
有线电视及卫星电视接收系统 CATV and satellite television receiving system.
本工程室外设卫星电视接收天线及前端室,电视信号由卫星电视接收系统引入地下车库,再沿线槽敷设至弱电间电视分配箱,经分支分配再引线至电视出线口,出口电平为64±4dB。从分支器到有线电视出线口采用SYWV-75-5型同轴电缆,主干采用SWYV-75-9,12型同轴电缆,电视出口在办公室内距地0.3米墙上安装。
Satellite television receiving antenna and front-end chamber are provided in the outdoor. Television signals are introduced to the underground garage by the satellite television receiving system and to the TV distributing box inside the weak current chamber along the trunking, and then to the television outlet through the distribution of the branch. The outlet level is 64±4dB. Lines from the splitter to the CATV outlet adopt SYWV-75-5 type coaxial cable, and the trunk adopts SWYV-75-9 type 12 coaxial cable. TV outlet is mounted 0.3 above the ground in the office.
放大箱、分支器箱在弱电间挂墙明装,垂直线路沿线槽敷设。
Amplification and splitter boxes are open mounted on the wall in the weak current chamber; vertical lines are laid along the trunking.
电视插座路穿钢管在地板内及墙内暗敷
TV socket is buried in the floor and the wall by passing through the steel pipe.
有线电视系统放大器箱的配置、器件的选择、电缆的选择等由专业厂家根据本设计原则进行详细设计,电视前端设备由专业公司确定。
Configuration of CATV amplifier box, selection of device and cable shall be designed in detail by special manufacturer according to this design discipline; TV front-end equipment shall be confirmed by professional corporations.
消防泵房等消防设备采用双回路电源供电并在末端自动切换。
Fire equipments such as the fire pump chamber adopt double circuit power supply and make automatic switchover in the terminal.
线路沿电缆桥架或穿钢管沿墙、地板、顶板敷设至用电设备。
Lines are laid to utilization equipment alone the cable bridge frame or along the wall, floor and upper plate by passing through the steel pipe.
消防设备明敷钢管部分外涂防火涂料
Open laying steel pipes of fire equipment are spread with fire-retardant coating.
消防线路与其它线路同一线槽敷设时加装隔板
Partition shall be added when the fire control line is laid in the same trunking with other lines.
华译网北京翻译公司翻译过大量有关有线电视及卫星电视接收系统的文件资料。
Beijing Mandarin Chinese Translation Service Company has translated many technical documents in the field of CATV and satellite television receiving system.