Fault test apparatus for conductors of multiconductor cable

Details Fault test apparatus for conductors of multiconductor cable Fault test apparatus for conductors of multiconductor cable

1985-01-04

1987-03-17

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

340661, G01R 3102

Patent

active

046510842

ABSTRACT:
Two parallel chains of resistances of like value are coupled between a pair of terminals to which a test voltage is applied. One chain is formed by connecting each cable conductor between a different pair of resistances in alternating serial fashion. A plurality of comparators each compare the potentials at nodes between pairs of corresponding resistances in each chain. The outputs of the comparators are coupled to a NAND gate for giving a fault indication when the output of one or more comparators changes state in response to one or more sensed faults.

REFERENCES:
patent: 3528104 (1970-09-01), Ehlschlager
patent: 3728616 (1973-04-01), Cheek et al.
patent: 3986106 (1976-10-01), Shuck et al.
patent: 4227146 (1980-10-01), Hodge
patent: 4518953 (1985-05-01), Hunter et al.

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