数字通信用水平对绞电缆屏蔽结构型式的讨论  

Study on the shield construction in horizontal twisted pair category cables

作　　者：刘江锋[1] 阮江军[1] 历天威[1] 彭迎[1] 

机构地区：[1]武汉大学电气工程学院,湖北武汉430072

出　　处：《电线电缆》2004年第5期30-32,36,共4页Wire & Cable

摘　　要：随着局域网通信传输速率的提高,传输介质必须使用屏蔽型数字通信用水平对绞电缆。目前使用的屏蔽数据通信电缆通常为单层或双层铜丝编织结构,生产效率低,成本高。本文从理论及实践出发,说明采用铝塑复合带和稀疏编织的铜丝网等组合屏蔽结构,可以提高生产效率、降低成本,而且具有较好的屏蔽效能。With increased transmission rate of LAN communication, it is necessary to use shielded horizontal twisted pair category cables. At present, the shielded category cables use single or double copper braid as shield, which features low productivity and high costs. This paper demonstrates theoretically and practically that the use of the composite shield consisting of laminiated aluminium-polymer tape and open copper braid will raise productivity and reduce costs as well as improve the shielding effectivieness.

关 键 词：数字通信 屏蔽效能 电缆 传输介质 双层 数据通信 铜丝 信用水平 网通 生产效率 

分 类 号：TM153.5[电气工程—电工理论与新技术] TN914[电子电信—通信与信息系统]