为避免通信、信号泪电力电缆被毀坏、碰伤、腐蚀及保证通信、信号工作的安全,当通信、信号和电力电缆等通过隧道时,应设置电缆槽。电缆槽的布置和设置条件,除符合有关专业要求外,还应符合下列规定:
In order to avoid the damage, bruise and corrosion of power cables of communication and signal tears and ensure the safety of communication and signal work, when the communication, signal and power cables pass through the tunnel, cable trough shall be set. The layout and setting conditions of cable trough shall meet the following requirements in addition to relevant professional requirements:
1.通信、信号电缆可设在一个电缆槽内,也可以分设,但通信、信号电缆必须和电力电缆分槽敷设,如果分槽敷设有困难时,电力电缆可沿隧道墙壁架设,但应有必要的防护措施:
1. The communication and signal cables can be set in one cable trench or separately, but the communication and signal cables must be laid in separate trench with the power cables. If it is difficult to lay in separate trench, the power cables can be erected along the tunnel wall, but necessary protective measures shall be taken:
2.通信、信号电缆槽的弯曲半径不宜小河北立体车库 消防报警器塑料配件 电缆接地箱 电缆保护接地箱 塑料土工格栅 消弧线圈装置 于1.2m,电力电缆槽的弯曲半径通常为电缆外径的6~30倍
2. The bending radius of communication and signal cable trough should not be less than 1.2m, and the bending radius of power cable trough is usually 6-30 times of cable outer diameter.
3.槽底有高低差时,纵向应顺坡连接
3. When there is height difference at the bottom of the groove, the longitudinal direction shall be connected along the slope.