As I pointed out before electricity can be very dangerous. Here is some helpful advice from the HSE:
Always use a RCD device with portable electrical tools and appliances.
If equipment operating at 230 volts or higher is used, an RCD (residual current device) can provide additional safety. An RCD is a device which detects some, but not all, faults in the electrical system and rapidly switches off the supply. The best place for an RCD is built into the main switchboard or the socket-outlet, as this means that the supply cables are permanently protected.
If this is not possible a plug incorporating an RCD, or a plug-in RCD adaptor, can also provide additional safety.RCDs for protecting people have a rated tripping current (sensitivity) of not more than 30 milliamps (mA).
- Remember: an RCD is a valuable safety device, never bypass it;
- if the RCD trips, it is a sign there is a fault. Check the system before using it again;
- if the RCD trips frequently and no fault can be found in the system, consult the manufacturer of the RCD;
- the RCD has a test button to check that its mechanism is free and functioning. Use this regularly.
Following this advice could save your or another member of your familys life.
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