COMBI521
EN - 3
6.7.10.
Verification of protection against indirect contacts (TN systems) .......................................... 70
6.7.11.
Anomalous situations ............................................................................................................. 72
6.8.
LoZ: Line/Loop impedance with high resolution .............................................................. 75
6.9.
1,2,3: Phase sequence and phase concordance test ..................................................... 76
6.9.1.
Anomalous situations ............................................................................................................. 79
6.10.
LEAK: Leakage current measurement ............................................................................ 80
6.11
AUX: Measure environmental parameters with external probes ..................................... 82
6.10.
V%: Voltage drop of mainS ........................................................................................... 84
6.10.1.
Anomalous situations ............................................................................................................. 87
6.11
PQA: Measuring mains parameters in single-phase systems ......................................... 90
6.11
EVSE: Safety checks on recharging stations for electric cars ......................................... 92
7.
STORING RESULTS ................................................................................................ 112
7.1.
Saving measures ........................................................................................................... 112
7.2.
Recall of data to display and memory deletion .............................................................. 113
8.
CONNECTING THE INSTRUMENT TO THE PC ..................................................... 114
9.
MAINTENANCE ........................................................................................................ 115
9.1.
General information ....................................................................................................... 115
9.2.
Replacement of the batteries ........................................................................................ 115
9.3.
Cleaning the instrument ................................................................................................ 115
9.4.
End of life ...................................................................................................................... 115
10.
TECHNICAL SPECIFICATIONS ............................................................................... 116
10.1.
Technical characteristics ............................................................................................... 116
10.2.
Reference guidelines ..................................................................................................... 121
10.3.
General characteristics .................................................................................................. 122
10.4.
Environment .................................................................................................................. 122
10.4.1.
Environmental conditions for use ......................................................................................... 122
10.5.
Accessories ................................................................................................................... 122
11.
SERVICE .................................................................................................................. 123
11.1.
Warranty conditions ....................................................................................................... 123
11.2.
Service .......................................................................................................................... 123
12.
THEORETICAL APPENDIXES ................................................................................. 124
12.1.
Continuity of protective conductors ............................................................................... 124
12.2.
Insulation resistance...................................................................................................... 125
12.2.1.
Measurement of polarization index (PI) ............................................................................... 126
12.2.2.
Dielectric Absorption Ratio (DAR) ....................................................................................... 126
12.3.
Checking circuit separation ........................................................................................... 127
12.4.
Test on differential switches (RCD) ............................................................................... 129
12.5.
VerifICATION of the breaking capacity of protection devices ....................................... 130
12.6.
Verify of protection against indirect contacts in TN systems ......................................... 131
12.7.
Ra test in TN systems ................................................................................................. 133
12.8.
Verify of protection against indirect contacts in TT systems ......................................... 134
12.9.
Verify of protection against indirect contacts in IT systems ........................................... 135
12.10.
Verify of protection coordination L-L, L-N and L-PE ...................................................... 136
12.11.
Verifiy of voltage drop on MAINS .................................................................................. 138
12.12.
Voltage and current Harmonics ..................................................................................... 139
12.12.1.
Presence of harmonics: causes ........................................................................................... 140
12.12.2.
Presence of harmonics: consequences ............................................................................... 141
12.13.
Calculation of powers and power factors ...................................................................... 142