This standard specifies the types, main technical parameters, technical requirements, inspection methods, inspection regulations, etc. of overhead transmission line pay-off pulleys. This standard is applicable to the design, manufacturing, and inspection of conventional pay-off pulleys used in the construction of overhead transmission lines. The pay-off pulley referred to in this standard is mainly used for laying wires, overhead ground wires, and fiber optic composite overhead ground wires. Special pay-off pulleys used for other functions (such as large crossing pay-off pulleys, turning pay-off pulleys, etc.) and unconventional deployment methods (such as helicopter pay-off, unbalanced pay-off, etc.) can refer to this standard
Function of testing report:
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1. Telephone communication and confirmation of requirements
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1. The testing industry is fully covered, meeting different testing needs
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4. Free initial testing, with no testing fees charged
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