07KT98
07KT98
电气火灾自动保护型断路器
3.1正确应用防电气火灾的断路器
电气火灾自动保护功能型断路器是在现行普通剩余电流断路器的基础上,配置一个具有与外界温度呈同步单调变化的感温元件——热敏电阻。断路器内部有相应的电子电路相配合,当外界环境温度异常升高,超过了一定正常温度值后(这个温度值范围定义为额定动作温度),电子线路自动驱动电气火灾自动保护型断路器的主触头脱扣器,将断路器负载侧线路分断,防止负载侧的线路和设备发生电气火灾,并造成进一步的短路事故发生。电气火灾自动保护功能型断路器,在规定温度范围的下限以下,不论时间多长,都不会导致电气火灾自动保护功能型断路器动作,即为额定不动作温度。额定不动作温度,保证了电气火灾自动保护型断路器,不致因正常环境温度升高或意外热源的偶然影响而产生误动作,确保其工作的可靠性。
厦门仲鑫达自动化设备有限公司
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