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 calcula-tion 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.
metal shieldingcopper tape wrappingcopper wire braidingcross-sectional area
NETL
NSTL
维普
万方数据
