T/CES 006-2018 The technical specifications for composite crossbars of 500kV overhead transmission line towers

Scope

Scope: This standard specifies the environmental conditions for the use of composite crossarms on 500 kV overhead transmission lines, general technical requirements, test methods, marking, packaging, and transportation requirements. This standard applies to the manufacture, inspection, and acceptance of composite crossarms for 500 kV overhead transmission lines. Main technical content: Composite crossarms can reduce the size of tower heads and the width of corridors for overhead transmission lines, offering significant economic benefits. In recent years, the application of composite materials in domestic transmission line tower structures has been increasing, and they have already been put into operation in several ultra-high and high-voltage transmission projects, such as the ±800 kV Linghao DC project and the 750 kV Xinjiang-Northwest Grid Interconnection Project. However, for the more common 500 kV overhead transmission lines in the power industry, the technical specifications for composite crossarms are still lacking. The purpose of formulating this standard is to promote the widespread application of composite crossarms in 500 kV voltage-level transmission projects. Based on the summary of current processing and manufacturing experience of similar products, this standard proposes electrical, mechanical, and internal insulation material performance indicators for 500 kV overhead transmission tower composite crossarms for the first time, which can serve as a technical reference basis for product manufacturing and user procurement.

Development Information

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