Zeziphi iziqinisekiso eziza kubandakanyeka xa iipilisi zithunyelwe kwelinye ilizwe kwiNtengiso yaseNtshona Melika?

I-IL sisifinyezo semikhono yomhlaba ophantsi kwe-Inc. I-In Istitti yoVavanyo loKhuseleko lwe-United States kunye neziko labucala labucala elibandakanyekayo kuvavanyo lwezokhuseleko kunye nokuchongwa kwihlabathi. Yinzuzo ezimeleyo, yenzuzo, yobungcali obuqhuba ngovavanyo lokhuseleko loluntu. Isebenzisa iindlela zovavanyo zesayensi ukufundisisa kunye nokumisela ukuba ngaba izinto ezahlukeneyo, izixhobo, iimveliso, izixhobo, izakhiwo, njl njl. Igqiba, ibhala, kwaye imicimbi ehambelana nayo kwaye inceda ukunciphisa kwaye kuthintele iingozi ebomini. Siza kuqokelela ulwazi ngomonakalo wepropathi kunye nokuqhuba uqoqosho ngokufumana uphando ngaxeshanye. Isatifikethi se-UL sisiqinisekiso esinganyanzelekanga eUnited States. Kuvavanyo ikakhulu kwaye uqinisekise ukusebenza kwemveliso yokhuseleko lwemveliso. Umda wokuqinisekiswa kwayo awubandakanyi i-EMC (i-elektromagnetic

I-ETL luphawu olukhethekileyo lwe-Interkk, oyena mgangatho wehlabathi ophambili kunye neenkonzo zoncedo kunye nembali yokuthandana kwi-1896. Emva kokuba i-Eamputer Amerison yasungula i-labhoti yovavanyo lweLamp, yatshintsha igama layo ngo-1904, nto leyo Yaba nanamhlanje i-etl kwaye iyonwabela igama eliphezulu eUnited States nakwihlabathi liphela. Ukusukela oko kwaseka ngaphezulu kwenkulungwane edlulileyo, i-ETL iphuhlise kwilabhoratri ehlukeneyo kwaye idweliswe njengelebhu kazwelonke ehlolwe i-Socients ekwamkelweyo nguMgaqo-nkqubo woKhuseleko lwezeMsebenzini wase-US (Osha). Ukuvavanya amalabhoratori-rgl). Kwangelo xesha, iBhunga leMigangatho yeCanada-SCC likwamkela i-ETL njengequmrhu eliqinisekisiweyo kunye nombutho ovunyiweyo wokuvavanywa, kwaye uyayiqonda njengombutho ozimeleyo wemveliso eCanada (ungangena kwiwebhusayithi yeOsha: / /www.Sha.gov ngolwazi oluthe kratya).

Ngalo lonke ixesha njengalo naluphi na uhlobo lwemveliso yombane, yoomatshini okanye i-electromachinical Imveliso ye-ETL ye-ETL, ibonisa ukuba imveliso ifezekisile ezona mfuno zisezantsi zezemveliso zokhuseleko ezisesikweni. Ivavanywe yi-Interkk, iLebhu eyamkelweyo kuzwelonke (NRTL), kwaye ihambelana nemigangatho efanelekileyo yesizwe; Ikwathetha ukuba umzi-mveliso wemveliso uyavuma ukuba uhlolo olungapheliyo lokuqinisekisa ukungqinelana komgangatho wemveliso, onokuthengiswa kwimarike yase-US nakwi-US naseKhanada. OKO KUTHETHWA NGABANTSI, abathengisi kunye nabathengi kukuba bazithenge iimveliso ezivavanyiweyo kwaye ziqinisekiswe ngumntu wesithathu.

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