Fronius Eco 15.0-3-208 US, Руководство по установке

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57
EN-US
Direct method - Ground conductor current measured using ammeter on the ground con-
ductor
1 Measuring device
2 Inverter
8 Isolated setup of test piece
9 Measuring line
Examples of measuring the ground conductor current
Differential current method - Ground conductor current measured using an ammeter on
the N and L conductors
As with an FI switch, the currents between the outer conductor (L) and the neutral conduc-
tor (N) are compared using a converter. The difference is displayed.
1 Measuring instrument
2 Inverter
9 Measuring line
Examples of measuring the ground conductor current
The ground conductor leakage current must not exceed the limit value of 3.5 mA during
this measurement (direct or differential current method) **).
**) These requirements comply with DIN VDE 0701-0702 and ÖVE/ÖNORM E8701-1. Also
refer to the applicable requirements and standards in your country.
Contact Current - Measurement should only be carried out once measurement of ground conductor cur-
rent has been carried out successfully
- The device must remain in operation.
Measurements are taken between a grounded point and the touchable, conductive parts
which are not connected with the ground conductor.
PE
mA
L1
1
2
9 9 9
N
PE L1 N
8
PE L1
1
2
9 9 9
N
PE L1 N
mA