UL

UL LLC yog Asmeskas kev pab tswv yim thoob ntiaj teb kev nyab xeeb thiab ntawv pov thawj tuam txhab muaj nyob hauv Northbrook, Illinois. Nws tswj hwm cov chaw haujlwm hauv 46 lub tebchaws. Tsim los ntawm xyoo 1894 ua Kev Sau Npe Hluav Taws Xob Hluav Taws Xob (ib lub chaw lis haujlwm ntawm Pawg Thawj Tswj Xyuas Hluav Taws Hluav Taws), nws tau paub thoob plaws hauv lub xyoo pua 20th li Cov kws tshawb fawb hu ua Underwriters thiab koom nrog kev tshuaj ntsuam xyuas kev nyab xeeb ntawm ntau lub xyoo pua tshiab thev naus laus zis, feem ntau tshwj xeeb tshaj yog cov pej xeem siv hluav taws xob thiab kev teeb tsa cov qauv kev nyab xeeb rau cov cuab yeej hluav taws xob thiab cov khoom siv.

UL muab cov ntawv pov thawj ntsig txog kev nyab xeeb, kev siv tau, tshuaj ntsuam, tshuaj xyuas, tshuaj xyuas, kev qhia thiab kev cob qhia rau cov neeg siv ntau yam, suav nrog cov chaw tsim khoom, cov khw muag khoom, cov tsim kev cai, cov kev tswj hwm, cov tuam txhab pabcuam, thiab cov neeg siv khoom.

UL yog ib lub tuam txhab ntau tau txais kev pom zoo los ntsuas kev nyab xeeb los ntawm Tsoom Fwv Teb Chaws Asmeskas koom haum Kev Nyab Xeeb Kev Nyab Xeeb thiab Kev Tswj Xyuas Kev Noj Qab Haus Huv (OSHA). OSHA khaws cov npe kuaj pom zoo nyob hauv lub chaw soj nstuam, uas yog lub npe hu ua Nationally Recognized Test Laboratories.

UA LLC

UL Daim Ntawv Pov Thawj Ua Haujlwm
hom	Ntiav, LLC
Saib ua ntej nawb	Cov kws tshawb fawb hu ua Underwriters
Nrhiav tau	Xyoo 1894; 122 xyoo dhau los
founder	William Henry Merrill
Thaj chaw muab kev pab	104 lub teb chaws
Cov neeg tseem ceeb	Keith Williams (Thawj Tswj Hwm thiab CEO)
Tus naj npawb ntawm cov neeg ua haujlwm	12,000 (2013)
Lub vas sab	www.ul.com

Keeb kwm

Underwriters Laboratories Inc. tau tsim tsa xyoo 1894 los ntawm William Henry Merrill. Thaum ntxov ntawm nws txoj haujlwm ua hluav taws xob hluav taws xob hauv Boston, 25-xyoo-laus Merrill tau raug xa mus rau tshuaj ntsuam xyuas "World Fair's Palace of Electric". Thaum pom qhov muaj peev xwm loj hlob hauv nws daim teb, Merrill nyob hauv Chicago mus nrhiav pom Underwriters Laboratories.

Tsis ntev los no Merrill tau mus ua haujlwm tsim cov qauv, tso tshuaj ntsuam, tsim cov khoom tsim thiab ua kom pom kev phom sij. Ib sab ntawm nws cov haujlwm ntawm UL, Merrill tau ua haujlwm ua National National Protection Protection Association tus tuav ntaub ntawv (1903–1909) thiab tus thawj tswj hwm (1910-1912) thiab yog tus tswv cuab nquag ntawm Chicago Board thiab Union Committee. Hauv xyoo 1916, Merrill ua UL thawj tus thawj coj.

