Electrical Tests; Pe Conductor Resistance - Fronius CL 44.4 Delta Serviceanleitung

Electrical Tests

PE Conductor Re- The PE conductor resistance test is to be carried out with the cabinet doors open.
sistance -
-
-
-
-
-
1 Measuring instrument
2 Inverters
9 Measuring leads
-
-
*) These requirements relate to DIN VDE 0701-0702 and ÖVE/ÖNORM E8701-1. In addi-
tion, individual national requirements and standards must also be observed.
126
Ensure that the device to be tested is safely disconnected from the AC mains. The grid
leads (L1, L2, L3, N) must not be connected. Observe safety rules.
Ensure that the device to be tested is safely disconnected from the DC mains. DC ca-
bles must not be connected. There may be a DC voltage in the cables. Follow safety
rules.
During the measurement, all switches, controls, etc., must be closed.
AC protection and DC main switch must be activated.
The module grounding (if present) must be removed from the inverter during the in-
spection.
Disconnection is required from SolarNet and Datcom Ring.
Measurements are taken between the ground terminal (1) of the device and each
touchable, conductive part connected with the ground conductor (e.g. 2).
The resistance must not exceed 0.3 Ω *)
Example: Measurement of the ground conductor re-
sistance
(1) Ground terminal
(2) Example measurement point.
(2) (1)