两种电缆耐压试验技术分析

摘要

The DC voltage withstand test and ultra-low frequency voltage withstand test are introduced. Through comparison it is pointed out that excessively high DC electric field can cause unnecessary further damage to cables, which shows that ultra-low frequency technology is the best choice for voltage withstand test.%　　主要介绍了直流耐压试验和超低频耐压试验的相关内容，通过比较，指出过高的直流电场对电缆带来的不必要的进一步的损伤，从而说明超低频技术是进行耐压试验的最佳技术。