User manual

25
VDE 0100-compliant demonstration case
Content
1. Introduction ........................................................................................................................ 26
1.1 General description .............................................................................................................. 26
1.2 General warnings ................................................................................................................. 26
1.3 Meaning of the warning and note symbols on the front side................................................ 27
1.4 List of feasible measurements ............................................................................................. 28
2. Connecting the demonstration case to the mains supply ............................................. 28
3. Description of the front side ............................................................................................. 29
4. Fault simulation.................................................................................................................. 30
5. Measurements by means of the BENNING IT 110 / IT 120.............................................. 31
5.1 Continuity of the protective conductor.................................................................................. 31
5.2 Insulating resistance ............................................................................................................ 32
5.3 Loop impedance................................................................................................................... 33
5.3.1 Loop impedance and short-circuit current in the TN system................................................ 33
5.3.2 Loop impedance in the TT system and RCD ....................................................................... 34
 /LQHLPSHGDQFHPDLQVLQWHUQDOUHVLVWDQFH......................................................................... 35
5.5 Contact voltage, tripping time and tripping current of RCDs ................................................ 36
 (DUWKLQJUHVLVWDQFHWKUHHZLUHPHDVXULQJPHWKRG ............................................................ 37
6. Other testing and measuring possibilities ...................................................................... 39
6.1 Testing by means of the DUSPOL voltage tester................................................................. 
6.2 Measuring by means of the digital multimeter / digital current clamp multimeter................. 40
7. Technical data..................................................................................................................... 41
8. Maintenance ....................................................................................................................... 41
8.1 Cleaning ............................................................................................................................... 41
8.2 Service ................................................................................................................................. 41
9. Scope of delivery ............................................................................................................... 42