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Chapter 5
Maintenance
Confidential
Copying Prohibited
5-57
5.9.5.6
Checking the protective earth resistance
(1) Measurement wiring diagram
・
Without power supply cable
・
With power supply cable
(2) Protective earth resistance measurement points
Measurement Conditions
Without power supply cord
With power supply cord
Measurement point A
Protective earth terminal
Protective earth terminal for
power supply cable
Measurement point B
Potential equalization
terminal
Potential equalization
terminal
(3) Protective earth resistance measurement conditions
Measure the resistance between the potential equalization terminal (and/or other
accessible conductive parts) and the protective earth terminal, or the protective earth
terminal (ground plug) while the AC power supply cord is connected.
(4) Acceptance standards
Between protective earth terminal and potential
equalization terminal
0.1
Ω
or less
Between power supply cord protective earth
terminal and potential equalization terminal
0.2
Ω
or less
VS-1500
VS-1500
Summary of Contents for VaSera VS-1500
Page 12: ...Confidential Copying Prohibited x ...
Page 18: ...0 Chapter 1 Features 1 6 Confidential Copying Prohibited ...
Page 32: ...Chapter 4 Names of Parts of Equipment 4 6 Confidential Copying Prohibited ...
Page 42: ...Chapter 5 Maintenance 5 10 Confidential Copying Prohibited Diagonal Line Stripe ...
Page 178: ...Chapter 10 Part Location Diagram and Checkpoints Confidential Copying Prohibited 10 3 ...
Page 180: ...Chapter 10 Part Location Diagram and Checkpoints Confidential Copying Prohibited 10 5 ...
Page 191: ...Chapter 10 Part Location Diagram and Checkpoints 10 16 Confidential Copying Prohibited ...
Page 207: ...Chapter 11 Spare Parts List 11 16 Confidential Copying Prohibited ...