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What should be done when the fuses jump?

The fact that the fuses are "jumping" and the circuit breaker (s) are operating indicates a significant problem with the electrical installation.

The cause must be found before replacing the fuse or resetting the circuit breaker. A minimum of knowledge of the installation is necessary.

The distribution of circuits

The distribution of circuits

Your installation includes:
• a general circuit breaker (flap or push button) to cut the entire installation;
• a series of circuit breakers, depending on the age of your installation:
- porcelain pin fuses and lead fuse wires (to be urgently replace by a more modern system);
- cartridge fuses (housed in a screw cap well or in a tilting system), if possible;
- tilting mini-breakers;
• a series of specialized devices (remote or timer, discharger, programmer, etc.).
When an incident occurs, it is necessary, to restore the current in the circuits:
• identify the source of the failure;
• repair or disconnect the faulty device;
• replace the defective fuse with a new one, with the same amperage, or switch on the circuit breaker concerned.
It is also possible that the simple re-engagement of the general circuit-breaker is sufficient, since no fuse has been damaged. Always start with this operation.

Find the power failure

Find the power failure

A fuse or breaker never jump for no reason. If you have been careful to locate the circuits on the board, it will be easy for you to identify the room and generally the part of the installation and the appliance that is at fault: if it is, for example, the circuit-socket of the kitchen it is not difficult to determine the device that was working when the power went off. If there are more than one, simply unplug them, change the fuse or reset the circuit breaker, and test the devices one by one until one of them recovers. blow the fuse or circuit breaker.
Always replace fuses identically
A fuse never jumps because it is too weak, but because it overloads the circuit it is responsible for protecting. Never try to replace it with a stronger one, or even to shunt it altogether. The fault will seem repaired, but the overheating of the drivers may just set fire!

What should be done when the fuses jump?: jump

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