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电缆进户不论是用穿墙保护管,还是用电缆沟,在雨季室外土层中的饱和水从保护管与电缆的间隙或沿电缆沟进入室内,是多年来存在的通病,严重危及供电安全。我们在北京科技大学燕郊冶金实验厂工程中,采用建筑拒水粉做电缆进户通道的隔水层,解决电缆通道的防水,获得成功。其工艺简单,造价低廉,实用性强,经过雨季考验,效果良好。现
Whether the cable enters the house through the wall protection pipe or the cable trench, the saturated water in the outdoor soil layer in the rainy season enters the room from the gap between the protection pipe and the cable or along the cable trench, which is a common problem for many years and seriously jeopardizes the power supply security. . In the project of Yanjiao Metallurgical Experiment Factory of Beijing University of Science and Technology, we used the building water-repellent powder as the water-repellent layer of the cable entrance channel to solve the waterproof of the cable channel and achieved success. The process is simple, the construction cost is low, and the utility is strong. After the rainy season test, the effect is good. Now