Does the ambient temperature affect the operation of the high and low voltage distribution box

The ambient temperature has an important effect on the operation of the distribution box. Whether it is low temperature or high temperature, it will affect various components and systems inside the distribution box to different degrees, thus affecting the stability and reliability of the entire distribution system. Therefore, the design and use of distribution box need to fully consider the environmental temperature factor, and take the corresponding prevention and measures.
Effect of low temperature on distribution box
1. The conductor becomes hard
In a low temperature environment, the flexibility of the conductor is reduced and it is easy to harden, which may cause the cable to break due to excessive force in the straight line. Therefore, when the distribution box is used in the winter or cold environment, you need to strengthen protection measures for the conductor, such as installing protective sleeves or using soft copper wires with good bending ability at low temperature, to improve the bending ability and flexibility of the line.
2, electrolytic capacitor performance decline
Low temperature will weaken the electrochemical reaction, which will affect the performance of the capacitor. When the ambient temperature is lower than the operating temperature of the capacitor, the capacitance value of the capacitor will decrease, which may cause the capacitor to fail to work normally, thus affecting the stability of the distribution system. Therefore, special attention should be paid to the use and maintenance of capacitors in low temperature environment.
3, electrolytic capacitor leakage
In the low temperature environment, the internal electrolyte of electrolytic capacitor will solidify, which leads to the capacitor can not work normally, and even the situation of leakage. Therefore, when electrolytic capacitors are used in low temperature environment, appropriate insulation measures should be adopted, such as the use of insulation cover.
4. Poor contact
Low temperatures will harden the metal, resulting in poor contact or reduced contact area, resulting in increased resistance and decreased current capacity. Therefore, in a low-temperature environment, use high-quality metal materials for electrical connections such as wiring terminals in the distribution box, and ensure that the contact area and contact pressure are sufficient to ensure electrical connection stability and reliability.
Influence of high temperature on distribution box
1. Aging of insulation materials
High temperature deteriorates the insulation materials inside the distribution box, which reduces the insulation performance and increases the risk of electrical faults. Therefore, in a high temperature environment, you need to periodically check and test the insulation materials inside the distribution box to ensure that they work properly.
2. The temperature of electronic components is too high
High temperature will increase the internal temperature of components, thus affecting the service life and performance of components. Especially for the electronic components used in the distribution box, such as capacitors, inductors, etc., special attention should be paid to the influence of high temperature on its working stability and life.
3. Cables are aging and fused
In a high temperature environment, the insulation materials of cables deteriorate and the electrical performance of cables deteriorates. In addition, the conductors of cables may be easily fused in a high temperature environment, affecting the system stability. Therefore, in a high-temperature environment, use high-temperature anti-aging cables, and maintain and check the cable status.
4. The contact area is reduced
High temperature also causes the contact area to decrease and the resistance to rise, which leads to the current capacity to decrease. Therefore, in a high temperature environment, use high-quality metal materials for electrical connections such as wiring terminals in the distribution box and ensure that the contact area and contact pressure are sufficient to ensure the stability and reliability of electrical connections.