Electrical safety barriers

Details Electrical safety barriers Electrical safety barriers

1988-09-02

1989-08-22

Jennings, Derek S.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific voltage responsive fault sensor

361 1, 361 11, 361 56, 361 52, 307326, H02H 320

Patent

active

048601519

ABSTRACT:
An electrical safety barrier which is adapted to pass a current returning from a hazardous area to a safe area but which will transmit negligible energy from the safe area to the hazardous area under fault conditions has in its return channel a fuse, shunt diodes and additional diodes. These additional diodes are either conventional rectifier diodes positioned at the safe-area end of the return channel or are Schottky diodes or diodes with a low forward voltage drop positioned at the hazardous-area end of the return channel.

REFERENCES:
patent: 3309542 (1967-03-01), Elliot
patent: 3445679 (1969-05-01), Meyer et al.
patent: 4412265 (1983-10-01), Buuck

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