Method for locating conductive faults in telephone and similar c

Details Method for locating conductive faults in telephone and similar c Method for locating conductive faults in telephone and similar c

1989-05-19

1990-05-29

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

For fault location

324527, 324541, G01R 3108

Patent

active

049299000

ABSTRACT:
The resistance of a cable conductor between a measuring point and a conductive fault is measured using an electronically regulated current source and a very high resistance voltmeter in such a way as to eliminate contact and fault resistance as a source of error. Distance to the fault is determined by calculation from the known resistance per unit length.

REFERENCES:
patent: 1084910 (1914-01-01), Stephenson
patent: 2615076 (1952-10-01), Miller
patent: 3248646 (1966-04-01), Brazee
patent: 3284704 (1966-11-01), Lamont
patent: 4446421 (1984-05-01), Berde
patent: 4751724 (1988-06-01), Amadio et al.

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