PausitoRoutine BuilderHow often should you test your RCD?
Test your RCD with its test button every month. If that is not practical, do it at least twice a year, when the clocks change.
The RCD (residual current device) cuts the power when current leaks away, for example through a person. A mechanism that never moves can stick. ABB therefore recommends a monthly test with the test button.
- Save open work and switch off sensitive devices
- Press the test button (T) on the RCD
- Check that the switch trips immediately
- Switch it back on; if it does not trip, call an electrician
More about this task
Why does it matter?
The RCD (residual current device) cuts the power when current leaks away, for example through a person. A mechanism that never moves can stick. ABB therefore recommends a monthly test with the test button.
How do you go about it?
Save open work and switch off sensitive devices. Press the test button (T) on the RCD. Check that the switch trips immediately. Switch it back on; if it does not trip, call an electrician.
What source is this answer based on?
This answer is based on: ABB.
2 to 5 minutes.
- access to the fuse box
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Work safely and follow the manual. If in doubt, or if it involves gas, combustion or working at height, leave it to a qualified professional.
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