It is indicated that the conventional method of DC withstand voltage test is defective for the acceptance test of XLPE cables, and the frequency-modulated series resonance test of 2U_0, 5 min is more appropriate for the said purpose.

• 指出交联聚乙烯绝缘电缆的交接试验沿用传统的直流耐压试验方法存在不足,较合适的方法是进行2U0,5 min的调频串联谐振试验。