Hangzhou Henma Power Technology Co., Ltd.

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Renovation of old substation walls for water seepage, waterproofing, and fire prevention sealing


Release time:

2020-02-09

Currently, there is a common phenomenon in many old-fashioned substations, where there is a chaotic and disorderly sealing at the junction between the wall and the cable, where the wall is in direct contact with the cable, and there is no pipeline connecting to the wall in the middle. The operation of cables generates a certain amount of heat and undergoes thermal expansion and contraction. During a certain period of time, they are in a state of low-frequency vibration. Therefore, after solidification, the cement wall cannot achieve a perfect seamless contact with the running cable, and the edges and corners of the cement are hard after solidification. At the same time, due to the vibration generated by cable operation, the problem of thermal expansion and contraction friction easily damaging the surface of the cable is becoming increasingly apparent. At the construction site, Hangzhou Hengma Power Technology Co., Ltd. recently renovated the overall waterproof and fireproof sealing of the through-wall cables in a Chengcheng substation in Jiangsu. The entire process is divided into four steps: demolishing the wall, building a framework, shaping the wall, and cleaning and integrating. It effectively standardizes the entry cables and leaves reserved pipelines for later maintenance. Construction steps

       Currently, there is a common phenomenon in many old-fashioned substations, where there is a chaotic and disorderly sealing at the junction between the wall and the cable, where the wall is in direct contact with the cable, and there is no pipeline connecting to the wall in the middle. The operation of cables generates a certain amount of heat and undergoes thermal expansion and contraction. During a certain period of time, they are in a state of low-frequency vibration. Therefore, after solidification, the cement wall cannot achieve a perfect seamless contact with the running cable, and the edges and corners of the cement are hard after solidification. At the same time, due to the vibration generated by cable operation, the problem of thermal expansion and contraction friction easily damaging the surface of the cable is becoming increasingly apparent.

 

Construction site

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       Hangzhou Hengma Power Technology Co., Ltd. recently renovated the overall waterproof and fireproof sealing of the through-wall cables in a Chengcheng substation in Jiangsu. The entire process is divided into four steps: demolishing the wall, building a framework, shaping the wall, and cleaning and integrating. It effectively standardizes the entry cables and leaves reserved pipelines for later maintenance.

construction procedure

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