1、电缆桥架从正常环境穿墙进入防火、防爆的环境时，墙上应安装相应的密封装置。
1. When the cable bridge traverses the wall from the normal environment to the fire-proof and explosion-proof environment, the corresponding sealing device should be installed on the wall.
2、电缆桥架从室内穿墙至室外时，在墙的外侧应采取防雨措施。
2. When the cable bridge traverses the wall from indoor to outdoor, rain-proof measures should be taken on the outside of the wall.
3、电缆桥架从室内穿墙至室外较高处安装时，电缆桥架应下倾斜延长适当距离，然后再向上架设，符合安装规范 同时防止雨水顺电缆桥架流入室内。
3. When the cable bridge is installed from indoor through the wall to outdoor higher place, the cable bridge should be inclined downward to extend the appropriate distance, and then erected upward, which conforms to the installation specifications and prevents rainwater from flowing into the indoor along the cable bridge.
4、电缆桥架过伸缩沉降缝时，电缆桥应断开，断开距离以100mm左右为宜。
4. When the cable bridge overpasses the expansion settlement joint, the cable bridge should be disconnected, and the disconnection distance should be about 100 mm.