| 摘要 |
<p>The invention concerns a device for protection against voltage surges in an electric power supply line. Said device is characterised in that it comprises at least two elements (1', 3), namely a Zener diode lightning arrestor (1') fast-blow in short circuit, and a varistor (3), arranged in parallel, one of the terminals common to said two elements (1', 3) being connected to the line to be protected, and the other common terminal being connected to earth or to a common conductor element.</p> |
