live cable

We tried to change our landing ceiling pendant and it is now not working. The lights in the upstairs 3rd bedroom and loft are also not working (presumably as they are on the same circuit), but the upstairs bathroom and two bedrooms work. The light is connected to two switches, one upstairs and...

We're just pulling down a wall in our house and have found the cable for the old electric shower (since replaced with a thermostatic one) and it's still live!!! *Scared face* I'm not good enough with electrics to go routing around in a consumer unit and unfortunately the cable goes straight into...