发明名称 |
METHOD AND DEVICE FOR MONITORING DETECTOR LINE OF FIRE DETECTION SYSTEM FOR FAULTS |
摘要 |
A limit indicator technology based detector line of a fire detection system has a line current applied to it during operation and has a final element formed by a TVS diode. At least one of the line current and the line voltage are monitored. Faults of the detector line are detected by a brief increase and a brief reduction in the line current.
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申请公布号 |
US2007268646(A1) |
申请公布日期 |
2007.11.22 |
申请号 |
US20070747672 |
申请日期 |
2007.05.11 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
SCHERMANN HARALD |
分类号 |
H02H9/06 |
主分类号 |
H02H9/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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