LOW VOLTAGE DIRECTIVE
Raws li kev txheeb cais ntawm EU lub qhov rooj ruaj ntseg (EU RAPEX), xyoo 2020, EU tau tshaj tawm tag nrho 272 cov ntawv ceeb toom rov qab uas tsis ua raws li Cov Lus Qhia Tsawg Voltage. Hauv 2021, tag nrho ntawm 233 qhov rov qab tau raug xa tawm; Cov khoom lag luam suav nrog USB chargers, fais fab adapters, fais fab sawb, teeb sab nraum zoov, teeb pom kev zoo nkauj strips thiab lwm yam khoom siv hluav taws xob thiab hluav taws xob. Yog vim li cas yog vim li cas kev tiv thaiv rwb thaiv tsev ntawm cov khoom no tsis txaus, cov neeg siv khoom tuaj yeem kov qhov chaw nyob thiab ua rau hluav taws xob poob siab, uas tsis ua raws li Cov Lus Qhia Tsawg Voltage thiab EU cov qauv EN62368 thiab EN 60598. Cov Lus Qhia Tsawg Voltage tau dhau los ua qhov kev pheej hmoo siab. barrier rau cov khoom siv hluav taws xob nkag mus rau EU.
"Low Voltage Directive" thiab "Low Voltage"
"Low Voltage Directive" (LVD):Keeb kwm tsim nyob rau hauv 1973 raws li Cov Lus Qhia 73/23/EEC, Cov Lus Qhia tau dhau los ua ntau qhov kev hloov kho thiab tau hloov kho hauv 2006
mus rau 2006/95/EC raws li EU txoj cai npaj kev cai, tab sis cov khoom tseem tsis hloov. Nyob rau lub Peb Hlis 2014, European Union tau tshaj tawm ib qho tshiab ntawm Low Voltage Directive 2014/35/EU, uas hloov qhov qub 2006/95/EC Directive. Cov lus qhia tshiab tau pib siv rau lub Plaub Hlis 20, 2016.
Lub hom phiaj ntawm LVD Cov Lus Qhia yog kom ntseeg tau tias cov khoom siv hluav taws xob muag thiab tsim nyob rau hauv European Union muaj kev nyab xeeb rau cov neeg siv khoom thaum lawv ua haujlwm zoo lossis thaum lawv ua tsis tiav.“低电压”:
LVD Cov Lus Qhia txhais cov khoom "tsis muaj hluav taws xob" raws li cov khoom siv hluav taws xob nrog cov ntsuas hluav taws xob ntawm 50-1000 volts AC lossis 75-1500 volts DC.
Daim ntawv ceeb toom:Cov khoom siv hluav taws xob uas muaj qhov hluav taws xob qis dua 50 volts AC lossis tsawg dua 75 volts DC yog tswj hwm los ntawm EU General Product Safety Directive (2001/95 / EC) thiab tsis poob nyob rau hauv lub Scope ntawm Low Voltage Directive. Qee cov khoom lag luam xws li cov khoom siv hluav taws xob hauv cov huab cua tawg, cov khoom siv hluav taws xob thiab cov khoom siv kho mob, cov khoom siv hluav taws xob hauv tsev thiab cov khoom siv hluav taws xob kuj tseem tsis tau them los ntawm Low Voltage Directive.
Piv nrog 2006/95/EC, cov kev hloov pauv tseem ceeb ntawm 2014/35/EU:
1. Ua kom muaj kev lag luam yooj yim dua thiab muaj kev ruaj ntseg ntau dua.
2. Qhia meej txog lub luag haujlwm ntawm cov tuam txhab, cov khoom lag luam thiab cov xa khoom.
3. Ntxiv dag zog rau kev taug qab thiab kev saib xyuas cov khoom siv tsis raug.
4. Nws yog qhov tseeb tias cov chaw tsim khoom yuav tsum tau lees paub qhov kev ntsuas kev sib haum xeeb ntawm nws tus kheej, thiab tsis tas yuav tsum muaj lub cev ceeb toom thib peb los cuam tshuam rau cov txheej txheem.
