Martindale ET4000 / ET4500 Measurements
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5.4 Testing RCDs
Various tests and measurements are required for the verification of RCD's in RCD
protected installations. The measurements conform to BS EN 61557-6.
The following measurements and tests (sub-functions) can be performed:
contact voltage,
trip-out time,
trip-out current and
RCD autotest.
See chapter 4.3 Function selection
for instructions on key functionality.
Figure 5.18: RCD tests
Test parameters for RCD test and measurement
TEST
RCD sub-function test [Uc, RCDt, RCD I, AUTO]
I
N
Rated RCD residual current sensitivity I
N
[10 mA, 30 mA, 100 mA, 300 mA,
500 mA, 1000 mA].
type
RCD type [AC, A, F].
starting polarity [ , , , ].
Characteristic and PRCD selection [selective , general non-delayed ].
MUL
Multiplication factor for test current [½, 1, 2, 5 I
N
].
Ulim
Conventional touch voltage limit [25 V, 50 V].
Connections for testing RCD's
Figure 5.19: Connecting the plug test cable and test leads
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