Older ones have fuse holders and when a fuse is blown it must be replaced or rewired.
Old fuse box trip switch.
The little bars were then replaced with fuses which were easier to change when they melted and then came the electrical panel with various levers.
If a fault develops a switch is tripped and the circuit is broken.
If the switch trips again you ll know it s the last appliance that you plugged in and switched on.
Change a fuse in a traditional fuse box.
Here we ll talk you through how to work out why your electric keeps tripping and how to repair a tripped fuse.
In the case of loss of electric light or power your fuse box or consumer unit will either have fuses or trip switches.
Turn off and unplug the appliance before resetting the switch.
The expression trip the fuse has gone out of fashion.
Once reset plug your appliances back in one at a time and switch them back on.
Our presenter locates a traditional fuse box where she rewires the blown fuse.
In a traditional fuse box each fuse.
How does a fuse work.
Every time there was a power overload these little bars melted and had to be replaced.
Unplug all of your appliances and try resetting the fuse switch.
Modern electric circuits are fitted with a circuit breaker fuse system.
A fuse switch that keeps tripping is usually caused by a faulty electrical item or an overloaded circuit.