Nalane ea UL
Lilemong tsa bo-1890, ho ile ha e-ba le mollo o moholo United States.Sesosa e ne e le motlakase.Ho thibela litlokotsi tse ling, Mong. William h.Merrill e thehile semmuso UL (underwriters laboratories) ka 1894. Ka la 24 Hlakubele 1894, e ile ea phatlalatsa tlaleho ea eona ea pele ea teko 'me ea qala mosebetsi oa eona oa ho sireletsa polokeho.UL ke setsi sa US sa liteko tsa polokeho ea lihlahisoa le setifikeiti ebile ke mothehi oa litekanyetso tsa polokeho ea lihlahisoa tsa US. Ho feta lilemo tse lekholo, UL e lekile litekanyetso tsa polokeho lihlahisoa le likarolo tse makholo.
UL naheng ea China
Lilemong tse 30 + tse fetileng, UL e ntse e lebisa tlhokomelo ho kholo ea entsoeng Chaena.Ha UL e kena Chaena ka 1980, e ile ea theha likamano tse ntle tsa tšebelisano-'moho le China inspection and certification (group) co., LTD.(CCIC).Tšebelisano-'moho e qalile ka ho fana ka lits'ebeletso tsa ho latela lifeme tsa Machaena le ho thusa lihlahisoa tsa Machaena ho kena 'marakeng oa Amerika Leboea.Ka lilemo tse 10 tse fetileng, UL e' nile ea tsetela haholo litsing tsa lehae le ho aha sehlopha sa baenjiniere ho fana ka lintho tse bonolo, tse potlakileng le tse bonolo. lits'ebeletso tse ntle tsa lehae ho bahlahisi ba Machaena.Naheng ea China, lifeme le bahlahisi ba fetang 20,000 ba netefalitsoe ka UL, mohala oa litšebeletso tsa UL 0755-26069940.
Mofuta oa letšoao la UL
Boholo bo tloaelehileng ba letšoao la UL
Anbotek UL e lumelletsoe
Hajoale, Anbotek e fumane tumello ea WTDP ea ul60950-1 le UL 60065, ho bolelang hore liteko tsohle tsa ho bolela esale pele le lipaki li ka phethoa ka anbotek, ho fokotsa haholo potoloho ea setifikeiti.Setifikeiti sa tumello sa Anbotek se tjena.
