Kev siv cov khoom siv hluav taws xob tsis zoo lossis cov khoom siv hluav taws xob tsis zoo nyob rau hauv qhov chaw muaj kev phom sij ua rau cov neeg ua haujlwm thiab cov neeg tuaj saib muaj kev pheej hmoo ntawm hluav taws xob poob siab, tshwj xeeb tshaj yog tias lawv nyob rau hauv qhov chaw ncaj qha.
Cia siab rau RCDs ntxiv kev tiv thaiv kev ua txhaum.Ntau lub keyboards uas twb muaj lawm tau nruab rau ntawm qhov chaw tsim kho hauv UK muaj AC RCDs.
AC RCDs tsis haum rau kev siv nrog cov khoom siv hluav taws xob niaj hnub no thiab cov cuab yeej siv hauv cov chaw tsim kho, tshwj tsis yog kev tiv thaiv raws li cua sov thiab teeb pom kev zoo - saib BS7671 Kev Hloov Kho 2.
Cov kev cai dav dav rau cov txheej txheem no tau muab rau hauv qhov tseem ceeb ntawm cov txheej txheem tsis siv neeg lub hwj chim tawm.Kev hloov kho 2 ntawm qhov kawg ntawm § 531.3.3 hais tias: "AC hom RCD yuav tsum * tsuas yog siv rau kev ua haujlwm hauv kev teeb tsa ruaj khov uas paub txog cov khoom thauj tam sim no uas tsis muaj DC tivthaiv."
Qhov tsim nyog ntawm kev saib xyuas thiab tswj cov cuab yeej txuas nrog lub zog hluav taws xob, tshwj xeeb tshaj yog cov khoom siv plug-in, yog qhov teeb meem loj rau kev noj qab haus huv thiab kev nyab xeeb.Cov kev pheej hmoo cuam tshuam nrog kev sib txuas cov cuab yeej peb-theem rau lub zog hluav taws xob uas twb muaj lawm tiv thaiv los ntawm hom RCD tsis raug yog qhov muaj peev xwm txaus ntshai ntawm txhua qhov chaw hauv UK.Qhov no tau lees paub thiab tso cai nyob rau hauv HD 60364-7-704 2018 Appendix ZB: Ntawm German kev tsim kho thiab rhuav tshem qhov chaw / Txhua 3-theem peb-theem sockets txog 63 A yuav tsum tau tiv thaiv los ntawm hom B RCDS.
Kev teeb tsa ib ntus: Txhua yam khoom siv uas raug kaw thiab txav mus rau qhov chaw tshiab lossis xa mus rau kev kho dua tshiab / kho yuav ua raws li cov kev xav tau kev nyab xeeb tshiab, piv txwv li muab faib ua ib qho kev txhim kho tshiab thiab ua raws li cov kev cai tam sim no.
Kev sib txuas cov cuab yeej tshiab: Cov txheej txheem kev noj qab haus huv thiab kev nyab xeeb (saib hauv qab) qhia txog qhov xav tau rau cov neeg ua haujlwm muaj peev xwm los xyuas kom meej tias cov khoom siv hluav taws xob thiab kev tiv thaiv tsim nyog rau cov khoom siv sib txuas, piv txwv li, hom RCD yuav tsum tsim nyog rau cov khoom sib txuas / cuab yeej.- Saib BS 7671 531.3.3
* Kev cai lij choj txhais: "Yuav tsum" txhais tau hais tias ib tug neeg muaj lub luag haujlwm lossis lub luag haujlwm los ua qhov kev txiav txim.
Cov kev taw qhia muaj nyob rau hauv HSE Cov Ntaub Ntawv Qhia thiab BS7671 txhawb nqa kev ua raws li cov cai ntawm UK Txoj Cai Kev Noj Qab Haus Huv thiab Kev Nyab Xeeb.
RCDs raug xaiv kom raug muab kev tiv thaiv kev ua txhaum thiab kev tiv thaiv ntxiv - saib Cov Kev Ntsuam Xyuas Kev Nyab Xeeb: HSE Phau Ntawv Ua Haujlwm ntawm Cov Khoom Siv Hluav Taws Xob. Kev taw qhia (Indent 4 & 5) hais tias ua ntej txuas cov khoom siv, "tus neeg muaj peev xwm" yuav tsum kuaj xyuas cov khoom siv. Kev taw qhia (Indent 4 & 5) hais tias ua ntej txuas cov khoom siv, "tus neeg muaj peev xwm" yuav tsum kuaj xyuas cov khoom siv.Phau ntawv (nqe 4 thiab 5) hais tias "tus neeg muaj peev xwm" yuav tsum kuaj xyuas lub zog ua ntej txuas cov khoom siv.Cov lus qhia (indented 4 thiab 5) hais tias "tus neeg tsim nyog" yuav tsum kuaj xyuas lub zog ua ntej txuas lub cuab yeej.Qhov no suav nrog kev tsim nyog thiab kev ua haujlwm ntawm txhua yam khoom siv tiv thaiv RCD tau teeb tsa raws li cov khoom siv.
