Nhoroondo yeUL
Muma1890, kwakanga kune moto mukuru muUnited States.Mhosva yaive magetsi.Kudzivirira mamwe matambudziko, VaWilliam h.Merrill yakavamba zviri pamutemo UL (underwriters laboratories) muna 1894. Musi wa24 Kurume 1894, yakaburitsa gwaro rebvunzo rekutanga ndokutanga basa rayo rekuchengetedza chengetedzo.UL iUS chigadzirwa chekuongorora kuchengetedzwa kwechigadzirwa uye certification agency uye muvambi weUS zvigadzirwa zvekuchengetedza zviyero. Kweanopfuura zana ramakore, UL yakaedza zviyero zvekuchengetedza pamazana ezvigadzirwa uye zvikamu.
UL muChina
Kwemakore makumi matatu adarika +, UL yanga ichitarisa kukura kweyakagadzirwa muChina.Pakapinda UL muChina muna 1980, yakagadzira hukama hwakanaka hwekubatana neChina inspection and certification (group) co., LTD.(CCIC).Kudyidzana kwakatanga nekupa masevhisi ekuronda mafekitari eChina uye kubatsira zvigadzirwa zveChinese kupinda mumusika wekuchamhembe kweAmerica.Pamakore gumi apfuura, UL yanga ichiisa mari yakawanda muzvivakwa zvemuno nekuvaka chikwata chemainjiniya kuti vape zviri nyore, zvinokurumidza uye masevhisi emuno akanakisa kuvagadziri veChinese.Munyika yeChina, mafekitari nevagadziri vanodarika zviuru makumi maviri vakapihwa zvitupa zveUL, UL certification service hotline 0755-26069940.
Mhando yeUL mark
Saizi yakajairwa yeUL mark
Anbotek UL yakatenderwa
Parizvino, Anbotek akawana mvumo yeWTDP ye ul60950-1 uye UL 60065, zvinoreva kuti kufanotaura kwese uye bvunzo dzeuchapupu dzinogona kupedzwa muanbotek, zvichideredza zvakanyanya kutenderera kwechitupa.Chitupa chemvumo cheAnbotek ndecheiyi.
