铁道部于1983年4月14～20日在长沙召开长途通信电缆设计、施工、维修技术经验交流会。会议期间听取了部长途通信电缆施工技术研究小组1982年工作汇报,并交流了28篇文章。会议讨论通过了将小同轴压接工艺补充进小同轴电缆接续操作规则中去,修订了低频回线三阶段平衡法操作细则。 The Ministry of Railways convened the exchange of experience in the design, construction and maintenance of long distance telecommunication cables in Changsha from April 14 to April 20, 1983. During the meeting, he heard the work report of the construction technology research group of ministerial communication cables in 1982 and exchanged 28 articles. Meeting discussed and adopted the small coaxial crimping process added to the small coaxial cable connection rules to go, revised the low-frequency loop three-phase balance method of operation.