Qhov yuav tsum tau muaj ntawm LVD Cov Lus Qhia
Cov kev cai ntawm LVD cov lus qhia tuaj yeem raug sau ua 10 lub hom phiaj kev nyab xeeb raws li 3 yam xwm txheej:
1. Cov kev cai nyab xeeb raws li kev cai dav dav:(1) Txhawm rau kom ntseeg tau tias cov khoom siv hluav taws xob tuaj yeem siv tau raws li lub hom phiaj tsim, thiab qhov kev ua tau zoo yuav tsum raug txheeb xyuas ntawm cov khoom siv lossis hauv daim ntawv tshaj tawm. (2) Kev tsim cov khoom siv hluav taws xob thiab nws cov khoom yuav tsum xyuas kom meej tias lawv tuaj yeem ntsia tau thiab txuas tau zoo thiab raug. (3) Yog tias cov cuab yeej siv tau raws li nws lub hom phiaj tsim thiab tswj kom zoo, nws tsim thiab tsim khoom yuav tsum xyuas kom meej tias nws tuaj yeem ua tau raws li qhov yuav tsum tau muaj kev tiv thaiv kev phom sij hauv ob qhov xwm txheej hauv qab no.2. Cov kev cai tiv thaiv kev nyab xeeb thaum cov khoom siv nws tus kheej tsim kev pheej hmoo:(1) Kev tiv thaiv txaus ntawm tib neeg thiab tsiaj txhu los ntawm kev raug mob ntawm lub cev lossis lwm yam kev phom sij los ntawm kev tiv thaiv hluav taws xob ncaj qha lossis tsis ncaj qha. (2) Tsis muaj qhov kub thiab txias, arcing lossis hluav taws xob yuav raug tsim. (3) Kev tiv thaiv txaus ntawm tib neeg, tsiaj txhu thiab cov khoom ntiag tug los ntawm kev phom sij uas tsis yog hluav taws xob (xws li hluav taws xob) tshwm sim los ntawm cov khoom siv hluav taws xob. (4) Kev tiv thaiv rwb thaiv tsev tsim nyog nyob rau hauv cov xwm txheej tau pom.3. Yuav tsum muaj kev tiv thaiv kev nyab xeeb thaum cov khoom siv cuam tshuam los ntawm kev cuam tshuam sab nraud:(1) Ua tau raws li qhov xav tau ntawm kev ua haujlwm ntawm cov tshuab ua haujlwm thiab yuav tsis ua rau muaj kev phom sij rau tib neeg, tsiaj txhu thiab khoom. (2) Resistant mus rau non-mechanical influences nyob rau hauv kev cia siab ib puag ncig kom tsis txhob muaj kev phom sij rau tib neeg, tsiaj txhu thiab khoom. (3) Tsis muaj kev puas tsuaj rau tib neeg, tsiaj nyeg thiab khoom vaj khoom tsev raws li kev thauj khoom ntau dhau (overloading).
Coping Tswv yim:Ua raws li cov qauv kev sib haum xeeb yog ib txoj hauv kev zoo los daws LVD Cov Lus Qhia. "Cov qauv kev sib haum xeeb" yog ib chav kawm ntawm cov kev qhia tshwj xeeb nrog cov kev cai lij choj, uas yog tsim los ntawm European cov qauv txheej txheem xws li CEN (European Committee for Standardization) raws li EU cov cai, thiab tsis tu ncua luam tawm hauv Cov Ntawv Xov Xwm ntawm European Union. Ntau cov qauv kev sib haum xeeb tau hloov kho nrog kev siv rau IEC cov qauv ntawm International Electrotechnical Commission. Piv txwv li, tus qauv siv tau rau kev sib haum xeeb rau USB chargers, EN62368, yog hloov los ntawm IEC62368. Tshooj 3, Tshooj 12 ntawm LVD Cov Lus Qhia qhia meej tias, raws li lub hauv paus tseem ceeb rau kev ntsuas kev ua raws, cov khoom siv hluav taws xob uas ua tau raws li cov qauv kev sib haum xeeb yuav raug txiav txim ncaj qha kom ua tau raws li lub hom phiaj kev nyab xeeb ntawm Cov Lus Qhia Tsawg Voltage. Cov khoom lag luam uas tsis tau tshaj tawm cov qauv kev sib haum xeeb yuav tsum tau soj ntsuam nrog kev siv rau IEC cov qauv lossis cov tswv cuab hauv lub xeev cov qauv raws li cov txheej txheem sib xws.
