1.
    发明专利
    未知

    公开(公告)号:FR2600465B1

    公开(公告)日:1993-09-03

    申请号:FR8608786

    申请日:1986-06-18

    Abstract: The surge protection element comprises an inert gas-filled protective device with electrodes inserted between two line input terminals, these terminals being connected respectively to branch terminals of an installation to be protected. The surge protection element also comprises initial protection apparatus, intended to be inserted between the terminals of the installation to be protected, and having a response time and a voltage threshold below that of said protective device, and also decoupling apparatus connected in series between the terminals of the protective device and those of the initial protection apparatus. The decoupling apparatus are capable of causing the voltage to rise at the terminals of the protective device when the current strength passing through the initial protection means increases, whereby the protective device can be tripped and can take over from the initial protection apparatus.

    2.
    发明专利
    未知

    公开(公告)号:FR2600465A1

    公开(公告)日:1987-12-24

    申请号:FR8608786

    申请日:1986-06-18

    Abstract: The surge protection element comprises an inert gas-filled protective device with electrodes inserted between two line input terminals, these terminals being connected respectively to branch terminals of an installation to be protected. The surge protection element also comprises initial protection apparatus, intended to be inserted between the terminals of the installation to be protected, and having a response time and a voltage threshold below that of said protective device, and also decoupling apparatus connected in series between the terminals of the protective device and those of the initial protection apparatus. The decoupling apparatus are capable of causing the voltage to rise at the terminals of the protective device when the current strength passing through the initial protection means increases, whereby the protective device can be tripped and can take over from the initial protection apparatus.

    3.
    发明专利
    未知

    公开(公告)号:FR2636167B1

    公开(公告)日:1990-11-16

    申请号:FR8811728

    申请日:1988-09-08

    Inventor: CANTAGREL MICHEL

    Abstract: The device relates to a gas lightning arrester comprising a tight enclosure and at least two electrodes (2a, 2b). In the enclosure is placed a powdery mineral addition agent. This addition agent is a mixture of elementary or mixed metal oxides globally corresponding to the general formula Al Xa Yb Oc, in which formula X and Y respectively represent at least one alkaline or alkaline-earth metal, a is between 0.02 and 1.5, b is between 0 and 0.25 and c has the necessary value to comply with the valency rules. Can be used for the protection of the telephone lines.

    4.
    发明专利
    未知

    公开(公告)号:FR2636167A1

    公开(公告)日:1990-03-09

    申请号:FR8811728

    申请日:1988-09-08

    Inventor: CANTAGREL MICHEL

    Abstract: The device relates to a gas lightning arrester comprising a tight enclosure and at least two electrodes (2a, 2b). In the enclosure is placed a powdery mineral addition agent. This addition agent is a mixture of elementary or mixed metal oxides globally corresponding to the general formula Al Xa Yb Oc, in which formula X and Y respectively represent at least one alkaline or alkaline-earth metal, a is between 0.02 and 1.5, b is between 0 and 0.25 and c has the necessary value to comply with the valency rules. Can be used for the protection of the telephone lines.

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