除了钩焊,,含倒扣的connector固定方式, 还有没有另外种固定同时起双重固定作用, 好象还没见过,热缩套管套着焊接的外漏金属处 和 connector处算是起固定作用还是绝缘作用呢到底 以预防so that clearances and creepage distances between live parts and other metal parts cannot be reduced below the values specified for supplementary insulation, if the conductor becomes free at the soldered or welded joint or slips out of the crimped connection.