Balance Scooter thiab E-scooterRoj teeb hauv North America,
Roj teeb hauv North America,

▍ CTUVus & ETL CERTIFICATION yog dab tsi?

OSHA (Occupational Safety and Health Administration), koom nrog US DOL (Department of Labor), xav kom txhua yam khoom siv hauv chaw ua haujlwm yuav tsum tau kuaj thiab ntawv pov thawj los ntawm NRTL ua ntej muag hauv khw. Cov qauv xeem siv tau suav nrog American National Standards Institute (ANSI) cov qauv; American Society for Testing Material (ASTM) cov qauv, Underwriter Laboratory (UL) cov qauv, thiab lub koom haum kev sib nrig sib lees paub cov qauv.

▍OSHA, NRTL, cTUVus, ETL thiab UL cov ntsiab lus txhais thiab kev sib raug zoo

OSHA:Abbreviation of Occupational Safety and Health Administration. Nws yog kev koom tes ntawm US DOL (Department of Labor).

NRTL:Abbreviation of Nationally Recognized Testing Laboratory. Nws yog tus saib xyuas ntawm lab kev lees paub. Txog tam sim no, muaj 18 lub koom haum thib peb uas tau pom zoo los ntawm NRTL, suav nrog TUV, ITS, MET thiab lwm yam.

cTUV:Daim ntawv pov thawj ntawm TUVRh hauv North America.

ETL:Abbreviation of American Electrical Testing Laboratory. Nws tau tsim nyob rau xyoo 1896 los ntawm Albert Einstein, tus neeg tsim khoom Asmeskas.

UL:Cov ntawv luv ntawm Underwriter Laboratories Inc.

▍ Qhov txawv ntawm cTUVus, ETL & UL

▍ Vim li cas MCM?

● Kev txhawb nqa muag los ntawm kev tsim nyog thiab thev naus laus zis:Raws li lub chaw kuaj neeg ua pov thawj ntawm TUVRH thiab ITS hauv North American Certification, MCM muaj peev xwm ua tau txhua yam kev sim thiab muab kev pabcuam zoo dua los ntawm kev sib pauv tshuab ntsej muag.

● Kev txhawb nqa nyuaj los ntawm kev siv tshuab:MCM tau nruab nrog tag nrho cov khoom siv ntsuas rau cov roj teeb ntawm qhov loj-loj, me me thiab cov haujlwm ua tau zoo (xws li lub tsheb fais fab, lub zog cia, thiab cov khoom siv hluav taws xob digital), muaj peev xwm muab tag nrho cov roj teeb kuaj thiab ntawv pov thawj cov kev pabcuam hauv North America, npog cov qauv. UL2580, UL1973, UL2271, UL1642, UL2054 thiab lwm yam.

Txheej txheem cej luam:
Electric scooter thiab skateboard muaj nyob rau hauv UL 2271 thiab UL 2272 thaum muaj ntawv pov thawj nyob rau hauv North America. Ntawm no yog cov lus qhia, ntawm qhov ntau yam uas lawv npog thiab cov kev xav tau, ntawm qhov sib txawv ntawm UL 2271 thiab UL 2272: UL 2272 yog muaj rau cov khoom siv ntawm tus kheej, xws li: hluav taws xob scooter thiab tsheb sib npaug.
Los ntawm tus txheej txheem, UL 2271 yog tus qauv roj teeb, thiab UL 2272 yog tus qauv ntaus ntawv. Thaum ua cov ntaub ntawv pov thawj ntawm UL 2272, lub roj teeb puas yuav tsum tau lees paub rau UL 2271 ua ntej?
Ua ntej, cia peb paub txog cov kev cai ntawm UL 2272 rau cov roj teeb (tsuas yog lithium-ion roj teeb / cell raug txiav txim siab hauv qab no):
Cell: lithium-ion hlwb yuav tsum ua raws li cov cai ntawm UL 2580 lossis UL 2271;
Roj teeb: Yog tias lub roj teeb ua tau raws li qhov yuav tsum tau ua ntawm UL 2271, nws tuaj yeem raug zam los ntawm cov kev ntsuam xyuas rau overcharge, luv-circuit, over-discharge thiab unbalanced charging.
Nws tuaj yeem pom tau tias yog tias lub roj teeb lithium siv rau hauv cov khoom siv uas siv tau rau UL 2272, nws tsis tas yuav tsum ua daim ntawv pov thawj UL 2271, tab sis lub xov tooj ntawm tes yuav tsum ua kom tau raws li cov cai ntawm UL 2580 lossis UL 2271.