1. Wire and cable damage caused by transmission voltage overload
In the process of power transportation, most of the damage of wires and cables is caused by the direct action of external forces, and some are affected by natural disasters, resulting in the disconnection of wires and cables and the inability to supply power normally. The fault of wires and cables in buildings is due to the excessive load of wires, which leads to the increase of vertical pressure on wires and cables and the rupture of their external insulation layer. In addition, it also includes some human factors, such as the materials purchased by the construction team do not conform to the construction design regulations, or the construction personnel do not carry out the construction according to the standards, which will lead to the damage of wires and cables.
2. Wire and cable damage caused by external mechanical force
The materials of wires and cables have a certain pressure range. Once the pressure is too high, the insulation layer of wires and cables will be burned out.
In addition, lightning strike will also lead to overload voltage of wires and cables, and eventually damage the cables.
Therefore, the power grid dispatcher must distribute the power in strict accordance with the national regulations to ensure that the voltage of the transmission line does not exceed the maximum value it can bear,
To avoid damage to wires and cables. Residents in economically developed areas have a large demand for electricity, and the distance of power transportation is relatively long,
If we do not pay attention to it, the above problems are easy to occur, and serious accidents will occur, endangering the life and property safety of residents.
3. Chemical carbonization of wires and cables caused by physical industry
Wires and cables will generate heat energy during power transmission, which may cause certain damage to their own materials,
Therefore, in the process of line design, a heat dissipation device should be added to quickly dissipate the heat energy and prevent the carbonization of the insulation layer of wires and cables,
Extend its service life.
4. Aging of insulation sheath
In traditional architectural design, many cables are exposed at the wall joints of buildings. Without protective devices, wires and cables are prone to aging,
Especially in summer, affected by thunderstorms and humid air, this kind of aging wire is more prone to failure, which seriously affects the use safety of wires and cables.
5. Wire and cable quality problems
The design principle of wires and cables seems simple, but in fact the requirements for detailed design are extremely high. Once the cable itself has quality problems, it will affect the normal transmission of power。
Therefore, in order to avoid short circuit and other phenomena, designers need to give strict requirements on the quality of wires and cables, and link hubs for different cables
Carry out scientific design. At present, the quality problems of wires and cables in China are relatively serious, and the design of waterproof cables does not meet the actual requirements; Unreasonable design of cable promotion,
It eventually led to a series of transmission failures.
In the process of power transportation, most of the damage of wires and cables is caused by the direct action of external forces, and some are affected by natural disasters, resulting in the disconnection of wires and cables and the inability to supply power normally. The fault of wires and cables in buildings is due to the excessive load of wires, which leads to the increase of vertical pressure on wires and cables and the rupture of their external insulation layer. In addition, it also includes some human factors, such as the materials purchased by the construction team do not conform to the construction design regulations, or the construction personnel do not carry out the construction according to the standards, which will lead to the damage of wires and cables.
2. Wire and cable damage caused by external mechanical force
The materials of wires and cables have a certain pressure range. Once the pressure is too high, the insulation layer of wires and cables will be burned out.
In addition, lightning strike will also lead to overload voltage of wires and cables, and eventually damage the cables.
Therefore, the power grid dispatcher must distribute the power in strict accordance with the national regulations to ensure that the voltage of the transmission line does not exceed the maximum value it can bear,
To avoid damage to wires and cables. Residents in economically developed areas have a large demand for electricity, and the distance of power transportation is relatively long,
If we do not pay attention to it, the above problems are easy to occur, and serious accidents will occur, endangering the life and property safety of residents.
3. Chemical carbonization of wires and cables caused by physical industry
Wires and cables will generate heat energy during power transmission, which may cause certain damage to their own materials,
Therefore, in the process of line design, a heat dissipation device should be added to quickly dissipate the heat energy and prevent the carbonization of the insulation layer of wires and cables,
Extend its service life.
4. Aging of insulation sheath
In traditional architectural design, many cables are exposed at the wall joints of buildings. Without protective devices, wires and cables are prone to aging,
Especially in summer, affected by thunderstorms and humid air, this kind of aging wire is more prone to failure, which seriously affects the use safety of wires and cables.
5. Wire and cable quality problems
The design principle of wires and cables seems simple, but in fact the requirements for detailed design are extremely high. Once the cable itself has quality problems, it will affect the normal transmission of power。
Therefore, in order to avoid short circuit and other phenomena, designers need to give strict requirements on the quality of wires and cables, and link hubs for different cables
Carry out scientific design. At present, the quality problems of wires and cables in China are relatively serious, and the design of waterproof cables does not meet the actual requirements; Unreasonable design of cable promotion,
It eventually led to a series of transmission failures.
