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感温电缆测试方法——沸水加热法

作者:中阳消防2019-01-21阅读量:

1. 取一电水壶装满3/4水后烧开,试验期间保持通电加热,避免壶内水冷却;
2. 根据接线图接好感温电缆、输入模块和电源,拧紧防水接头,盖紧上盖,保证密封;
3. 接通电源,信号处理单元自检,等待稳定运行1分钟后可进行以下报警试验;
4. 取终端盒末端附近的1米以上(正常臂展长度即可)感温电缆,将其弯成100mm左右(约食指拇指一拃)圆圈并捆扎固定;
5. 将上述感温电缆放入电水壶中,盖好水壶盖;
6. 观察信号处理单元,应在60s内报火警(红灯常亮),此时输入模块应上报火警(或者信号处理单元Z2、CK2端子导通);
7. 将报警后的感温电缆取出,等待2分钟至感温电缆冷却至室温,然后方可重新上电(或短接S1复位),感温电缆仍可正常运行;
8. 为了保证感温电缆系统长期稳定运行,建议将每次测试完的感温电缆段剪去重新接线。
感温电缆测试方法

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