附加长度
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Difference between grounding electrodes and grounding busbars, and their BOQ listing, measurement, and pricing calibers (GB/T 50856-2024 lightning protection and grounding devices, Table D.10.1)
The grounding electrode is the current-dispersing element, measured by d…
GB/T 50856-2024《通用安装工程工程量计算标准》附录D 表D.10.1（防雷及接地装置，编码0304010）、表D.17.3-6GB/T 50854-2024《房屋建筑与装饰工程工程量计算标准》TB/T 10829-2024《铁路工程预算定额 第八册 电力工程》第八章 防雷及接地2026-09-12 - 02
Calculation rules and values of reserved (additional) lengths in cable laying quantities
Cable quantity = the single-cable laying length shown on the design + va…
GB/T 50856-2024 通用安装工程工程量计算标准GB 50217-2018 电力工程电缆设计标准GB 50168-2018 电气装置安装工程电缆线路施工及验收标准2026-08-11