Kuburitswa kweUL 2054 edition yechitatu
Kuburitswa kweUL 2054edition yechitatu,
UL 2054,
▍ Chii chinonzi cTUVus & ETL CERTIFICATION?
OSHA (Occupational Safety and Health Administration), yakabatana neUS DOL (Department of Labor), inoda kuti zvigadzirwa zvese zvinofanirwa kushandiswa munzvimbo yebasa zviongororwe nekupihwa zvitupa neNRTL zvisati zvatengeswa pamusika. Miyero yekuyedza inoshanda inosanganisira American National Standards Institute (ANSI) zviyero; American Society for Testing Material (ASTM) zviyero, Underwriter Laboratory (UL) zviyero, uye fekitori mutual-recognition sangano zviyero.
▍OSHA, NRTL, cTUVus, ETL uye UL tsananguro yematemu nehukama
OSHA:Kupfupisa kweOccupational Safety uye Health Administration. Iyo mubatanidzwa weUS DOL (Dhipatimendi reVashandi).
NRTL:Kupfupisa kweNationally Recognized Testing Laboratory. Ndiyo inotarisira kubvumidzwa kwe lab. Kusvika parizvino, kune gumi nemasere echitatu-bato rekuyedza masangano akabvumidzwa neNRTL, kusanganisira TUV, ITS, MET zvichingodaro.
cTUVus:Certification chiratidzo cheTUVRh muNorth America.
ETL:Kupfupisa kweAmerican Electrical Testing Laboratory. Yakavambwa muna 1896 naAlbert Einstein, muvambi weAmerica.
UL:Nhoroondo ye Underwriter Laboratories, Inc.
▍Musiyano pakati pecTUVus, ETL & UL
| Item | UL | cTUVus | ETL |
| Kushandiswa mwero | Same | ||
| Institution inokwanisa kuwana risiti yechitupa | NRTL (rabhoritari yakabvumidzwa nenyika) | ||
| Applied market | North America (US neCanada) | ||
| Testing uye certification institution | Underwriter Laboratory (China) Inc inoita bvunzo uye inoburitsa tsamba yekupedzisa chirongwa | MCM inoita bvunzo uye TUV nyaya chitupa | MCM inoita bvunzo uye TUV nyaya chitupa |
| Kutungamira nguva | 5-12W | 2-3W | 2-3W |
| Mari yekushandisa | Wepamusoro pazera | Inenge 50 ~ 60% yeUL mutengo | Inenge 60 ~ 70% yeUL mutengo |
| Advantage | Nzvimbo yekuAmerica yemuno ine kuzivikanwa kwakanaka muUS neCanada | An International institution ine masimba uye inopa mutengo unonzwisisika, zvakare unozivikanwa neNorth America | Sangano reAmerica rine kuzivikanwa kwakanaka muNorth America |
| Kukanganisa |
| Kuzivikanwa kushoma kwemhando pane iyo yeUL | Kuzivikanwa kushoma pane kuya kweUL mukupihwa chitupa chechikamu chechigadzirwa |
▍ Neiko MCM?
● Tsigiro yakapfava kubva kuhunyanzvi uye tekinoroji:Seyapupu yekuyedza lab yeTUVRH neITS muNorth America Certification, MCM inokwanisa kuita marudzi ese ekuyedza uye nekupa sevhisi iri nani nekuchinjana tekinoroji chiso nechiso.
● Tsigiro yakaoma kubva kune tekinoroji:MCM inoshongedzerwa nemidziyo yese yekuyedza mabhatiri ehukuru-hukuru, diki-hukuru uye chaiyo mapurojekiti (kureva yemagetsi nharembozha, simba rekuchengetera, uye zvemagetsi zvigadzirwa zvedhijitari), inokwanisa kupa bhatiri rese rekuyedza uye masevhisi etifiketi muNorth America, inovhara zviyero. UL2580, UL1973, UL2271, UL1642, UL2054 zvichingodaro.
UL 2054 Ed.3 yakaburitswa muna Mbudzi 17, 2021. Senhengo yechiyero cheUL, MCM yakapinda mukuwongorora chiyero, uye ikapa mazano ane musoro echigadziriso chakazogamuchirwa mushure.
Shanduko dzakaitwa pazviyero zvinonyanya kubatanidzwa nezvikamu zvishanu, izvo zvinodimikirwa sezvinotevera:Kudzokororwa kwakasiyana-siyana kunoitwa muChiyero chose; Zvikamu 2 - 5, 6.1.2 - 6.1.4,
6.5.1, 8.1, 8.2, 11.10, 12.13, 13.3, 14.7, 15.2, 16.6, Chikamu 23 musoro, 24.1, Appendix A. Kujekeswa kwezvinodiwa kune zvinyorwa zvekunamatira; Section 29, 30.1, 30.2.Kuwedzera kwezvinodiwa uye nzira dzeMark Durability Test .Made Limited Power Source Test an Option chinodiwa; 7.1. Yakajekesa kupikisa kwekunze mukuedzwa mu 11.11. The Short Circuit Test yakarongedzerwa kushandisa copper wire kune short circuit yakanaka uye yakaipa anodes pachikamu 9.11 chepakutanga, ikozvino yakadzokororwa sekushandisa 80 ± 20m.
Ω zvekunze resistors.
Wedzero yechikamu 6.3: Zvizhinji zvinodikanwa pachimiro chewaya uye materminal: Waya inofanira kuiswa insulation, uye inofanirwa kusangana nezvinodiwa zveUL 758 uchifunga kuti tembiricha inobvira nemagetsi zvinosanganikwa nazvo mubhatiri pack zvinogamuchirika. ngaisimbiswe nemichina, uye kubata kwemagetsi kunofanirwa kupihwa, uye hapafanirwe kuve nekukakavadzana pane zvinongedzo nematerminal. Mutobvu unofanirwa kuve wakachengeteka, uye uchengetedzwe kure nekumucheto kwakapinza uye zvimwe zvikamu zvinogona kukuvadza waya insulator.
