First, when installing primary and secondary fusion circuit breakers, ensure that the installation position is correct and stable. The circuit breaker should be installed in a dry, well-ventilated and easily accessible location for daily maintenance and troubleshooting. At the same time, the installation of the circuit breaker should be carried out vertically to ensure that its internal mechanism can work normally.
Secondly, wiring work is a key step in the installation process. When wiring, ensure that the insulation layer of the cable is intact and the connection of the terminal is firm and reliable. For primary fuse circuit breakers, special attention should be paid to whether its rated current and voltage match the circuit to prevent failures caused by overload or short circuit. For secondary fuse circuit breakers, it is also necessary to check whether its detection mechanism and trigger mechanism are sensitive and reliable.
In terms of maintenance, primary and secondary fusion circuit breakers should be inspected and tested regularly. The inspection content includes whether the appearance of the circuit breaker, the terminal, the fuse and other components are intact, and whether the working status of the circuit breaker is normal. During the test, special test instruments can be used to measure the circuit breaker's opening and closing time, operating current and other parameters to ensure that they meet the design requirements.
In addition, for circuit breakers that have already failed, they should be repaired or replaced in a timely manner. During the repair process, the product manual or relevant standards should be strictly followed to avoid secondary damage to the circuit breaker. If the fuse needs to be replaced, a fuse that matches the rated current of the circuit breaker should be selected and ensure that it is installed correctly.
Finally, for circuit breakers that have not been used for a long time, a comprehensive inspection and test should be carried out before reactivation. This can ensure that the circuit breaker can work normally when it is put back into use, avoiding performance degradation or failure caused by long-term idleness.
