Testing Rccbs With 5 Times I N (10 Ma, 30 Ma And 100 Ma); Testing Rccbs With 150 Ma - Gossen MetraWatt ProFiTEST C-GB int. Operating Instructions Manual

!
Attention!
If a biasing current is present in the system it is superimposed
onto the residual current generated by the instrument during
testing and influences measured values for contact voltage and
tripping current.
According to DIN VDE 0100, part 610, measurement may be performed
with rising current in order to evaluate RCDs, and contact voltage for
nominal residual current I may by calculated based upon the measured
N
values.
The faster and simpler method is thus generally preferred (see chapter
6.1).
6.3.2 Testing RCCBs with 5 Times I
Time to trip is measured with 5 times nominal residual current.
The test can be started with the positive half-wave „
half-wave " ".
Both measurements must be performed. The longer time to trip is
decisive regarding the condition of the tested RCCB. Both values must be
less than 40 ms.
GMC-I Messtechnik GmbH
(10 mA, 30 mA and 100 mA)
N
", or the negative

6.3.3 Testing RCCBs with 150 mA

Time to trip is measured with a 150 mA constant current.
The test can be started with the positive half-wave „
half-wave " ".
Both measurements must be performed. The longer time to trip is
decisive regarding the condition of the tested RCCB. Both values must be
less than 40 ms.
", or the negative
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