英国Raychem有限公司采用该公司最近研制成的Rayfos系统,把光缆以500 mm～700 mm螺旋节距缠绕在现有的架空电力线上,使数据处理、遥测和音频通信等有了一种便宜的悬挂体。一种专门设计的安装机器把光纤螺旋地缠绕在架空导体上。这种设备可升到电力线上面。用一根拖绳从地面牵引。该设备能适应各种类型的导体及其连带的中跨度绞接头。视地形而定,一台安装设备每天能敷设3～4 km的光缆。光缆采用二芯或四芯的 Raychem Co., Ltd. of the United Kingdom used the Rayfos system recently developed by the company to wind optical cables around existing overhead power lines with a helical pitch of 500 mm to 700 mm, resulting in a cheap suspension for data processing, telemetry and audio communications body. A specially designed mounting machine spirals the optical fiber around an overhead conductor. This device can rise above the power line. Use a tow rope to pull from the ground. The device accommodates all types of conductors and their associated midspan hinges. Depending on the topography, a single installation can carry 3 to 4 km of fiber cable per day. Fiber optic cable with two or four core