HANGZHOU HENMA ELECTRIC POWER TECHNOLOGY CO., LTD

Hangzhou Henma Power Technology Co., Ltd.

NEWS CENTER

The importance of sealing measures for cable shafts

Release time:

2023-10-24

Take preventive measures, avoid and reduce fire hazards, and prevent greater economic losses and fire accidents with less economic means; Fireproof and flame-retardant protection measures and technical treatment should be taken for the sealing of cable shafts to achieve multiple prevention effects such as fire prevention, dust prevention, and preventing short circuits and corrosion caused by small animals from burning; Reasonably set up fire prevention treatment areas to protect cables and equipment, and provide convenience for operators. The sealing of cable shafts is very important for ensuring the safe operation of the power system. The main reasons are as follows: 1. Preventing foreign objects from entering the shaft can prevent garbage, small animals, and other foreign objects from entering the shaft, and prevent cable insulation from being damaged or causing short circuits. 2. Isolating fire hazards and sealing the well can block the source of fire, prevent the rapid spread of fire through the shaft, and protect the safety of cables. 3. A well sealed structure to prevent illegal excavation of vertical shafts from stealing current can prevent it. 4. Keeping the well sealed can avoid water accumulation in the well, maintain a relatively closed environment, and facilitate cable heat dissipation. 5. A good sealing method for preventing pests and rodents can prevent moths and rodents from biting the cable insulation layer. 6. Ensure that the cable repair space is sealed and isolated, and the cable laying in the well is more orderly, which is conducive to cable fault detection and repair.

Take preventive measures, avoid and reduce fire hazards, and prevent greater economic losses and fire accidents with less economic means; Fireproof and flame-retardant protection measures and technical treatment should be taken for the sealing of cable shafts to achieve multiple prevention effects such as fire prevention, dust prevention, and preventing short circuits and corrosion caused by small animals from burning; Reasonably set up fire prevention treatment areas to protect cables and equipment, and provide convenience for operators.
Sealing of cable shafts is crucial for ensuring the safe operation of the power system, mainly due to the following reasons:
1. Prevent foreign objects from entering the well
Blocking can prevent foreign objects such as garbage and small animals from entering the well, and prevent cable insulation from being damaged or causing short circuits.
2. Isolate fire hazards
Sealing the well can block the source of fire, prevent the rapid spread of fire through the shaft, and protect the safety of cables.
3. Prevention of stealing current
A sound sealing structure can prevent illegal excavation of vertical shafts from stealing electricity.
4. Maintain the well environment
Sealing the well can avoid water accumulation in the well, maintain a relatively closed environment, and facilitate cable heat dissipation.
5. Prevention and control of pests and rodents
Good sealing can prevent moths and mice from biting the cable insulation layer.
6. Ensure cable repair space
After sealing and isolation, the cable laying in the well is more orderly, which is conducive to cable fault detection and repair.
7. Improve maintenance efficiency
The standard well sealing can be directly opened for maintenance, without the need to remove all sealing materials.
8. Extending the service life of cables
Blocking provides a good working environment for cables and reduces cable aging faults.
Therefore, strengthening the sealing work of cable shafts is very important for the safe and stable operation of the power system.