Beha-Amprobe GT-650, Руководство пользователя

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GT-650/GT-900 User's Manual
45
Description of test steps (all available test steps are described below, please
see the table above which test steps are implemented depending on selected
PRCD type):

Visual inspection
Follow the instructions in section “Visual inspection” on page 20. Confirm pass
of the visual test by the “OK” menu key.

Protective earth continuity R
PE
The measurement is carried out by using the test current of 0.2 or 5.0 A
(selectable parameter). Limit value is adjustable from 0.01 to 11.0

. Both
parameters (test current and limit value) can be set by using the “PAR” menu
key in idle display mode. Limit value can be also calculated on bases of entered
cross section and length of the PRCD cable. In order to enter the limit value
with "+" and "-" menu keys directly without calculation, press the "
"
menu key first.

Insulation resistance R
INS
input
The insulation resistance is measured on the input side of the PRCD by using
test voltage of 500 V (fixed parameter). Limit value for R
INS
is fixed and pre-set
to 0.15 M

.

Insulation resistance R
INS
output
The insulation resistance is measured on the output side of the PRCD at open
PRCD switch by using test voltage of 500 V (fixed parameter). The limit value
for R
INS
is fixed and pre-set to 1.00 M

.

Earth leakage current I
PE
(differential method)
The measurement is done at closed PRCD switch in two steps (two mains
voltage polarities). The polarity is exchanged automatically. Limit value for I
PE
is fixed and pre-set to 3.50 mA.

Touch leakage current I
T
(direct method)
The measurement is done at closed PRCD switch in two steps (two mains
voltage polarities). The polarity is exchanged automatically. Limit value for I
T
is
fixed and pre-set to 0.50 mA. While this test all conductive parts which are not
connected to PE of the PRCD must be tested, the worst one has to be saved.
Note: The ON button would be such a conductive part.

Functionality of the TEST button (TEST SWITCH)
After pressing the TEST button of the PRCD, both L and N conductors must be
switched off from mains by the PRCD switch. The test result is displayed as PASS
or FAIL.

Trip out time at I

N/2
, AC current
Test current is AC.
PRCD must not trip at this current, max. measurement time/range is 300 ms

Trip out time at I

N
, AC current
Test current is AC.
PRCD must trip within 300 ms (200 ms for PRCD-S+).

Trip out time at I

N/2
, +pulsed current
Test current is positive pulsed (required for A type of PRCD).
PRCD must not trip at this current, max. measurement time/range is 300 ms.

Trip out time at I

N
, +pulsed current
Test current is positive pulsed (required for A type of PRCD).
PRCD must trip within 300 ms (200 ms for PRCD-S+).