There’s a problem with fuses. On the face of it, testing would seem to be a one-shot deal — exceed the rated current and see if it blows. But once you know the answer, the device is useless. If only ...

When you're preparing for any kind of electrical work, the first (and most important) step is to turn off the power. Most modern homes have circuit breakers, but if your home is older, it may still ...

1. Most of us have ‘trip-switch’ fuses nowadays, instead of the old white fuse box. 2. Turn off your electricity at the mains before you do anything. You’ll see it in your fuse box – a larger switch ...