KYORITSU 6011A User Manual
Page 2
1．Safe Testing.................................................................................... 1
2．Features.......................................................................................... 3
3．Specification................................................................................... 6
4．Continuity (resistance) tests........................................................... 10
4．
1
Instrument layout................................................................... 10
4．
2
Test procedure....................................................................... 10
5．Insulation Tests............................................................................... 12
5．
1
The nature of insulation resistance........................................ 12
5．
1．
2 Capacitive current.................................................................. 12
5．
1．
3 Conduction current................................................................ 13
5．
1．
4 Surface leakage current........................................................ 13
5．
1．
5 Total leakage current..............................................................14
5．
2
Damage to voltage sensitive equipment................................ 14
5．
3
Preparation for measurement................................................ 15
5．
4
Insulation resistance measurement....................................... 15
6． Loop Impedance Tests.................................................................. 18
6．
1
Voltage measurement............................................................ 18
6．
2
What is earth fault loop impedance?..................................... 18
6．
3
Automatic over temperature cut out...................................... 18
6．
4
The loop impedance test....................................................... 19
6．
5
Loop impedance at 3 phase equipment................................ 20
7．Prospective Short Circuit Current (PSC) tests................................ 21
7．
1
What is Prospective Short Circuit Current?........................... 21
7．
2
Testing Prospective Short Circuit Current............................. 21
8．RCD Tests...................................................................................... 22
8．
1
Purpose of RCD Test............................................................ 22
8．
2
What does the RCD test really do?....................................... 23
8．
3
Uc Test................................................................................. 23
8．
4
Uc Testing............................................................................ 23
8．
5
RCD testing.......................................................................... 23
8．
6
Testing RCD's used to provide supplementary protection.... 24
8．
7
Testing time delayed RCD's.................................................. 25
8．
8
Testing DC sensitive RCD's.................................................. 25
9．The external earth terminal............................................................ 26
10．General........................................................................................... 27
11．Battery replacement....................................................................... 27
12．Fuse replacement........................................................................... 27
13．Servicing......................................................................................... 28
14．Case and Strap assembly............................................................... 29
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