Abstract: A device for protection against voltage surges, comprising: a first spark gap (E1); a first pre-triggering system (2), electrically connected to the first spark gap (E1), so as to enable its being primed; a control device (4) electrically connected to the first pre-triggering system (2) so as to activate same. The invention is characterized in that it comprises at least a second spark gap (E2) mounted parallel to the first spark gap (E1), and electrically connected to a second pre-triggering system (3), such that the control device simultaneously activates the first and the second pre-triggering systems (2, 3), so as to trigger simultaneously the first and second spark gaps (E1, E2). The invention also concerns devices against voltage surges.

Abstract: The invention relates to a surge protector device of the spark gap lightning arrestor kind, the device comprising: a first spark gap (E1); a first pre-trigger system (2) electrically connected to the first spark gap (E1) in such a manner as to enable an arc to be struck therein; and a control device (4) electrically connected to the first pre-trigger system (2) in such a manner as to activate it; the protector device being characterized in that it includes at least one second spark gap (E2) connected in parallel with the first spark gap (E1), and electrically connected to a second pre-trigger system (3) connected in parallel with the first pre-trigger system (2), in such a manner that the control device (4) activates the first and second pre-trigger systems (2, 3) simultaneously so as to trigger the first and second spark gaps (E1, E2) simultaneously. Devices for providing protection against surges.

Abstract: A device for protecting an electrical installation (2) against overvoltages, the device having a main spark-gap (E1) and a pre-triggering circuit (10) connected to the main spark-gap (E1) to control the firing of the main spark-gap in the event of any overvoltage. The pre-triggering circuit (10) has at least one voltage-interrupting element (G) which, in the off state, prevents current from passing through the pre-triggering circuit (10), so that, in the absence of an overvoltage, the leakage current consumed by the pre-triggering circuit (10) is essentially zero.