Siemens Aktiengesellschaft

Herbert Foissner

Peer Thilo

Uwe Metzner

Herbert Krautwald

Peter Kupec

Lutz Minke

An electrode arrangement for capacitive guard fences wherein the conductor is horizontally stretched substantially parallel to the ground has a shape for preventing formation of water droplets which may collect as a result of precipitation from generating a false alarm and which also deters small animals from perching on the electrode. In one embodiment the electrode has a rectangular cross-section with the longest sides of the electrode being disposed substantially vertically. In another embodiment the electrode consists of two conductors having circular cross-sections which may be disposed parallel to one another or twisted. A further electrode embodiment has at least three conductors having very small circular cross-sections disposed at equal intervals from one another around a circular circumference. Means for facilitating water droplet runoff are provided at equal intervals which simultaneously serve as spacers for the conductors. Another electrode embodiment has a single line wire in the shape of a stretched helical spring.

Electrode arrangement for capacitive guard fences

An insulator arrangement which may be employed, for example, on a capacitive protective fence comprises three principal elements:

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Wolfratshausen, Germany

Herbert Foissner