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PV-ISOTEST
EN - 11
6. OPERATING INSTRUCTIONS
6.1.
RPE – CONTINUITY MEASUREMENT ON MODULES/STRINGS/PV FIELDS
The purpose of this measurement is performing a continuity test of the protective and
equipotential conductors (e.g.: from rod to earth and connected foreign earth) and earth
rods of SPDs on PV installations. The test must be carried out using a test current >
200mA according to the prescriptions of IEC/EN62446-1 and IEC/EN61557-4 guidelines.
6.1.1. Calibration of measuring cables
1. Position the cursor onto
RPE
by using the arrow keys
(
,
) and confirm with
ENTER
. The display shows the
following screen:
RPE
15/10 – 18:04
R
- - -
I t e s t
- - -
m A
STD 2.00
- - -
MODE
Lim.
>
<
2. Use the arrow keys
or
and select the position “
>
<
”.
The display shows the screen to the side.
RPE
15/10 – 18:04
R
- - -
I t e s t
- - -
m A
STD 2.00
- - -
MODE Lim.
>
<
3. Connect the measuring cables to each other as shown in Fig. 4.
Fig. 4: Compensation of the measuring cables resistance