发明名称 Safety casing esp for danger alarm centre
摘要 The case (1) includes one or several peripheral control points with an opening and lockable cover (3). The alarm message center (2) comprises at least one sabotage protection circuit (4) with at least one protection conductor (5, 6) and/or a sabotage protection switch (7). The circuit (8) of the sabotage protection switch is closed in the closed condition of the cover and opened in the opened condition of the cover. At least the endangered casing surface areas (9, 10, 11, 13, 14) next to the entire cover, are equipped with at least one electric conductor path (15), connected in series with the sabotage protection switch and/or the protection conductor of the alarm message center. The electric conductor path opens the circuit of the sabotage protection switch or the sabotage protection circuit, when it is separated, whereby a sabotage alarm is triggered.
申请公布号 DE19635664(A1) 申请公布日期 1998.03.05
申请号 DE19961035664 申请日期 1996.09.03
申请人 FRIEDRICHS, WERNER, 42655 SOLINGEN, DE 发明人 FRIEDRICHS, WERNER, 42655 SOLINGEN, DE
分类号 G08B29/10;H05K5/02;(IPC1-7):G08B29/00;H05K1/02 主分类号 G08B29/10
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