How are RCDs Tested?

When RCD tests are carried out, it will trip the RCD and disconnect the circuit that it protects, so any electrical equipment will need to be turned off prior to RCD Testing being carried out. Each RCD Test only takes approximately 5 minutes for each RCD. We suggest that RCD Testing is carried out after hours, before the office opens, or you will need to advise your staff that the power will be disrupted for each circuit, and that there computers will need to be turned off.