G PHYSICS
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G01 MEASURING; TESTING
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G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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31/00 Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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G01R31/08 Locating faults in cables, transmission lines, or networks
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G01R31/081 according to type of conductors
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G01R31/086 in power transmission or distribution networks, i.e. with interconnected conductors
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