开关朝上是开还是关有规定
问题
开关朝上是开还是关有规定
电闸向上是开,向下是关,这是电闸开关的规律,因为向上电闸必须要有才能实行,所以电闸开的时侯必须要有向上扳动才能合闸,但关闸时只要向下扳就可以了,而向下扳后电闸是不会自行合闸的。往上是开,往下是关。因为上开下关,这种设计方法比较科学的,比如说开关脱扣,或者是出现老化掉来下时,也只是会断开电源,不会带来别危,相反的,若是设计成上关下开的话,就容易造成事故。
dian zha xiang shang shi kai , xiang xia shi guan , zhe shi dian zha kai guan de gui lv , yin wei xiang shang dian zha bi xu yao you ren cai neng shi xing , suo yi dian zha kai de shi hou bi xu yao you ren xiang shang ban dong cai neng he zha , dan guan zha shi zhi yao xiang xia ban jiu ke yi le , er xiang xia ban hou dian zha shi bu hui zi xing he zha de 。按照习惯是向上开,向下关闭,但是没有强要求,如果是空气开关那就一定是向上开,向下关,这个就有规定了0条评论5赞同浮晓生关注断路器、刀闸等开关,具有统一规定,一律是按钮向上扳,就是开,向下扳,就是关。
wang shang shi kai , wang xia shi guan 。yin wei shang kai xia guan , zhe zhong she ji fang fa bi jiao ke xue de , bi ru shuo kai guan tuo kou , huo zhe shi chu xian lao hua diao lai xia shi , ye zhi shi hui duan kai dian yuan , bu hui dai lai bie wei hai , xiang fan de , ruo shi she ji cheng shang guan xia kai de hua , jiu rong yi zao cheng shi gu 。大部分开关都是上开下关,跟电闸的使用标准是一样的。但具体还要看开关是单控还是双控,如果是单空,则上开下关;而双控是由多个开关来控一个灯,因此要看开关是接在哪个输出端来决定。
dian zha wang shang shi kai , wang xia shi guan 。shang kai xia guan , zhe yang de she ji shi bi jiao ke xue de , pi ru shuo kai guan tuo kou , huo zhe lao hua diao xia lai de qing kuang xia , ye zhi shi duan kai dian yuan , bu hui zao cheng qi ta de wei hai , fan zhi , ru guo shi shang guan xia kai de hua , rong yi zao cheng shi gu 。dian zha kai guan xiang shang shi kai hai shi guan dian zha kai " da bu fen kai guan dou shi shang kai xia guan , gen dian zha de shi yong biao zhun shi yi yang de 。dan ju ti hai yao kan kai guan shi dan kong hai shi shuang kong , ru guo shi dan kong , ze shang kai xia guan ; er shuang kong shi you duo ge kai guan lai kong zhi yi ge deng , yin ci yao kan kai guan shi jie zai na ge shu chu duan lai jue ding 。
yi ban jia yong dian deng kai guan shi xiang xia an shi guan deng 。duan lu qi 、dao zha deng kai guan ,ju you tong yi gui ding ,yi lv shi an niu xiang shang ban ,jiu shi kai ,xiang xia ban ,jiu shi guan 。zhe yang zuo shi wei le fang zhi an niu nei bu dan huang sun huai " an zhao xi guan shi xiang shang kai , xiang xia guan bi , dan shi mei you qiang zhi yao qiu , ru guo shi kong qi kai guan na jiu yi ding shi xiang shang kai , xiang xia guan , zhe ge jiu you gui ding le 0tiao ping lun 5 zan tong fu xiao ren sheng guan zhu duan lu qi 、dao zha deng kai guan , ju you tong yi gui ding , yi lv shi an niu xiang shang ban , jiu shi kai , xiang xia ban , jiu shi guan 。
一般家用电灯开关是向下按是关灯。断路器、刀闸等开关,具有统一规定,一律是按钮向上扳,就是开,向下扳,就是关。这样做是为了防止按钮内部弹簧损坏电闸往上是开,往下是关。上开下关,这样的设计是比较科学的,譬如说开关脱扣,或者老化掉下来的情况下,也只是断开电源,不会造成其他的危,反之,如果是上关下开的话,容易造成事故。电闸开关向上是开还是关电闸开
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