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How to prevent cable trench water accumulation in substations during the rainy season

In recent years, the cable trench of a certain substation in Jinhua often experiences moisture and water accumulation during rainy days. Each inspection requires the treatment of water accumulation in the cable trench. According to station personnel, since 20 years ago, operation and maintenance personnel have visited the station more than 20 times, of which 12 require drainage operations. Especially during the rainstorm, the probability of ponding in the cable trench of the substation is higher, and the substation operation and maintenance personnel are required to arrive at the station to carry out pumping operations. It takes a lot of time to go back and forth to the substation each time, and the work efficiency is low, and there is a great personal safety risk in pumping water at the station during the rainstorm.

How to prevent cable trench water accumulation in substations during the rainy season
How to prevent cable trench water accumulation in substations during the rainy season

Construction technology of polymer moisture-proof sealing agent

In humid environments, indoor power facilities are increasingly facing various threats, which have a significant impact on the operation of electrical equipment. In electrical engineering, when the relative humidity is greater than 80% RH, it is called high humidity. High humidity is the main factor for electrical equipment accidents, and polymer moisture-proof sealing agents are particularly important. Below, let's learn about the construction process of polymer moisture-proof sealing agents.

Construction technology of polymer moisture-proof sealing agent
Construction technology of polymer moisture-proof sealing agent

How to do waterproof sealing for cables and wires in the distribution room when entering the house

At present, embedding steel pipes in the wall at the entrance of cables is a common method of cable waterproofing and sealing. When laying cables, large cross-section cables can be individually threaded through a single steel pipe. Waterproofing and sealing of cables is relatively simple and easy, and the effect of waterproofing and sealing can meet the design requirements. However, a few or even dozens of small cross-section cables can be threaded into their own steel pipe, The sealing between cables and their development has become a quite thorny issue, often leading to water seepage or leakage. Once the rainwater in the cable trench is not drained smoothly, the rainwater system will flow back along the cable trench, which is easily caused by the transformation and distribution room

How to do waterproof sealing for cables and wires in the distribution room when entering the house
How to do waterproof sealing for cables and wires in the distribution room when entering the house

It is very important to do a good job in waterproofing and sealing of building cables

Water and moisture leakage from building cables can affect the normal operation and service life of the line, so it is very important to do a good job in cable waterproofing and sealing within the building structure. So how is the cable sleeve hole waterproof?

It is very important to do a good job in waterproofing and sealing of building cables
It is very important to do a good job in waterproofing and sealing of building cables

凝露会对10 kV电缆环网柜造成的影响

凝露会对10 kV电缆环网柜造成的影响     1.1降低设备绝缘强度     1.2操作机构锈蚀     1.3二次回路短路

凝露会对10 kV电缆环网柜造成的影响
凝露会对10 kV电缆环网柜造成的影响

Preparation method and process of moisture-proof sealing agent

The implementation elements of moisture-proof sealing agent technology: The purpose of moisture-proof sealing agent is to provide polymer moisture-proof sealing materials and manufacturing methods to solve the above problems. The packaging methods are diverse, can be locally injected as a whole, has good packaging effect, is flat and beautiful, is convenient for later transformation, has a service life of more than 10 years, and is simple in construction, reduces the risk of small animal disasters, reduces weather accidents, and reduces erosion of power facilities in corrosive environments.

Preparation method and process of moisture-proof sealing agent
Preparation method and process of moisture-proof sealing agent

Construction Method of Sealing Leakage for Cable Waterproof Sealing

Research experiments have shown that the faults of medium and low voltage power cables in buildings are mostly caused by faults in the intermediate joints and terminal heads of the cables, as well as poor sealing and moisture infiltration, resulting in a decrease in insulation strength. However, the medium and low voltage power cable network mostly adopts a tree shaped power supply method, with a large number of cable terminal heads. In response to this situation, the cable waterproof sealing method is adopted for the sealing of structural damage points with small seepage areas.

Construction Method of Sealing Leakage for Cable Waterproof Sealing
Construction Method of Sealing Leakage for Cable Waterproof Sealing

小心蛇出没！封堵工作刻不容缓

       电表箱进出线口没有得到有效封堵，鼠蛇虫蚁等小动物就会通过孔洞钻进电表箱，存在安全隐患

小心蛇出没！封堵工作刻不容缓
小心蛇出没！封堵工作刻不容缓

What method is used for waterproof sealing of cable ducts

Have you ever encountered water and moisture seepage at the cable duct mouth in your daily life? Is it unknown to many people that waterproof sealing materials need to be used for cable duct sealing? So what is the effective method for waterproof sealing of cable ducts? Let's take a look together.

What method is used for waterproof sealing of cable ducts
What method is used for waterproof sealing of cable ducts
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