Tsis tas li ntawd, lub cim ETL tseem qhia tau tias cov chaw tsim khoom tsim khoom ua tau raws li qee qhov ntawm cov qauv yuav tsum tau ua, thiab los ntawm kev kawm kev soj ntsuam xyuas lub Hoobkas ua ntu zus los xyuas kom meej qhov sib xws. ETL tau nyob ib ncig ntawm ntau tshaj 100 xyoo. ETL cov 3 tsab ntawv no yog cov ntawv luv ntawm Kev Ntsuas Hluav Taws Xob tau tsim los ntawm tus tsim khoom Edison hauv xyoo 1896, ETL sawv cev rau kev tsim kho tshiab, muaj zog, muaj kev ywj pheej thiab qhib cov khoom kuaj thiab kev nplua nuj.
ETL daim ntawv pov thawj yooj yim txoj kev xeem
1) Kev kuaj tam sim no: Cov qauv siv rau kev ntsuas tam sim no tsis tau kuaj ua ntej kuaj
2) Qhov kub thiab txias li qub: txoj kev sim: thermocouple: tus qauv yuav tsum tau siv 24-30AWG thermocouple, (tam sim no siv hauv chav kuaj 30AWG)
3) Kev ntsuas tam sim no tom qab lub xeev tidal: kev sim dav dav: T= 32 ntxiv rau /-2 degree , RH= 88 ± 2 feem pua. Duration: 48 xuab moos tom qab ua tiav qhov kev sim ntsuas tam sim no T=20~30 degree , RH=93 ntxiv /-3 feem pua
4) Kev ntsuas qhov ntsuas hluav taws xob: cov khoom tsis muaj ob lub rwb thaiv tsev thiab cov khoom siv hauv av: 1000 V / 1 feeb (lub hom phiaj voltage nce lub sij hawm ntawm cov cuab yeej yog teem rau 5 vib nas this, qhov txiav tawm tam sim no yog teem rau 8.3 mA, thiab ces khaws cia rau 1 feeb nyob rau hauv lub hom phiaj voltage)
Hauv feem ntau ntawm Tebchaws Meskas, kev pom zoo ntawm cov khoom siv hluav taws xob yog qhov yuav tsum tau ua. Txhua yam khoom siv hluav taws xob, khoom siv hluav taws xob lossis cov khoom siv hluav taws xob uas muaj lub cim ETL qhia tias cov khoom tau ua tau raws li qhov yuav tsum tau ua ntawm cov qauv kev nyab xeeb feem ntau pom zoo hauv Tebchaws Meskas thiab Canada, thiab nws tau raug sim kom ua tau raws li cov qauv kev nyab xeeb ntawm cov khoom; Nws kuj txhais tau hais tias cov chaw tsim khoom tau pom zoo kom ua raws li kev soj ntsuam nruj me ntsis kom ntseeg tau tias cov khoom zoo sib xws thiab tuaj yeem muag rau Asmeskas thiab Canadian kev lag luam.
Daim ntawv pov thawj ETL thiab ETL daim ntawv pov thawj: Tom qab ntawd daim ntawv pov thawj ETL yuav tsum xa cov ntaub ntawv thov.
Tam sim no, muaj ob txoj hauv kev kom tau txais daim ntawv pov thawj ETL, ib qho yog los ntawm CB daim ntawv tshaj tawm kev hloov pauv, lossis koj tuaj yeem thov ncaj qha, cov ntaub ntawv xav tau yog raws li hauv qab no:
1. Daim ntawv thov
2. Daim ntawv pov thawj CB (tsis xav tau rau daim ntawv thov ncaj qha)
3. Daim ntawv luam ntawm CB xeem tsab ntawv ceeb toom (tsis xav tau rau daim ntawv thov ncaj qha)
4. Cov qauv
5. Lwm yam kev ntsuam xyuas cov txiaj ntsig thiab cov ntaub ntawv cov khoom, xws li: phau ntawv qhia cov khoom, cov duab, cov npe khoom, thiab lwm yam.
(Yog tias xa mus los ntawm CB daim ntawv tshaj tawm, yuav tsum tau kuaj qhov sib txawv)
ETL daim ntawv pov thawj yuav tsum muaj rau cov khoom xa tawm mus rau Tebchaws Meskas thiab Canada. ETL cim qhia tias cov khoom tau dhau qhov kev pom zoo ntawm US NRTL thiab los yog Canadian SCC. Intertek yog ib qho ntawm ob peb lub koom haum tso cai tau lees paub los ntawm OSHA thiab SCC. Peb lub tuam txhab koom tes nrog Intertek los ua tus neeg sawv cev rau ETL ntawv pov thawj. Lub cim ETL lees paub qhov zoo ib yam li UL lossis CSA cim thiab ua raws li cov qauv kev nyab xeeb uas cuam tshuam. Muaj ETL cov cim npe ntawm cov khoom lag luam txhais tau hais tias nws tau ua raws li cov cai qis ntawm cov qauv kev nyab xeeb khoom.
Tsis tas li ntawd, lub cim ETL tseem qhia tau tias cov chaw tsim khoom tsim khoom ua tau raws li qee qhov ntawm cov qauv yuav tsum tau ua, thiab los ntawm kev kawm kev soj ntsuam xyuas lub Hoobkas ua ntu zus los xyuas kom meej qhov sib xws. ETL tau nyob ib ncig ntawm ntau tshaj 100 xyoo. Peb tsab ntawv ETL yog cov ntawv luv ntawm Kev Ntsuas Hluav Taws Xob, tsim los ntawm tus tsim khoom Edison hauv 1896. ETL sawv cev rau kev tsim kho tshiab, cuam tshuam, ywj pheej thiab qhib cov khoom kuaj thiab kev paub dhau los.