The standard DL/T 371-2019, published on January 1, 2019, is a comprehensive guideline designed for the design, manufacture, and application of pulley blocks used in overhead power transmission lines. This standard, available in both Chinese and English versions, aims to ensure the safety, reliability, and efficiency of electrical equipment utilized within China's extensive power grid infrastructure.
The pulley blocks covered by DL/T 371-2019 are integral components that facilitate the smooth passage of conductors during installation or maintenance operations on overhead transmission lines. The standard provides detailed specifications regarding materials selection, dimensional tolerances, mechanical testing methods, and operational guidelines to optimize performance under various environmental conditions.
Moreover, DL/T 371-2019 emphasizes the importance of quality control throughout the entire lifecycle of pulley blocks. This includes initial design verification, manufacturing process audits, as well as regular inspections and maintenance procedures post-installation. By adhering to these guidelines, utility companies can minimize downtime due to equipment failure while ensuring compliance with national safety regulations.
For international stakeholders involved in power transmission projects within China or those seeking to export their products into this market, familiarity with DL/T 371-2019 is crucial for achieving certification and gaining competitive advantage. This standard serves as a benchmark for excellence in engineering practices related to pulley blocks and contributes significantly towards advancing the technological capabilities of overhead power transmission systems.
*** Please note: This description may not be accurate, please refer to the official documentation.
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Update:
Wed, 15 Apr 2026 03:10:02 +0000