UL luam tawm nws thawj tus qauv, "Tin Clad Hluav Taws Kub Qhov Rooj", nyob rau xyoo 1903. Xyoo tom qab, UL Mark tau ua nws qhov ua ntej nrog daim ntawv lo ntawm lub tua hluav taws. Xyoo 1905, UL teeb tsa Kev Pabcuam Sau Npe rau qee yam khoom lag luam uas xav tau tshuaj xyuas ntau zaus. UL cov kws tshuaj ntsuam tau ua thawj lub Hoobkas tshuaj xyuas cov ntawv lo ntawm cov khoom lag luam ntawm cov chaw tsim khoom - cov kev coj ua uas tseem yog qhov tseem ceeb ntawm UL txoj kev kuaj thiab cov ntawv pov thawj.

UL tau nthuav dav mus ua ib lub koom haum nrog 64 Lub chaw soj nstuam, kuaj thiab cov ntawv pov thawj lees paub ua haujlwm rau cov neeg siv khoom hauv 104 lub tebchaws. Nws kuj tau hloov zuj zus los ntawm nws cov hauv paus hauv hluav taws xob thiab hluav taws kev nyab xeeb los daws cov teeb meem kev nyab xeeb ntau dua, xws li cov khoom phom sij, dej tsis huv, zaub mov kev nyab xeeb, kev soj ntsuam kev ua tau zoo, kev nyab xeeb thiab ua raws kev kawm thiab ib puag ncig kev ua neej.

Hauv xyoo 2012, UL pauv los ntawm cov tuam txhab tsis muaj txiaj ntsig los ua kev lag luam rau cov nyiaj tau paj.

UL Cov Qauv

Txuj Ci Kev Nyab Xeeb

• UL 106, Txheem rau Sustainability rau Luminaires (hauv kev tsim)
• UL 110, Txheem rau Kev Ncaj Ncees rau Xov Tooj ntawm Tes

Cov Qauv rau Khoom Siv Hluav Taws Xob thiab Hluav Taws Xob

• UL 153, Cov Teeb Hluav Taws Xob Nruab Nrab
• UL 197, Cov Khoom Siv Hluav Taws Xob Ua Lag Luam
• UL 796, Cov Voj Voj-Cov Hlau Luam
• UL 1026, Hluav Taws Xob Hauv Tsev Neeg Ua Noj thiab Khoom Siv Khoom Noj
• UL 1492, Audio / Video Khoom thiab Accessories
• UL 1598, Luminaires
• UL 1642, Lithium Roj teeb
• UL 1995, Cov Khoom Cua Sov thiab Cua Txias
• UL 6500, Suab / Duab thiab Suab Paj Nruag Cov Kev Siv Rau Cov Tsev Neeg, Kev Lag Luam thiab Cov Khoom Siv Zoo Sib Xws
• UL 60065, Suab, Yees Duab thiab Cov Khoom Siv Hluav Taws Xob Zoo Li No: Yuav Tsum Muaj Kev Nyab Xeeb
• UL 60335-1, Khoom Siv Hauv Tsev thiab Khoom Siv Hluav Taws Xob Zoo Zoo, Tshooj 1: Cov Kev Xav Tau Dav
• UL 60335-2-24, Khoom Siv Hauv Tsev thiab Khoom Siv Hluav Taws Xob Zoo Sib Xws, Tshooj 2: Qhov xav tau tshwj xeeb rau lub tshuab hluav taws xob
• UL 60335-2-3, Khoom Siv Hauv Tsev thiab Khoom Siv Hluav Taws Xob Zoo, Tshooj 2: Qhov tshwj xeeb ntawm Cov Hluav Taws Xob Cov Hluav Taws Xob
• UL 60335-2-34, Khoom Siv Hauv Tsev thiab Khoom Siv Hluav Taws Xob Zoo Sib Xws, Tshooj 2: Qhov xav tau tshwj xeeb rau lub tshuab hluav taws xob
• UL 60335-2-8, Khoom Siv Hauv Tsev thiab Khoom Siv Hluav Taws Xob Zoo Sib Xws, Tshooj 2: Yam tshwj xeeb xav tau rau cov plaub hau, cov plaub hau plaub hau thiab cov khoom siv zoo sib xws
• UL 60950, Cov Ntaub Ntawv Siv Tshuab
• UL 60950-1, Cov Khoom Siv Cov Ntaub Ntawv - Kev Nyab Xeeb, Tshooj 1: Cov Kev Xav Tau
• UL 60950-21, Cov Khoom Siv Cov Ntaub Ntawv - Kev Nyab Xeeb, Tshooj 21: Kev Pub Fais Fab Hluav Taws Xob
• UL 60950-22, Cov Khoom Siv Hluav Taws Xob - Kev Nyab Xeeb, Tshooj 22: Khoom Siv Hluav Taws Xob rau Nruab Nrab Sab Nraud
• UL 60950-23, Cov Ntaub Ntawv Siv Tshuab - Kev Nyab Xeeb, Tshooj 23: Cov Ntaub Ntawv Loj Cia Khoom