Peb-theem loads nrog rau cov inverters (xws li twj, compressors, seals, welders, thiab lwm yam) tsim kom muaj ntau zaus thiab du DC to tam sim no uas cuam tshuam rau cov qauv RCDs.Txoj Cai 531.3.3(iv) yuav tsum tau siv hom B RCDs los muab kev tiv thaiv qib uas yuav tsum tau muaj rau cov hom kev thauj khoom no.
“Koj yuav tsum tau ceev faj tiv thaiv kev pheej hmoo ntawm kev tuag lossis raug mob los ntawm hluav taws xob.Cov khoom siv hluav taws xob yuav tsum muaj kev nyab xeeb thiab khaws cia zoo. "HSE hais txog qhov tseem ceeb ntawm Cov Hluav Taws Xob Hluav Taws Xob hauv Cov Kev Cai Ua Haujlwm 1989 thiab txhawb nqa kev taw qhia kom txo / tshem tawm cov kev pheej hmoo cuam tshuam nrog kev tsim tsis raug thiab tsim tsis raug, siv tsis raug thiab tswj cov khoom siv.Hluav taws xob hauv Chaw Ua Haujlwm ntawm 1989 Txoj Cai, Txoj Cai 4-(1) "Txhua lub tshuab yuav tsum tau tsim txhua lub sijhawm kom tiv thaiv kev phom sij raws li qhov ua tau."Cov HSE Phau Ntawv Qhia (HSR25) muaj feem xyuam rau cov kev cai hais txog: tsim (nqe 62), tej yam kev mob thiab kev siv (nqe 63), cov neeg tsim khoom tus yam ntxwv, cov khoom siv tiv thaiv hluav taws xob tsim nyog… (nqe 64)), thiab “Kev nyab xeeb khoom siv” .system nyob ntawm qhov raug xaiv ntawm txhua yam khoom siv hluav taws xob.System”.. (p. 65)
Ntawd yog, RCD muab kev tiv thaiv, yog li ntawd, thaum xaiv hom RCD, nws yog ib qho tsim nyog yuav tsum coj mus rau hauv tus account cov kev xav tau thiab cov lus pom zoo muab rau hauv BS 7671 531.3.3, raws li cov khoom siv ntau yam uas tuaj yeem txuas tau tom qab RCD tiv thaiv. qhov hluav taws xob.
RCDs thiab RCDs yog tsim nyog rau qhov kawg Circuit Court / lub qhov (socket) tiv thaiv: lawv qhov kev ntsuas ruaj khov yog qhov tshwj xeeb tshaj yog tsim nyog rau kev tiv thaiv 30 mA los ntawm kev hloov kho tsis raug cai los ntawm cov neeg ua haujlwm tsis muaj zog (tsim hluav taws xob) - saib BS 7671 531.3.4.1 CBR thiab MRCD muaj cov kev ntsuas kho tau, tuaj yeem ua haujlwm / tus kws tshaj lij. raws li qhia - saib clause 531.3.4.2 ntawm BS7671.
Nco tseg.MRCDs yog siv nrog cov khoom siv uas tsis muaj kev nyab xeeb thiab yog li yuav tsum tau lees paub tom qab OEM sib dhos thiab kev sib txuas (BSEN60947-2 Annex M).Qhov no yog ua los ntsuas tag nrho lub sijhawm txiav tawm ntawm tag nrho MRCD + MCB + S / Trip lossis U / Tso Tawm los ua ib feem ntawm qhov kev xeem sib dhos zaum kawg:
Muab qhov hnyav ntawm qhov chaw tsim kho thiab muaj kev pheej hmoo siab ntawm kev siv cov khoom siv hluav taws xob sab nraum zoov, cov cai yooj yim: cov khoom siv yuav tsum haum rau kev siv, khaws cia hauv kev kho kom zoo thiab siv tau zoo.Qhov no suav nrog kev xaiv hom RCD zoo, tiv thaiv cov cuab yeej zoo xws li RCDs los ntawm ib puag ncig, thiab ua kom nws ua haujlwm zoo.Kev kuaj xyuas ib ntus thiab kuaj xyuas kom ntseeg tau tias RCD muab cov qib kev tiv thaiv uas xav tau thiab tsim nyog rau cov khoom siv txuas nrog.Ua ntej txuas cov cuab yeej tshiab rau lub switchboard uas twb muaj lawm - HSE cov kev cai yuav tsum muaj "tus neeg tsim nyog" los ntsuas lub hwj huam mov kom ntseeg tau tias nws muaj kev nyab xeeb rau kev siv nrog cov khoom siv.
Post lub sij hawm: Aug-16-2022