083, GB 5226.1, GB/T 7932, GB/T 8163, GB 8903, GB/T 13306, GB/T 13384 and several parts of the JB/T 5000 series. Issued on 9 July 2014, it has applied since 1 November 2014.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

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