UL 1449 phau 4-dawb download tau

Cov Txheej Txheem Tsim Nyog Kev Tsim Nyog Rau Cov Khoom Tiv Thaiv Tsis Txaus

Tshiab tshaj tawm UL 1449 Txheem rau Surge Tiv Thaiv Cov Khoom Siv rau kev nyab xeeb thiab yog cov qauv nyiam rau txhua qhov AC tiv thaiv cov cuab yeej (SPDs).

Lus Txhais

Cov kev cai uas npog npog tiv thaiv cov cuab yeej tiv thaiv (SPDs) tsim rau kev rov ua dua ntawm qhov hloov cov xaim hluav taws xob ntxiv raws li tau teev tseg hauv cov qauv ntawm 50 lossis 60 Hz zog hluav taws xob tsis tshaj 1000 V.

Yuav Ua Li Cas Cov Qauv Cuam Tshuam Surge Protection Devices

  • UL 1449 tus qauv hais meej ntau yam kev xeem uas OEMs yuav tsum dhau los ua kom tau raws cai
  • Cov Qauv Qauv SPD yuav tsum muaj ntawv pov thawj UL 1449 kom tau raws li cov qauv kev nyab xeeb rau kev lag luam tshwj xeeb

UL-1449-4th-Tsab-Txuj-rau-Surge-Tiv Thaiv-Devices-pic1

Cas SPD Cov Hom Yuav Tau Them

SPD Hom

Kev Pabcuam

ntaus 1

  • Chaw txuas nrog tas mus li cov SPD uas npaj rau kev teeb tsa nruab nrab ntawm cov theem nrab ntawm cov kev pabcuam hloov pabcuam thiab cov kab ntawv sab ntawm cov khoom pabcuam

  • Nruab tsis siv sab nraud cov khoom tiv thaiv sab nraud

ntaus 2

  • Cob phum txuas mus ib txhis rau npaj rau kev teeb tsa ntawm cov chaw pabcuam ntawm cov khoom siv thauj khoom siv

ntaus 3

  • Point-of-siv SPDs

  • Nruab ntawm qhov tsawg kawg nkaus tus neeg xyuas pib ntev 10 meters (30 ko taw) los ntawm lub rooj tsav xwm hluav taws xob

ntaus 4

  • Cov khoom sib koom ua ke muaj ib lossis ntau hom 5 yam sib txuam (feem ntau yog MOV lossis SASD)

  • Yuav tsum ua raws li cov kev txwv tam sim no tsawg thiab hauv

  • Tsis raug kuaj raws li standalone li rau nruab nrab thiab siab tam sim no qhov txhaum

ntaus 5

  • Kev txhim kho cov khoom tiv thaiv kom zoo ib yam li cov khoom siv phais (MOV lossis SASD)

  • Yuav tsum tau ntsuas ntawm PCB txuas nrog los ntawm kev coj ua

  • Yuav siv tau nyob rau hauv ib qho kev thaiv nrog cov xov xwm txhais tau tias thiab xaim ntawv xaus

  • Tsis ntsuas kev ntsuas qis dhau, nruab nrab lossis siab ua txhaum tam sim no

  • Yuav tsum muaj kev sib cog lus nyob rau lwm qhov ntawm

Kev ntsuas yog qhov yuam sij

Tseem ceeb rau UL cov npe yog kev xeem zoo. Cov lus no qhia cov kev cai ntsuas rau Hom 4 thiab Hom 5 SPD cov koom ua ke sibtham.

Kev Ntsuas Cov QauvHom 4 SPDHom 5 SPD
Kuv Nplooj (pib)Yuav tsum tauYuav tsum tau
Dielectric Voltage NruagYuav tsum tauYuav tsum tau
Vn (Uantej thiab Tomqab)Yuav tsum tauYuav tsum tau
Lub Nom Nta Ntaus Nim No (Hauv)Yuav tsum tauYuav tsum tau
Kev Ntsuas Cov Kev Ntsuas Cov Hluav Taws Xob (MLV)Yuav tsum tauYuav tsum tau
DisconnectorYuav tsum tauTsis siv
Tsawg Tug Tam Sim NoYuav tsum tauTsis siv
Grounding txuas ntxivyeemyeem
Kev txhaum thiab kev dhauyeemyeem
Rwb thaiv tsev Kujyeemyeem
Kuv Nplooj (pib)Yuav tsum tauYuav tsum tau

Yuav tsum muaj Npav

Tom qab Tau Txais UL ntawv pov thawj, cov chaw tsim khoom lag luam ua lub luag haujlwm kom ua tau raws cov qauv kev ntseeg siab. Txhua ntawm SPDs suav nrog qhov cim kom cim meej thiab tas mus li kom ntseeg tau cov kev daws teeb meem koj xaiv ntsib UL 1449.

  • Lub npe chaw tsim khoom
  • Catalog tus naj npawb
  • SPD Hom
  • Kev ntsuas hluav taws xob
  • Nominal tawm tam sim no (Hauv) kev ntsuas
  • Qhov ntsuas siab tshaj plaws tsis tu ncua kev khiav hauj lwm (MCOV)
  • Qhov ntsuas hluav taws xob tiv thaiv (VPR)
  • Ntsuas limiting voltage (MLV)
  • Hnub lossis lub sijhawm ua khoom siv
  • Luv luv ntsuas tam sim no (SSCR)

Hom 4 cov khoom sib xyaw ua ke thiab Hom 5 SPD uas yuav tsum muaj MLV, MCOV, siv hluav taws xob ua haujlwm, thiab Hauv kev ntaus nqi. Rau Hom 5 SPDs cov kev ntaus nqi no yuav muab rau hauv cov ntawv txheeb.

Txhais Cov Ntsiab Lus Cov Ntsiab Lus Tseem Ceeb

  • Txhaum tam sim no - Tam sim no los ntawm lub zog hluav taws xob uas ntws hauv qhov luv luv
  • Siab tshaj plaws kev khiav hauj lwm voltage (MCOV) - Qhov siab tshaj plaws qhov ntsuas hluav taws xob uas tuaj yeem siv txuas ntxiv mus rau SPD
  • Ntsuas limiting voltage - Qhov siab tshaj plaws ntawm qhov ntsuas hluav taws xob thaum ntsuas Qhov Ntsuas
  • Nominal paug tam sim no (Hauv) - Peak tus nqi ntawm qhov tam sim no (8 x 20 yoj lub cev) tsav los ntawm SPD 15 zaug (SPD yuav tsum nyob twj ywm ua haujlwm)
  • Nominal ua haujlwm voltage - Li qub AC fais fab voltage ntawm lub system
  • Kwvhuam voltage (Vn) - DC voltage ntsuas thoob SPD thaum 1mA ntws
  • Luv luv ntsuas tam sim no (SCCR) - Muaj qhov txaus ntawm SPD kom tiv thaiv txoj haujlwm luv luv los ntawm lub zog hluav taws xob
  • Qhov ntsuas hluav taws xob tiv thaiv (VPR) - Kev ntsuas qhov ntsuas hluav taws xob tau xaiv los ntawm cov npe ntawm cov txiaj ntsig nyiam thaum sib txuam yoj ntawm 6kV 3kA

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UL 1449 Thib Tawm Thib 4 Uas Yuav Tsum Tau Txais Kev Nyab Xeeb Tus Txheej Txheem Rau Cov Khoom Tiv Thaiv Surge Papge 1