Patent ID: 9257828
Filing Date: 2016-02-09
CPC Classification: H02H,H04M

Claim Text:
1. An electronic appliance powered by a power supply unit connected to a mains type electricity network, and for connection to a transmission line having two conductor elements, and to a terminal in order to transfer data between the line and the terminal ( 9 ), the appliance comprising: a front-end component connected to the line via an isolating transformer; various additional components connected to an electrical ground of the appliance; a discharge component such as a three-pole gas discharger connected to the conductor elements of the line and that becomes conductive in the event of a voltage surge due to the line being struck by lightning, thereby eliminating the surge by establishing a flow of current from the line to electrical ground so as to protect the components situated downstream of this protection, such as the transformer or the front-end component; and a capacitive and/or resistive type divider component interposed between the discharge component and electrical ground in order to co-operate with the power supply unit and/or one or more additional components to constitute a divider bridge, whereby the voltage imposed on the electrical ground of the appliance in the event of lightning is less than the surge to which the conductor elements (