5000A enclosed bus ductDuring operation, most short circuits are caused byEnclosed bus ductThe load is caused by a short circuit in electrical equipment. Short circuits in electric motors are common, and even with the installation of a motor maintainer, once a short circuit occurs in the motor, the maintainer will block the power supply to the motor. But during this process, before the motor maintenance device blocks the power supply,Enclosed bus ductIt was hit by a short circuit, and the higher the power of the motor, the more likely it is to experience a short circuit problemEnclosed bus ductThe greater the impact.Enclosed bus ductOnly acceptable short circuits can be calledEnclosed bus ductThe short-circuit strength, also known as the short-circuit allowable current capacity of enclosed bus ducts. Short circuit strength reflectsEnclosed bus ductOnly those who can accept short-term short-circuit currents (additional short-term withstand current and additional peak withstand current) can experience thermal and electrical stresses caused by short-circuit currents. Thermal stress can damageEnclosed bus ductThe insulation function of insulation materials can be damaged by electrical stressEnclosed bus ductThe mechanical structure. The greater the short-circuit strength,Enclosed bus ductThe greater the reliability after being put into operation. To verifyEnclosed bus ductThe short-circuit strength,Enclosed bus ductWe need to conduct a short-circuit strength test.

Notes:

1. There should not be excessive deformation. ifEnclosed bus ductAfter the short-circuit current surge,Enclosed bus ductThe electrical clearance and creepage interval still meet the requirements and do not hinder the normal connection of the tapping unit,Enclosed bus ductWhen there are no signs of damage to the insulation and insulation supports of the components, it is agreed that there will be slight deformation of the busbar;

2.Enclosed bus ductThe insulation still meets the requirements;

3. The parts used for connecting the busbar should not be loosened or dropped;

The function of maintaining grounding devices should not be weakened;

5. Do not damage the protection level;

6. No need for repair to fully experience the pressure test. National standard forEnclosed bus ductThe short-circuit strength has not been regulated, but it is requested to establish rules for the value of short-term withstand current in the product specifications.

3 ways to solve it5000A enclosed bus ductShort circuit issue:

1. Replace damaged components

Short circuits are often caused by damage to the insulation layer of wires, erosion of sockets, and aging of switches, requiring direct replacement of damaged components.

2. Repair or replace wires

The cable needs to be rewired if it is punctured by nails or mice, and temporary wrapping with adhesive tape should be avoided.

3. Improve the wiring environment

Avoid direct contact between wires and metal, wire through conduit and install leakage protection to reduce the risk of further short circuits.

The key to handling a short circuit in a circuit is to locate it first and then repair it, and the detection should be systematic and repaired. Don't just deal with surface faults, otherwise the risk of short circuits will quickly reoccur.