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(1)基本情况专利名称:用于监控火灾报警装置的信号线干扰的方法和设备;专利申请号:CN200710102905.X;公开号:CN101071521;申请日:2007年5月11日;公开日:2007年11月14日;申请人:德国西门子建筑技术防火与安全产品有限责任两合公司。(2)专利描述在运行中以线电流(IL)加载火灾报警
(1) The basic situation Patent name: Method and apparatus for monitoring signal line interference of fire alarm device; Patent application number: CN200710102905.X; Publication number: CN101071521; Application date: May 11, 2007; Publication date: 2007 November 14, 2008; Applicant: Germany’s Siemens Building Technologies fire and safety products limited liability company. (2) Patent Description A fire alarm is loaded with line current (IL) during operation