中压电力电缆金属屏蔽层截面积的计算方法探析  

Discussion on Method of Calculating Metal Shielding Layer Cross Section for Medium Voltage Power Cable

作　　者：姚永见 胡高耸 YAO Yongjian;HU Gaosong(CGN High-tech Nuclear Material Technology(Suzhou)Co.,Ltd.,Suzhou 215400,China;Henan Leshan Cable Co.,Ltd.,Zhumadian 463000,China)

机构地区：[1]中广核高新核材科技(苏州)有限公司,江苏苏州215400 [2]河南乐山电缆有限公司,河南驻马店463000

出　　处：《电工技术》2024年第5期200-201,213,共3页Electric Engineering

摘　　要：中压电力电缆金属屏蔽的实施方式分为铜带绕包屏蔽和铜丝疏绕屏蔽,其截面积的大小是根据故障电流容量要求设定的,不同金属屏蔽的截面积的计算方法不一样,按照国家标准中计算出的金属屏蔽的实际截面跟要求设定的数据存在偏差,可能会造成安全隐患或质量过剩。通过实例比较得出了两种屏蔽方式截面积合理的计算方法,为中压电力电缆金属屏蔽的工艺设计提供参考依据。The metal shielding for medium voltage power cables can be implemented through copper tape wrapping mode or copper wire braiding mode.The size of the cross-sectional area is determined based on the requirements of fault current capacity.The calculation methods for different metal shielding sizes may vary,and there may be deviations between the actual cross-sectional area of the metal shielding calculated according to national standards and the standard requirements.This could potentially lead to safety hazards or excessive quality.This paper compares and provides a reasonable calculation method for the cross-sectional area of the two shielding modes through examples,providing a reference for the process design of metal shielding for medium voltage power cables.

关 键 词：金属屏蔽 铜带绕包 铜丝疏绕 截面积 

分 类 号：TM247[一般工业技术—材料科学与工程]