| Residual
Current Device
An RCD, or Residual Current Device,
is a switching device that trips a
circuit under certain conditions,
and disconnects the electricity supply.
If your electrical installation includes
one or more RCDs, test them regularly.
You can do this by following the instruction
label, which should be near the RCD.
The label should read as follows:
‘This installation, or part
of it, is protected by a device which
automatically switches off the supply
if an earth fault develops.
Test quarterly (every three months)
by pressing the button marked ‘T’
or ‘Test’.’ The
device should switch off the supply.
You should then switch it back on
to restore the supply. If the device
does not switch off the supply when
you press the button, contact an electrician.
Testing the button every three months
is important. However, do not hold
the test button for a long period
if the device does not trip. If the
RCD does not switch off the supply
when you press the test button, get
advice from a registered electrician. |
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Definition from Wikipedia, the free
encyclopedia
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