Cov Qauv Kev Nyab Xeeb Lub Neej

• UL 217, Ib Leeg- thiab Ntau-Chaw Nres Tsheb pa paib
• UL 268, Cov Ntses Pa Hluav Taws Kub Taws rau Cov Hluav Taws Kub Uas Tiv Thaiv Hluav Taws Xob
• UL 268A, Cov Ntses Pa Pa Rau Ntiav Daim Ntawv Thov
• UL 1626, Kev Tsuag Rau Cov Hluav Taws Xob Rau Chaw Tiv Thaiv Hluav Taws
• UL 1971, Qhov Cuam Tshuam rau Cov Neeg hnov ​​lus tsis zoo

Cov Qauv rau Tsev Khoom

• UL 10A, Tin-Clad Hluav Taws Kub Qhov Rooj
• UL 20, General-Siv Snap Hloov
• UL 486E, Cov Khoom Siv Hluav Taws Xob Hlau Siv rau Kev Siv Hluav Taws Xob nrog Aluminium thiab / lossis Tooj Liab
• UL 1256, Kev Ntsuas Hluav Taws Kub ntawm Ru Tsev / Deck Sau

Cov Qauv Rau Cov Khoom Siv Ua Haujlwm Tswj

• UL 508, Kev Tswj Cov Khoom Siv
• UL 508A, Kev Tswj Kev Lag Luam Panels
• UL 508C, Cov Khoom Siv Hloov Kho Hluav Taws Xob

Cov Qauv Rau Cov Khoom Siv Yas

• UL 94, Kev Ntsuam Xyuas rau Kev Ua Zoo Nruab Nrab ntawm Cov Khoom Siv Yas rau Qhov Chaw hauv Cov Khoom Siv thiab Khoom Siv
• UL 746A, Polymeric Khoom Siv: Kev Ntsuas Cov Khoom Vaj Tsev Qev Ntiag
• UL 746B, Polymeric Khoom Siv: Kev Ntsuas Cov Khoom Ntev Ntev
• UL 746C, Cov Khoom Siv Polymeric: Siv Hauv Kev Tshuaj Ntsuas Cov Khoom Siv Hluav Taws Xob
• UL 746D, Polymeric Khoom siv: Fabricated Qhov
• UL 746E, Cov Khoom Siv Polymeric: Muaj Laminates, Filament Wound Tubing, Vulcanized Fiber thiab Cov Khoom Siv Tau Siv Hauv Cov Hluav Taws Xob Uas Luam Ntawv
• UL 746F, Polymeric Cov Khoom Siv: -– Saj Zawg Zog Dielectric Zaj Duab Xis Siv rau Siv Cov Ntawv Tshawb-Tsim Nyog thiab Cov Ntaub Ntawv Yooj Yim Siv Cov Vev Xaib

Cov Qauv Rau Cov Hlau thiab Cable

• UL 62, Saj Zauv thiab Kab Caws
• UL 758, Khoom Siv Hluav Taws Xob Khoom Siv
• UL 817, Cov hlua khi thiab Teeb Siv Fais Fab
• UL 2556, Txoj Kev Ntsuas Hlau thiab Cable Txoj Kev Kuaj

Cov Qauv rau Canada tsim los ntawm ULC Cov Qauv, ib tug tswv cuab ntawm UL tsev neeg ntawm cov tuam txhab

