Mndandanda wa S6061SC/SF wobwerera ku masika ndi zoyatsira utsi wamoto zidadutsa chiphaso cha UL.

Chitsimikizo cha UL ndi chiphaso chosafunikira ku United States, makamaka kuyesa ndi kutsimikizira zachitetezo chazinthu, ndipo kukula kwake sikuphatikiza mawonekedwe a EMC (electromagnetic compatibility) pazogulitsa.UL ndi bungwe lodziyimira pawokha, lopanda phindu, laukadaulo lomwe limayesa chitetezo cha anthu.UL inakhazikitsidwa mu 1894. Pachiyambi choyamba, UL makamaka idadalira ndalama zoperekedwa ndi dipatimenti ya inshuwalansi ya moto kuti ipitirize kugwira ntchito.Sizinafike mpaka 1916 pomwe UL idadziyimira pawokha.Pambuyo pazaka pafupifupi zana zachitukuko, UL yakhala bungwe lodziwika bwino la ziphaso padziko lonse lapansi lomwe lili ndi machitidwe okhwima oyendetsera mabungwe, chitukuko chokhazikika ndi njira zopangira ziphaso.

Satifiketi ya UL idakhazikitsidwa ndi certification, standard development agency, agency agency, agency agency.1894, ndipo UL ndiyenso wopanga miyezo ya dziko la Canada.

Kupeza UL Certification ndikofunikira chifukwa kumawonetsa luso la wopanga ndi opereka chithandizo.Ogwiritsa ntchito amafuna kudziwa kuti kampani yomwe amalemba ntchito kuti akhazikitse zida zawo ndi oyenera kugwira ntchitoyo moyenera, komanso kuti amatenga nthawi kuti awonetsetse kuti zinthu zonse zomwe amaziyika zimayesedwa ndikukwaniritsa zofunikira zachitetezo.UL Certification ikuwonetsanso kuti kampani imakumana ndi chitetezo cham'deralo ndi federal komanso malamulo achilengedwe.Mutha kukhala otsimikiza podziwa kuti antchito anu ndi makasitomala ali otetezeka.

Chizindikiro cha UL Verification Mark chimapereka cholinga, kuyesa kwa gulu lachitatu ndikutsimikizira zomwe opanga amapanga pazogulitsa zawo, monga momwe zinthu zimagwirira ntchito, mtundu wake, ndi zomwe akufuna.

Kufunika kwa chizindikiro cha certification cha UL kumakampani:

1. The mankhwala utenga zosiyanasiyana chitetezo mankhwala;pamene ogula ndi mayunitsi asankha chiphaso cha zinthu zaku US, ndikwabwino kusankha zikhomo ndi msika wonse.

2. Mbiri ya UL ili ndi mbiri yopitilira zaka 100.Chithunzi chanu chimakhazikika kwambiri kwa ogula ndi boma.Ngati simugulitsa zinthu kwa ogula, mudzafuna kuti zinthu zikhale ndi certification ya UL, kuti malonda abwerezedwe.

3. Ogula aku America ndi mayunitsi ogula amakhala ndi chidaliro chochulukirapo pazinthu zamakampani.

4. Pali maboma opitilira 40,000 mu maboma a federal, maboma, zigawo, ndi ma municipalities a United States, onse omwe amazindikira chiphaso cha UL.

Satifiketi ya UL yopezedwa ndi zinthu za Soloon ndiyofunika kwambiri pakugulitsa zinthu zathu ku United States, Canada ndi mayiko ena.