HANGZHOU HENMA ELECTRIC POWER TECHNOLOGY CO., LTD

Hangzhou Henma Power Technology Co., Ltd.

NEWS CENTER

Hebei 110kV Substation Incoming Line Waterproof Sealing Project

Release time:

2020-02-09

There were many thunderstorms and typhoons in August, and a rainstorm came down, and the rainwater flowed along the cable duct to the cable trench. Even though the hole was originally blocked with cement, because the water pressure was too high, the cement was washed away, resulting in serious water accumulation in the cable trench. Looking at the pool in the trench, do you also face this problem? Last week, our company's technicians visited the incoming basement of a 110 kV substation of a power supply company in Hebei Province. Due to the continuous rainstorm weather, the water depth in the basement was as high as 2 meters. Some of the holes originally sealed with cement also fell off, and some are constantly flowing out. In order to meet the requirements of the leadership of the power company, an inflatable cable duct sealing device was installed to completely seal the cable duct opening, The construction personnel first need to clean the accumulated water in the ditch. Due to the depth of the water, it took them an hour to pump it out completely. However, the drainage system is not perfect, and the discharged water flows towards nearby farmland, which can easily cause harm to crops. In this situation, we strongly recommend using an inflatable cable duct sealing device. It can not only achieve a completely waterproof state, but also be used for both empty and threaded pipes. It is easy to install, disassemble, and maintain afterwards. During the installation process, our company provided explanations to the construction personnel. During the subsequent installation process, the construction personnel directly called for simple and convenient express delivery. After mixing with cement and waterproof agent, the traditional sealing method has obvious drawbacks. The disadvantage of traditional sealing is that the material and pipeline may crack due to thermal expansion and contraction, resulting in the loss of waterproof function. In addition, as long as the cable is repaired by splicing, it will damage the pipeline sealing material and require re sealing. It is also inconvenient for future cable expansion, as the pipeline has already been fixed, which may damage the entire pipeline.

Last week, our company's technicians visited the incoming basement of a 110 kV substation of a power supply company in Hebei Province. Due to the continuous rainstorm weather, the water depth in the basement was as high as 2 meters. Some of the holes originally sealed with cement also fell off, and some are constantly flowing out. In order to meet the requirements of the leadership of the power company, an inflatable cable duct sealing device was installed to completely seal the cable duct opening. The construction personnel first drained the accumulated water in the trench, Due to the deep accumulation of water, it took a full hour to remove it. However, the drainage system is not perfect, and the discharged water flows towards nearby farmland, which can easily cause harm to crops.

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In this situation, we strongly recommend using an inflatable cable duct sealing device. It can not only achieve a completely waterproof state, but also be used for both empty and threaded pipes. It is easy to install, disassemble, and maintain afterwards. During the installation process, our company provided explanations to the construction personnel. During the subsequent installation process, the construction personnel directly called for simple and convenient express delivery.

After mixing with cement and waterproof agent, the traditional sealing method has obvious drawbacks.

The disadvantage of traditional sealing is that the material and pipeline may crack due to thermal expansion and contraction, resulting in the loss of waterproof function. In addition, as long as the cable is repaired by splicing, it will damage the pipeline sealing material and require re sealing. It is also inconvenient for future cable expansion, as the pipeline has already been fixed, which may damage the entire pipeline.