电工高手请进----空调的地线怎样接?

2025-03-01 06:33:29
推荐回答(1个)
回答1:

告诉你几点我,希望对你有所帮助. 1 . 你的那个房屋可能是95年前建造的或者在乡镇一级的地方,也许确实没有接接地装置。要试验是否有接接地装置,可以用万用表的电阻档、一棒接电表箱的外壳、一棒接附近的自来水管,或者接在比较潮湿的地上临时插一根地线、万用表显示的电阻为零或者在4欧姆以下,能够达到4欧姆以下,说明电表箱是被接了接地装置的,你可以放心到电表箱引出接地线的。根据安全用电规定,用电压测量是严格禁止的。也就是〈测试方法:用万用表的电压档、一棒接火线、一棒接地线、显示220v…地线就算是安全地线了〉这句话是错误的。 2 . 根据安全用电规定,接地线是不设开关的。是否有接接地装置连接在你的电表〈控制〉箱,你还可以观察你的电表〈控制〉箱内有没有接地线桩。它是被直接焊接在电表〈控制〉箱内侧的。如果供电部门为它做了接地保护,那么接地线桩上是应该有从外面引进的电线或者扁铁在上面固定着的。而用户的接地线统一从这接地线桩上引出,接地线一般要求是黄绿双色的,〈也有用黑色的〉。如果没有,说明箱内有没有接地线的可能性比较大。 3 . 如果箱内没有确实接地线,我个人并不建议你自己独立安装接地线。建议你在开关箱内安装一只漏电保护开关!!这样安全,方便,节约,可谓一举三得了。有了漏电保护开关,不管是哪个电器出现漏电,都会立即自动跳闸对人身进行保护了。普通的漏电保护开关只要40元钱就可以了。 4. 如果你仅仅只想为空调单独安装接地线,可以在房屋边比较潮湿的地面打入一根2.5米长的角钢或者自来水管,并在上面钻孔,用螺栓将一根2.5平方以上的铜芯线的一头固定在上面,另外一头固定连接到空调的外壳或者空调电源插座的接地极上。注意,地面螺栓的那一头应该经常检查,看看接触十分良好。这是只为空调单独安装接地线的办法,尽量不要再连接其他电器的接地线。否则后果自己负责呵。 5. 如果确认供电部门没有做接地保护,而你又希望所有的电器都有接地保护。自己安装接地装置相对要求要严格了。因为在一条接地线上连接的多个电器,在接地装置有问题或者接触不好的情况下,只要一个电器出现漏电其他的电器外壳都会带电,这样触电的危险性更加大了。因此,你的那个接地装置或者干脆不做,做了就必须是绝对安全可靠的!! 普通接地装置再基本的要求 ,3*30的热镀锌角钢2.5米长<干旱地区3米以上>3根, 间隔3米,先分别在地面挖坑深入30公分,然后打桩入地。再用3*30的热镀锌扁钢用电焊把它们连接起来,焊接时要求要搭接。搭接尺度在15公分以上。热镀锌扁钢挖沟30公分以上进行埋设。扁钢的一头引到房屋墙上离地40公分以上,并在上面钻一个8mm以上的孔。用螺栓将一根10平方以上的铜芯线的一头固定在上面,另外一头固定连接到电表〈控制〉箱内的接地线桩。测验,用万用表的电阻档、一棒接接地线桩、一棒接附近的自来水管,或者接在比较潮湿的地上临时插一根地线,电阻为零或者在4欧姆以下,能够达到4欧姆以下,说明接地装置是合格的,你可以放心从上面引出接地线了。

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