• CAN / ULC-S101-07, Cov Qauv Txheej Txheem rau Kev Ruaj Ntseg Hluav Taws Kub ntawm Kev Tsim Vaj Tsev thiab Khoom Siv
• CAN / ULC-S102-10, Cov Qauv Kev Ntsuas ntawm Kev Ntsuas Hluav Taws Kub Nta cov txheej txheem ntawm Cov Khoom Siv Tsev Kawm Ntawv thiab Cov Rooj Sib Tham
• CAN / ULC-S102.2-10, Cov Qauv Txuj rau Kev Tshuaj Ntsuam rau Cov Nto-Cov Hluav Taws Xob ntawm Cov Khoom Noj ntawm Cov Flooring, Cov Chav Tsev, thiab lwm yam khoom siv thiab cov khoom sib dhos
• CAN / ULC-S104-10, Cov Qauv Txheej Txheem rau Kev Ntsuam Xyuas Hluav Taws Kub ntawm Cov Khoom Siv Hluav Taws Xob
• CAN / ULC-S107-10, Cov Qauv Txheej Txheem rau Cov Hluav Taws Xob Kev Ntsuam Xyuas ntawm Pob Zeb Npog
• CAN / ULC-S303-M91 (R1999), Cov Txheej Txheem Txoj Haujlwm rau Cov Tub Sab Tswb Tswb Tsaws thiab Cov Tshuab

lwm yam

• UL 1703, Photovoltaic Pav Ca-Phaj Modules
• UL 1741, Hloov Khoom, Hloov Khoom, Hloov Khoom thiab Cuam Tshuam Cov Khoom Siv rau Siv nrog Cov Khoom Siv Hluav Taws Xob
• UL 2703, Khib Mounting Tshuab thiab Clamping Devices rau Flat-Plate Photovoltaic Modules thiab Panels

Paub Qhov Cim Txheej Txheem

Qhov "Cim Txheeb Ze Ua Haujlwm" yog ib hom cim zoo tshaj tawm los ntawm Underwriters Laboratories. Nws tau muab tso rau ntawm cov khoom siv uas tau npaj ua ib feem ntawm UL cov khoom lag luam, tab sis uas tsis tuaj yeem nqa cov UL logo lawv tus kheej. Cov pej xeem sawv daws tsis nquag hla nws, vim tias nws muaj txiaj ntsig ntawm cov khoom siv uas ua cov khoom tiav.

Cov koom haum zoo sib xws

• Baseefa - ib lub koomhaum zoo sib xws hauv tebchaws Askiv
• Lub Koom Haum Canadian Standards (CSA) - cov koomhaum uas sib thooj hauv tebchaws Canada; kuj ua qhov kev xaiv muaj kev sib tw rau cov khoom lag luam Asmeskas
• Efectis - ib lub koom haum zoo sib xws hauv Tebchaws Europe, tus kws tshaj lij hluav taws xob, kev kuaj sim thiab daim ntawv pov thawj lub cev
• ETL SEMKO - ib qho kev xeem sib tw sim, ib feem ntawm Intertek; raws li London, England, UK
• FM Global - lub cev muaj ntaub ntawv pov thawj sib tw, raws hauv Rhode Island, Asmeskas
• IAPMO R&T - cov ntaub ntawv pov thawj sib tw, raws hauv Ontario, California, Asmeskas
• MET Laboratories, Inc. - cov chaw sim sib tw raws li hauv Baltimore, Maryland, Asmeskas
• NTA Inc - lub koomhaum muab ntawv pov thawj sib tw raws li Nappanee, Indiana, Asmeskas
• Sira - ib lub koom haum zoo sib xws rau UK / Europe
• TÜV - koom haum German pom zoo lub koom haum
• KFI - Lub Koom Haum Kauslim Hluav Taws Xob, ib lub koomhaum zoo sib xws hauv Kaus Lim Kauslim
• Kev Tshawb Fawb Kev Siv (LRL) (ARL) - chav kuaj sim sib tw, raws nyob hauv Florida, Asmeskas
• CCOE - Tus Thawj Saib Xyuas Kev Tshawb Fawb