塑料外壳式断路器

1.概述


        XYM1系列塑料外壳式断路器（以下简称断路器），是本公司采用国际先进设计、制造技术研制、开发的新型断路器之一。其额定绝缘电压为800V，适用于交流50Hz/60Hz，额定工作电压690V及以下，（XYM1-63为400V），额定电流至800A的电路中作不频繁转换及电动机保护（XYM1-800无电动机保护型）之用。断路器具有过载、短路和欠电压保护功能，能保护线路和电源设备不受损坏。
        断路器按照其额定极限短路分断能力（Icu）的高低、分为C型（基本型）、L型（标准型）、M型（较高分断型）、H型（高分断型）四类。该断路器具有体积小、分断高、飞弧短（部分规格零飞弧）、抗振动等特点，并通过了核工业条件（1E级）试验和船舶条件的试验，成为国产产品中唯一能用于核工业基地的产品，更是陆地及船舶使用的理想产品。
        本断路器可垂直安装（即竖装），亦可水平安装（即横装）。
        本断路器具有隔离功能，其相应的符号为： 。
        断路器符合IEC60947-2、GB14048.2标准。
        本断路器获国家强制性产品认证“CCC”标志和德国“TUV”（莱茵）公司“CE”认证。




2.正常使用条件


        断路器可在周围空气温度为-5℃～+40℃条件下运行（大于+40℃至+60 ℃降容使用）；
        海拔及2000m以下；
        安装地点的空气相对湿度在最高温度为+40℃时不超过50％，在较低温度下可以有较高的相对湿度，例如20℃时达90％。对由于温度变化偶尔产生的凝露应采取特殊措施；
        污染等级为3级；
        断路器主电路及欠电压脱扣器安装类别为Ⅲ，其余辅助电路、控制电路安装类别为II；
        断路器适用于电磁环境A；
        断路器能耐受潮湿空气、盐雾、油雾、霉菌、核工业环境的影响；
        断路器安装的最大倾斜度为±22.5°；
        断路器在受到船舶正常振动时能可靠工作；
        断路器在受到地震情况下（4g）能可靠工作；
        断路器应安装在无爆炸危险和无导电尘埃、无足以腐蚀金属和破坏绝缘的地方；
        断路器应安装在没有雨雪侵袭的地方。


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