Surge suppression for low voltage signal circuits

Details Surge suppression for low voltage signal circuits Surge suppression for low voltage signal circuits

1988-01-19

1990-02-20

Jennings, Derek S.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Load shunting by fault responsive means

361 91, 361111, 361103, 361120, H02H 320

Patent

active

049031619

ABSTRACT:
A voltage surge suppression circuit for a low voltage coaxial cable comprises a gas tube connected across the signal and shield conductors and an MOV connecting the shield conductor to a ground. In the case of a balance signal line comprising two conductors, a first gas tube connects one line to ground and a second gas tube is connected across both conductors. A third gas tube may connect the other conductor to ground in which case the second gas tube may be optional. The ground is preferably a ground associated with a power line voltage surge suppression means.

REFERENCES:
patent: 4089032 (1978-05-01), Dell Orfano
patent: 4345290 (1982-08-01), Johnson
patent: 4438477 (1984-03-01), Cawley
patent: 4554608 (1985-11-01), Block
patent: 4587588 (1986-05-01), Goldstein
patent: 4633359 (1986-12-01), Mickelson et al.
patent: 4649457 (1987-03-01), Talbot et al.
patent: 4661878 (1987-04-01), Brown
patent: 4723190 (1988-02-01), Chang
patent: 4729055 (1988-03-01), Dorival et al.
patent: 4739436 (1988-04-01), Stefani et al.
patent: 4758920 (1988-07-01), McCartney

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