本试验方法规定了鉴定和生产试验程序，以确定 绞合绝缘电缆间隙中阻水部件的有效性 导线阻碍纵向水渗透到导线中。电缆符合 之前版本的T-31-610无需重新测试。

This test method provides for qualification and production test procedures for determining the effectiveness of water blocking components incorporated into the interstices of the stranded and insulated conductor as an impediment to longitudinal water penetration into the conductor. Cables qualified under previous editions of T-31-610 do not need to be retested.