+86-10-67886688
Nrhiav
UL daim ntawv pov thawj yog daim ntawv pov thawj uas tsis tas yuav tsum tau muaj nyob hauv Tebchaws Meskas, feem ntau yog kuaj thiab ntawv pov thawj ntawm cov khoom lag luam kev nyab xeeb, thiab nws cov ntawv pov thawj tsis suav nrog EMC (electromagnetic compatibility) cov yam ntxwv ntawm cov khoom.UL yog ib lub koom haum ywj pheej, tsis muaj txiaj ntsig, cov koom haum tshaj lij uas ntsuas kev nyab xeeb rau pej xeem.UL tau tsim muaj nyob rau hauv 1894. Nyob rau hauv thawj theem, UL tsuas yog tso siab rau cov nyiaj pab los ntawm lub tuam tsev pov hwm hluav taws los tswj nws txoj haujlwm.Nws tsis yog txog xyoo 1916 uas UL tau ywj pheej kiag li.Tom qab ze li ntawm ib puas xyoo ntawm txoj kev loj hlob, UL tau dhau los ua lub ntiaj teb muaj npe pov thawj lub cev nrog cov txheej txheem kev tswj hwm nruj, kev txhim kho tus qauv thiab cov txheej txheem ntawv pov thawj khoom.
Daim ntawv pov thawj UL tau tsim los ntawm daim ntawv pov thawj, lub koom haum txhim kho tus qauv, lub koom haum lub koom haum, lub koom haum ua haujlwm.1894, thiab UL kuj yog tus tsim tawm ntawm Canadian lub teb chaws tus qauv.
Tau txais daim ntawv pov thawj UL yog qhov tseem ceeb vim tias nws qhia tau hais tias cov chaw tsim khoom thiab cov neeg muab kev pabcuam muaj peev xwm.Cov neeg siv khoom xav paub lub tuam txhab uas lawv ntiav los txhim kho lawv cov cuab yeej tsim nyog los ua txoj haujlwm raug, thiab lawv siv sijhawm los xyuas kom meej tias tag nrho cov khoom lawv nruab tau raug kuaj thiab ua tau raws li cov qauv kev nyab xeeb.UL Certification kuj qhia tau hais tias ib lub tuam txhab ua tau raws li tag nrho cov cheeb tsam thiab tsoom fwv kev nyab xeeb thiab ib puag ncig cov cai.Koj tuaj yeem tso siab tau paub tias koj cov neeg ua haujlwm thiab cov neeg siv khoom muaj kev nyab xeeb.
UL Verification Mark muab lub hom phiaj, kev tshawb fawb los ntawm lwm tus neeg soj ntsuam thiab pov thawj rau cov tuam txhab lag luam kev lag luam rau lawv cov khoom, xws li cov khoom lag luam, kev ua tau zoo, thiab kev thov ua haujlwm.
1. Cov khoom siv ntau yam khoom muaj kev ruaj ntseg;thaum cov neeg siv khoom thiab cov chaw xaiv US cov ntawv pov thawj cov khoom, nws yog qhov yooj yim los xaiv cov khoom cim nrog rau tag nrho lub khw.
2. Cov keeb kwm ntawm UL muaj keeb kwm ntau tshaj 100 xyoo.Koj cov duab tau tob tob hauv cov neeg siv khoom thiab tsoomfwv.Yog tias koj tsis muag cov khoom rau cov neeg siv khoom, koj yuav xav tau cov khoom lag luam kom muaj ntawv pov thawj UL, kom cov khoom tuaj yeem rov ua dua.
3. Cov neeg siv khoom Asmeskas thiab cov chaw yuav khoom muaj kev ntseeg siab ntau dua hauv tuam txhab cov khoom.
4. Muaj ntau tshaj 40,000 cheeb tsam tswj hwm hauv Tebchaws Meskas hauv tsoomfwv, xeev, lub nroog, thiab tsoomfwv hauv nroog, txhua tus paub txog UL daim ntawv pov thawj.
Daim ntawv pov thawj UL tau txais los ntawm cov khoom siv Soloon yog qhov tseem ceeb rau kev muag khoom ntawm peb cov khoom hauv Tebchaws Meskas, Canada thiab lwm lub tebchaws.