Yuav thov li cas rau daim ntawv pov thawj CE-LVD
Raws li LVD Cov Lus Qhia, cov chaw tsim khoom hluav taws xob tuaj yeem npaj cov ntaub ntawv, ua cov kev ntsuam xyuas ua raws, thiab tsim cov ntawv tshaj tawm EU ntawm kev ua raws li lawv tus kheej, yam tsis muaj kev koom tes ntawm cov koom haum thib peb. Tab sis kev thov rau daim ntawv pov thawj CE-LVD feem ntau yog yooj yim dua los lees paub los ntawm kev ua lag luam thiab txhim kho kev yooj yim ntawm kev lag luam thiab kev ncig.
Cov txheej txheem hauv qab no feem ntau ua raws li: 1. Xa cov ntaub ntawv thov mus rau lub koom haum muaj ntawv pov thawj, xws li cov ntaub ntawv thov uas muaj cov ntaub ntawv yooj yim ntawm cov neeg thov thiab cov khoom. 2. Xa daim ntawv qhia cov khoom thiab cov ntaub ntawv qhia txog cov khoom siv (xws li cov qauv tsim hluav taws xob, cov npe khoom thiab cov ntaub ntawv pov thawj, thiab lwm yam). 3. Lub cev muaj ntawv pov thawj ua cov khoom kuaj raws li cov qauv tsim nyog, thiab muab cov ntaub ntawv pov thawj tom qab cov khoom tau dhau qhov kev xeem. 4. Lub cev muab ntawv pov thawj muab daim ntawv pov thawj CE-LVD raws li cov ntaub ntawv tseem ceeb thiab cov ntawv xeem.
Cov khoom lag luam uas tau txais daim ntawv pov thawj CE-LVD yuav tsum muaj kev ruaj ntseg ntawm cov khoom lag luam, thiab tsis tuaj yeem hloov pauv cov qauv khoom, kev ua haujlwm, thiab cov khoom tseem ceeb, thiab txuag cov ntaub ntawv sib raug zoo rau kev saib xyuas thiab tshuaj xyuas.
Lwm cov lus qhia: Ib qho yog txhawm rau ntxiv dag zog rau kev taug qab cov lus qhia. Ua tib zoo taug qab cov qauv ntawm cov kev cai thiab cov qauv kev sib haum xeeb xws li EU LVD Cov Lus Qhia, ua raws li cov kev cai tshiab tshaj plaws, thiab txhim kho kev tsim khoom thiab tsim ua ntej. Qhov thib ob yog txhawm rau ntxiv dag zog rau kev kuaj xyuas kev nyab xeeb ntawm cov khoom. Rau cov khoom lag luam nrog cov qauv kev sib haum xeeb, kev tswj xyuas zoo yog muab qhov tseem ceeb rau cov qauv kev sib haum xeeb, thiab cov khoom uas tsis muaj cov qauv kev sib haum xeeb tau muab qhov tseem ceeb rau kev xa mus rau IEC cov qauv, thiab cov koom haum thib peb ua raws li kev xeem yog ua thaum tsim nyog. Qhov thib peb yog los txhawb kev cog lus tiv thaiv kev pheej hmoo. LVD Cov Lus Qhia muaj cov kev xav tau meej ntawm lub luag haujlwm ntawm cov tuam txhab, cov neeg xa khoom thiab cov xa tawm.
Post lub sij hawm: Aug-19-2022