A Burke suspension lightning protector for pressures of up to 6600 volts.

Burke Protector

A Burke suspension lightning protector for pressures of up to 6600 volts.

The diagram of "circuit-breaker type" lightning protector.

Circuit-breaker Type

The diagram of "circuit-breaker type" lightning protector.

A Garton-Daniels lightning protector.

Garton-Daniels

A Garton-Daniels lightning protector.

Illustrating the principle of the magnetic blow-out lightning protector.

Lightning Protector

Illustrating the principle of the magnetic blow-out lightning protector.