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7.3 Enclosure Leakage Current Measurement Mode (Universal)
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7.3.1 Enclosure Leakage Current Measurement Mode
Condition of the equipment to be measured
Power source polarity
Test point
Normal condition
Normal polarity
Between the enclosure and the power line
Between the enclosure and the earth
Reverse polarity
Between the enclosure and the power line
Between the enclosure and the earth
Single fault condition
Open power lead
Normal polarity
Between the enclosure and the power line
Between the enclosure and the earth
Reverse polarity
Between the enclosure and the power line
Between the enclosure and the earth
Open ground
Normal polarity
Between the enclosure and the power line
Between the enclosure and the earth
Reverse polarity
Between the enclosure and the power line
Between the enclosure and the earth
NOTE
7.3 Enclosure Leakage Current Measurement Mode
(Universal)
The enclosure leakage current measurement is performed in two places:
between the enclosure and the earth, and between the enclosure and the
power line.
With class
equipment, the enclosure is each part of the enclosure which is
not protectively earthed.
Plug the power cord of the equipment to be measured into the auxiliary power
socket for the 3155, and make a measurement by touching either the 9170
TEST LEAD or 9195 ENCLOSURE PROBE to the test point.
The following combinations can be measured under the enclosure leakage
current measurement.
・
When making measurements of internally powered equipment, there is no
polarity setting.
・
In the enclosure leakage current measurement mode, the 50
μ
A range is
not used.
・
When testing class 0I or other older models, use (UL1015, AWG #18 or
equivalent) wire to connect the G terminal with the protective earth
terminal of the equipment to be measured.
・
Measurement between enclosure to enclosure is available.
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...
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Page 364: ......
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