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METHOD FOR THE PROTECTION IN PARTICULAR OF TELECOMMUNICATION INSTALLATIONS AND PROTECTION CIRCUIT FOR CARRYING OUT SAID METHOD
METHOD FOR THE PROTECTION IN PARTICULAR OF TELECOMMUNICATION INSTALLATIONS AND PROTECTION CIRCUIT FOR CARRYING OUT SAID METHOD
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机译:尤其是在电信设施中的保护方法和实施该保护方法的保护电路
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摘要
Overcurrents caused by overvoltages on parallel current paths (a-a',b-b') are diverted by a common earth line (E). The paths are interconnected on the network side (L) by a transverse path (c-d) through an overvoltage diverter (1) triggered by a voltage above the peak value of a power supply voltage. Thyristor diodes (4,5) connecting the respective current paths to the earth line are fired by voltages slightly exceeding the max. operational voltages of the line. PTC resistors (2,3) decouple the thyristor diodes from the divertor and block the max. amplitudes of the supply voltage. IMAGE
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