Discussion on Method of Calculating Metal Shielding Layer Cross Section for Medium Voltage Power Cable
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
万方数据
维普
