Testing 30 Ma Residual Current Circuit Breakers Rccbs/Rcds - VOLTCRAFT GT-6000 Notice D'emploi

f) Testing 30 mA residual current circuit breakers RCCBs/RCDs
• The GT-6000 enables the measurement of the tripping time of permanently installed RCCBs/RCDs and portable
RCCBs/PRCDs with a rated residual current of 30 mA. The tripping time of the single rated fault current (initial
polarity 0°/180°) and the five-fold rated fault current (initial polarity 0°/180°) is measured in the automatic test
sequence.
• Generating a fault current of 30 mA proves that the RCCB/RCD triggers when the rated fault current is reached.
If the maximum contact voltage limit value of 50 V is exceeded, the symbol "UB > 50 V" appears on the display
and the test is stopped.
Before testing a RCCB/RCD, the 4 mm safety plug on the test cable must be removed from the test
socket (9).
The measurement can be influenced by the following events:
- A voltage between the protective conductor of the earthed socket and earth
- Leakage currents in the circuit downstream of the RCCB/RCD
- Other earthing equipment
- Devices that are switched downstream of the RCCB/RCD circuit breaker and that cause a longer
tripping time, e.g. capacitors or rotating machines.
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