防爆控制箱应达到什么样的制造标准
发布日期:2021-08-19 14:48:59
4.当防爆控制箱二次防爆配电箱的开关电源断路器断开时,应有一个明显的断点;因此,B级箱可不设漏电隔离开关,C级带尾载配电箱应设漏电、总配电箱、总漏风开关、总隔离器、断路器、漏电电源开关。

防爆控制箱应整体密封,进风口和通风口设计有效、专业,并进行合理的自然通风;柜体顶部应设置安全网和安全盖通风口,壳体底部还应设有木地板和送风口;防爆控制箱顶部应装有离心风机,安装时使用的螺丝应为止回弹性件,避免离心风机掉落;在离心风机和外壳之间加塑料或硫化橡胶减震垫片,这样做的目的是为了更好地降低离心风机振动带来的噪音;

防爆控制箱的所有连接区域都应选择密封垫或密封胶,这样做的目的是为了更好地保护安全,降低烟雾进入的概率;防爆控制箱运行时标准平均高度不得超过2000米,周围气体高温度不得超过+40℃,低温度不得低于-20℃。

防爆配电箱的标准规定:

1.说白了,二级防爆配电箱是B级箱,B级箱的作用是为C级配电箱分配开关电源;

2.二次防爆配电箱内的电气元件多为塑壳断路器,有一个主隔离开关(与A类箱连接)。隔离开关的数量取决于负载条件;

3.根据JGJ-462005,a级配电箱应配备开关电源断路器和短路故障、负载和漏电维修家用电器;

4.当防爆控制箱二次防爆配电箱的开关电源断路器断开时,应有一个明显的断点;

5.一般现场进行三级配电和二级漏电维护。因此,B级箱可不设漏电隔离开关,C级带尾载配电箱应设漏电、总配电箱、总漏风开关、总隔离器、断路器、漏电电源开关。

6、二级、配电箱内,设置总漏风开关,分离刀闸,分离漏风开关(二级施工现场临时用电标准未规定安装漏电电源开关);

7.防爆控制箱第三层,配电箱,是安装在大功率电器3米范围内的开关电源箱,内部安装刀闸和漏电电源开关,每台机器设备一个配电箱,严禁使用同一箱;

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