如何更换开关.docx

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1、10步更换墙壁开关本文内容如下：1．10步更换墙壁开关2．切断电源3．移走开关面罩4.检查旧开关5．准备好新开关6．旋出螺丝7．卸下老的接点螺丝8．插入导线9．更换开关10．把开关安回原位11．盖好面盖。HowtoReplaceaWallSwitchin10StepsInsidethisArticleHowtoReplaceaWallSwitchin10Steps1.CutPower2.RemoveTheSwitchPlateCover3.InspecttheOldSwitch4.PreptheNewSwitch5.RemoveSc

2、rews6.LoosenOldTerminalScrews7.InsertWires8.ReplacetheSwitch9.PuttheSwitchBackinPlace10.AttachCoverPlateSometimesalightfixturethat'sinperfectoperatingconditiondoesn'tworkbecausethewallswitchtothereceptacleisfaulty.Thereareseveralprimarysymptomsofswitchfailure:·theswitc

3、hlosesitssnaporthereisnocleardistinctionbetweentheON/OFFpositions开关弹簧松弛或者开合没有明显区别·flippingtheswitchnolongerturnsthelightonoroff翻转开关不再关灯或开灯。·flippingtheswitchmakesthelightflicker,butthelightwillnotstayonoroff翻转开关电灯闪烁，但是电灯不会常亮或者常暗。·theswitchmayworkoccasionally,butyouhave

4、tojiggleitbackandforthseveraltimestokeepthelighton开关或许有时候会起作用，你来回轻摇开关几次之后使电灯保持常亮。Ifyouspotanyofthesesymptomsofswitchfailure,installareplacementwallswitchassoonaspossible.Here'show:如果你遇到以上任何开关失效的症状，尽速更换之开关，如下：1.CutPower1.切断开关控制电路Deenergizeelectricalcircuitthatcontrolssw

5、itch.1.RemoveTheSwitchPlateCover卸掉开关面罩，如果面罩不易卸掉，可能是几层油漆粘住了。用剃须刀片或美工刀沿着面盖边缘剃掉油漆以使其松脱。Removeswitchcoverplate.Ifcoverplatedoesn'tcomeoffeasily,itisprobablybeingheldinplacebyseverallayersofpaint.Userazorbladeorutilityknifetocutpaintcloselyaroundedgeofplatetofreeit.2.Inspec

6、ttheOldSwitch检查旧的开关，检查旧开关以确定你需要的开关型式。你必须Inspectoldswitchtodeterminetypeofreplacementmodelyouneed.(Replacecoveruntilyoureturnwithnewswitch.)Youmustusethesametype,but,inmostcases,youcaninstallabettergradeofswitchthantheoneyouhadbefore.4.PreptheNewSwitchPreparenewswitchfo

7、rinstallation.Somekindsofwallswitcheshavenoterminalscrewsforconductorattachments.Instead,switchhassmallholesthatareonlyslightlylargerthanbarecopperconductors.Removeabout1/2inchofinsulationfromendsofwires,thenpushbareendsintoholes.Lockingtabsmakeelectricalconnectionandg

8、ripwiressotheycan'tpullout.Ifnecessary,releasewiresfromoldswitchbyinsertingnarrow-bladescrewdriverinslotsnexttowire-g