Figure 5.6.2: RCD test connection, testing with
shockproof plug
Figure 5.6.3: RCD test connection, testing with test
leads
Figure 5.6.4: Display for phase position L to L/L1
and N to N/L2
Figure 5.6.5: Display for phase position N to L/L1
and L to N/L2
If the test instrument shows the pin assign-
ment in compliance with Figure 5.6.5, i.e. the
symbol ‘turn mains plug” (5) is blinking, the
test may not be started. When starting the test,
an acoustic signal is audible. Then, the shock-
proof plug has to be turned or L and N have to
be exchanged for the test leads connected.
For socket testing touch contact electrode 'PE'
(21).
If the instrument displays the symbols (14),
'socket error’ (4), and 'PE error’ (16), or 'con-
tact voltage' (15) as shown in Figure 5.6.6, the
protective conductor (PE) is open, or a voltage
is present! This is a fatal error and must im-
mediately be eliminated!
Figure 5.6.6: PE error display
24
Contact Voltage and Earthing Resistance Test
PTDB90510001.qxd 02.03.2006 12:23 Uhr Seite 68
