![Hioki 3155-01 Instruction Manual Download Page 338](http://html1.mh-extra.com/html/hioki/3155-01/3155-01_instruction-manual_2137164338.webp)
318
────────────────────────────────────────────────────
Appendix 2 Leakage Current Measurement
────────────────────────────────────────────────────
2.1.2 Enclosure Leakage Current
NOTE
Faulty equipment
Signal input or
output part
Changeover box
Insulating
transformer
Leakage current
Human body
Equipment to
be measured
3155
1. Between the enclosure and the earth
2. Between parts of the enclosure
Faulty equipment
Signal input or
output part
Insulating
transformer
Changeover box
Human body
Leakage
current
Equipment to
be measured
3155
Enclosure leakage current concept diagram
3-P outlet
9196 110% voltage applied
Changeover box
Insulating
transformer
3155
Leakage
current
T2
T1
G
Red 9170
TEST LEAD
Measurement network
Equipment to
be measured
3-P outlet
9196 110% voltage applied
Changeover box
3155
Insulating
transformer
Leakage
current
Measurement network
Black 9170
TEST LEAD
Equipment to
be measured
Red 9170
TEST LEAD
1. Between the enclosure and the earth
2. Between parts of the enclosure
Enclosure leakage current wiring diagram
The term ’enclosure leakage current’ refers to leakage current that flows from
the enclosure of the equipment to be measured, through the body of a person
touching the equipment, and into the earth.
The following points are measured.
1. Between the enclosure and the earth (With class
equipment, between each
part of the enclosure which is not protectively earthed and the earth)
Using a single 9170 TEST LEAD, connect the measurement network between
the enclosure of the equipment to be measured and the earth, and measure
the current.
2. Between parts of the enclosure (With class
equipment, between parts of the
enclosure which is not protectively earthed)
Using two 9170 TEST LEADS, connect the measurement network between
parts of the enclosure of the equipment to be measured, and measure the
current. When applying the 110% maximum rated voltage, use the 9196
APPLY UNIT etc. to set the single fault condition.
For measurements of medical electrical equipment, an additional
measurement is made in a single fault condition with the application of 110%
of the maximum rated voltage between the signal input or output part which
is not protectively earthed and the earth.
Summary of Contents for 3155-01
Page 1: ...LEAK CURRENT HiTESTER INSTRUCTION MANUAL 3155 01...
Page 2: ......
Page 12: ......
Page 27: ...7 1 2 3 4 5 6 7 8 9 10 11 12 13 14 A Chapter 2 Names and Functions of Parts...
Page 45: ...25 1 2 3 4 5 6 7 8 9 10 11 12 13 14 A Chapter 4 Preparations for Measurement...
Page 243: ...223 7 7 System Screen Universal Example of a data unit printout Example of a details printout...
Page 314: ...294...
Page 322: ...302 9 3 Accuracy Tables...
Page 334: ...314 10 6 External Dimensions 292 2 110 2 212 2 115 8 2 10 6 External Dimensions...
Page 335: ...315 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 APP Appendices...
Page 362: ...INDEX 6 Index...
Page 363: ......
Page 364: ......
Page 365: ......