Cable tester for locating shorts discontinuities and reversals i

Details Cable tester for locating shorts discontinuities and reversals i Cable tester for locating shorts discontinuities and reversals i

1978-10-24

1980-10-07

Strecker, Gerard R.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

324 73R, G01R 3102

Patent

active

042271460

ABSTRACT:
Disclosed is a cable tester for multi-conductor cables having a constant current power supply and circuitry for connecting the conductors of the cable in series with one another across the power supply simultaneously. The circuitry includes "open" detector lines, one connected in parallel with each cable conductor, and "short" detector lines, one connected in series with each conductor. The "open" detectors and "short" detectors have light sources in them, the "open" detector lights being normally off and the "short" detector lights being normally on. The "short" and "open" lights are arranged in an easily interpreted display. When only one end of a cable is accessible for testing, means are provided for connecting the cable conductors in selected pairs for testing by the test circuitry.

REFERENCES:
patent: 2912648 (1959-11-01), Wales
patent: 3480856 (1969-11-01), Scott
patent: 3528104 (1970-09-01), Ehlschlager
patent: 3594635 (1971-07-01), Minamii et al.
patent: 3600673 (1971-08-01), Kohke
patent: 3728616 (1973-04-01), Cheek et al.
patent: 3986106 (1976-10-01), Shuck et al.
patent: 4042878 (1977-08-01), Peterson et al.
patent: 4074187 (1978-02-01), Miller et al.

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