Your property will have some of the following
Mains switchThe mains switch allows you to turn off the electricity supply to your
electrical installation. Some electrical installations have more than one
mains switch, for example, if your home is heated by electric storage
heaters, you may have a separate consumer unit (fuse box) for them.
The consumer unit should be easy to get to, so find out where the
mains switch is to turn the electricity off in an emergency.