Mike Krzyzewski is really a famous coach of Dream Team. She has coached north america men's basketball team for some time, that's clinched numerous medals for his country. Following Londonfl jerseys supplyn Olympic was over, Krzyzewski told The Associated Press that this game will be his final one as national coach, a job he's held for seven years. He had left open the possibility of swomen nfl jerseystaying with the team beyond the London Games, when practice on Saturday said these will be his last Olympics.When asked if he was sure, Krzyzewski didn't hesitate before again saying, "yecheap nfl jerseys wholesales," this will be his last game "If we could win it, then it might be three major championships in a row, i always do not know when that has been done because we haven't usually won http://govoriotkrito.bg/libs/nflcn08.htmthe globe championships," Krzyzewski said. "It becomes an enormous thing for the program." Whatever, he's an awesome coach. His achievement are going to be remembered by the country.cheap nfl jerseys
<td id="gu7nx"><input id="gu7nx"></input></td>
<form id="gu7nx"><optgroup id="gu7nx"></optgroup></form>

    1. <style id="gu7nx"><kbd id="gu7nx"></kbd></style>

    斷路器型號(hào)及其參數(shù)上海人民電氣有限公司概述

    2021/1/19 14:33:15      點(diǎn)擊:

    1、低壓斷路器型號(hào)。DW10系列框架式自動(dòng)開關(guān);DWX15、DWX15C系列萬(wàn)能式限流斷路器;DW17(ME)系列萬(wàn)能式斷路器;DZ10系列塑料外殼式自動(dòng)開關(guān);DZ15系列塑料外殼式斷路器;DZX10系列塑料外殼式限流斷路器;DZ20系列塑料外殼式斷路器;DZ25系列塑料外殼式斷路器;

    2、高壓斷路器型號(hào)。DW系列高壓戶外安裝多油斷路器;SW系列高壓戶外安裝少油斷路器;SN系列高壓戶內(nèi)安裝少油斷路器;ZW系列高壓戶外安裝真空斷路器;ZN系列高壓戶內(nèi)安裝真空斷路器;LW系列高壓戶外安裝SF6斷路器;

    3、其實(shí),我們平時(shí)說(shuō)的多少安,指的是斷路器的額定電流。額定電流是何意呢?就是指電路中的電流,一旦超過(guò)額定電流的數(shù)值,斷路器就會(huì)跳閘。這個(gè)額定電流,就是參數(shù)中C后面的數(shù)字。

    4、比如C32,就是指超過(guò)32A斷路器就會(huì)跳閘;C20,就是指超過(guò)20A斷路器就會(huì)跳閘。

    5、那C前面那個(gè)數(shù)字呢,指的是斷路器的框架電流。

    6、框架電流指的是,該斷路器能夠承受的最大電流,即如果電路中的電流超過(guò)該數(shù)值了,斷路器就有可能被燒毀。比如DZ47-60C32,指的是斷路器的框架電流為60A——在電路中的電流為32A時(shí),斷路器會(huì)跳閘。但是如果電路中的電流超過(guò)了60A,斷路器就有燒毀的危險(xiǎn)。

    7、斷路器燒毀,可能會(huì)造成不能自動(dòng)脫扣。因此,框架電流和額定電流相同的斷路器,使用起來(lái)是有風(fēng)險(xiǎn)的。

    8、在選擇斷路器電流時(shí),一定要結(jié)合實(shí)際情況,如插座額定功率、插座數(shù)量等。不可盲目追求大電流,以免發(fā)生電路過(guò)載后,斷路器不跳閘的情況。

    9、極數(shù)是斷路器選擇的另一個(gè)大指標(biāo),1極又叫做1P。

    10、家庭單相電路使用的斷路器有1P、1P+N,2P三種。其中,1P斷路器是指,只可以斷開火線,而且時(shí)刻監(jiān)測(cè)火線上的電流,一旦火線上的電流達(dá)到額定電流,斷路器可以為火線提供保護(hù)——跳閘。

    11、1P+N斷路器是指,可以斷開火線和零線,但是電流檢測(cè)還是只能檢測(cè)火線,為火線提供保護(hù)。

    12、2P斷路器,可以斷開火線和零線,而且同時(shí)檢測(cè)火線和零線上的電流。

    13、一般電燈回路,可以選擇1P或1P+N斷路器。插座回路必須帶有漏電保護(hù)附件,一般五孔插座選擇1P或1P+N的漏電斷路器;三孔插座必須選擇2P漏電斷路器。

    亚洲色欲大片AAA无码,欧美精品一区三区在线观看,久久精品人人做人人爽不卡,国产日韩伦精无码一区二区
    <td id="gu7nx"><input id="gu7nx"></input></td>
    <form id="gu7nx"><optgroup id="gu7nx"></optgroup></form>

    1. <style id="gu7nx"><kbd id="gu7nx"></kbd></style>