家庭电路连两根火线会不会烧坏
就是家庭的进线是两根火线
有5个网友回答
需要分情况的,如果焊机是采用三相电供电,直接两相,缺相,会烧电机。如果焊机是采用单相电供电,额定电压380V,那么,电机也是单相电机,正常使用就是接两根火线,220V焊机相比,原理相同,只是电压高一点。
直接使用电能工作的器件,各个用电器应并联接入电路,既保证了用电器之间互不影响,又使用电器两端的电压均为220V,在保险丝后。
电灯接入电路时灯座两个接线柱一个接零线、一个接火线,控制电灯的开关一定要安装在灯座与火线的连线上,不允许放在用电器和零线之间,这也是为了安全。螺旋套应该与零线连接。

扩展资料:
火线和零线用导线直接连接,在安装时致使火线和零线直接接通,或用电器内部火线和零线直接接通;电线或用电器的绝缘皮由于老化而破损,致使火线和零线直接接通。发生短路时,电路中的电阻很小,相当于导线的电阻,电路中的电流会很大。
当同时使用的用电器过多,用电器的总功率过大,使电路中的电流过大,超过电路允许通过的电流,致使保险丝熔断或烧坏电能表或造成用电器两端电压低于额定电压而不能正常工作。
参考资料来源:百度百科--家庭电路
连两根火线不会烧坏,因为火线与火线是一个节点,电位相同,或者说它们本来就接通的。
照明电路里的两根电线,一根叫火线,另一根则叫零线。火线和零线的区别在于它们对地的电压不同:火线对地电压为220V;零线的对地的电压等于零(它本身跟大地相连接在一起的)。所以当人的一部分碰上了火线,另一部分站在地上,人的这两个部分之间的电压等于220V,就有触电的危险了。反之人即使用手去抓零线,如果人是站在地上的话,由于零线的对地的电压等于零,所以人的身体各部分之间的电压等于零,人就没有触电的危险。
家庭的进线是两根火线,看想怎么用。
如楼上所说,两根火线如果是相位相同,则电器不工作;如果两相火线相互相差120度相位角,其电压是380V,如果直接用肯定会烧坏电器。但如果在进线和电器之间加个变压器,将其变成220V就没问题,不会烧坏电器,这跟船用电器的线路接法一样。
但需指出一点:对需要整流的电路不适用,因为平常使用的整流电路(如各种充电器等)一般都是按一根火线加一根零线的接线方式设计的,相关滤波和限压电路只适用于该种情况。
你要弄清,是380伏的两根火线入户,如果是380伏两根火线入户一定烧家用电器,因为:电源有(1)相电压和(2)线电压之分,(1)相电压380伏电都是三相四线制,即:三根火线一根零线,其中的三根火线用表测随便哪两根火线都是380伏,所以称之为三项,如果其中两根火线入户那就是380伏入户,你想想能不烧电器吗?(2)线电压就是三项电380伏其中的一根火线对零线就是220伏(三项哪一项对零线都是220伏),我们用的电压就是在三项电传输线路中取出一项和零线,在电工学中叫做 单项电 也就是 220 的电压就是我们日常生活中电器用的电压,我曾经修理过好多电视机,影碟机,冰箱等等....都是380入户烧毁的,一般都发生在春天,电线干上都是裸线春天天气变暖裸线热胀冷缩,电线变长了电业工作人员还没紧线,再加上春风大刮风把电线刮碰线了这样就高压入户,把电器烧了,---------------不知道这个回答你满意吗?
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