I-UL 1449 Edition 4—U-downloader mahhala

Izinga Elidingekayo Lokuphepha Lamadivayisi Wokuvikelwa Kokuqubuka

Izinga elisanda kukhishwa le-UL 1449 Standard for Surge Protective Devices for safety and is the standard standard for all AC surge surge devices (SPDs).

Incazelo Esemthethweni

Izidingo ezimboza amadivayisi wokuvikela (SPDs) aklanyelwe ukukhawulelwa okuphindaphindwayo kwama-voltage surges njengoba kucacisiwe kuzinga kumasekethe kagesi angama-50 noma ama-60 Hz angeqi ku-1000 V.

Isebenza Kanjani Imithelela Ejwayelekile Yokuvikela Amadivayisi

  • Izinga le-UL 1449 licacisa izivivinyo ezahlukahlukene okumele ama-OEMs azidlulise ukuze afune ukuthobela
  • Ama-SPD ajwayelekile kumele abe nesitifiketi se-UL 1449 ukuhlangabezana namazinga okuphepha ezimakethe ezithile

I-UL-1449-4th-Edition-Standard-for-Surge-Protection-Devices-pic1

Yiziphi Izinhlobo ze-SPD Ezimboziwe

Uhlobo lwe-SPD

Ukuhlanganisa

Thayipha 1

  • Ama-SPD axhunywe unomphela enzelwe ukufakwa phakathi kwesekeli se-transformer yesevisi nohlangothi lwensimbi yemishini yesevisi

  • Kufakiwe ngaphandle kokusebenzisa idivayisi yangaphandle evikelayo

Thayipha 2

  • Ama-SPD axhunywe unomphela ahloselwe ukufakwa ohlangothini lomthwalo wensiza yokusebenza kwensimbi eyeqile

Thayipha 3

  • Ama-SPD wokukhomba wokusetshenziswa

  • Kufakwe ebangeni eliphansi lomqhubi wamamitha ayi-10 (30 amamitha) kusuka kuphaneli yesevisi kagesi

Thayipha 4

  • Umhlangano wengxenye equkethe into eyodwa noma ngaphezulu yohlobo 5 (imvamisa i-MOV noma i-SASD)

  • Kufanele ithobele izivivinyo ezilinganiselwe zamanje ne-In

  • Akuvivinywa njengamadivayisi azimele ukuthola amaphutha aphakathi naphakeme kakhulu

Thayipha 5

  • Izicindezeli zokuqhaqhaza okungaqondakali njengezakhi zokuqhamuka (MOV noma i-SASD)

  • Kungabekwa kwi-PCB exhunywe ngemikhondo

  • Ingasetshenziswa ngaphakathi kwendawo ebiyelwe ngezindlela ezikhuphukayo kanye nokunqanyulwa kwentambo

  • Ayivivinywa kakhulu, imiphakathi noma amaphutha amakhulu kakhulu

  • Kufanele ifakwe ngaphakathi kwenye indawo ebiyelwe

Ukuhlola kungukhiye

Okubalulekile kuhlu lwe-UL ukuhlolwa okumisiwe. Leli thebula lichaza imithethonqubo yokuhlola yohlobo lwesi-4 nohlobo lwesi-5 lwe-SPD.

Izindlela ZokuhlolaThayipha i-4 SPDThayipha i-5 SPD
I Ukuvuza (kokuqala)KudingwaKudingwa
I-Dielectric Voltage ImelanaKudingwaKudingwa
Vn (Ngaphambi Nangemva Kokungena)KudingwaKudingwa
Ukukhishwa kwe-Nominal Current (In)KudingwaKudingwa
I-Voltage Yokulinganisa Ekhawulelwe (MLV)KudingwaKudingwa
UmnqamulajuquKudingwaAkufaneleki
Okwamanje KunomkhawuloKudingwaAkufaneleki
Ukuqhubeka kokuqhubekaAkuphoqelekileAkuphoqelekile
Iphutha ne-OvercurrentAkuphoqelekileAkuphoqelekile
Resistance ukwahlukanisaAkuphoqelekileAkuphoqelekile
I Ukuvuza (kokuqala)KudingwaKudingwa

Okudingekayo

Ngemuva kokuthola isitifiketi se-UL, umenzi uthatha umthwalo wokuhlangabezana nezindinganiso ngokungathi sína. Onke ama-SPD afaka ukumaka okudingekayo okucacile naphakade ukuze kuqinisekiswe ukuthi izixazululo ozikhethayo zihlangabezana ne-UL 1449.

  • Igama lomkhiqizi
  • Inombolo yekhathalogi
  • Uhlobo lwe-SPD
  • Izilinganiso zikagesi
  • Isilinganiso sokukhishwa kwamanani okuzenzakalelayo (Ku)
  • Isilinganiso sokusebenza kwamandla okuqhubekayo (MCOV)
  • Isilinganiso sokuvikelwa kweVoltage (VPR)
  • Kukalwa amandla kagesi (MLV)
  • Idethi noma isikhathi sokwenziwa
  • Isilinganiso samanje sesifunda esifushane (i-SSCR)

Thayipha imihlangano yento engu-4 nohlobo lwe-5 SPDs idinga i-MLV, i-MCOV, i-voltage yokusebenza, kanye nezilinganiso. Kuma-SPD wohlobo 5 lezi zilinganiso zinganikezwa kumashidi wedatha.

Uhla lwamagama wamagama asemqoka

  • Iphutha lamanje - Okwamanje kusuka kusistimu yamandla egeleza kusifunda esifushane
  • Ubuningi obuqhubekayo bokusebenza kwamandla (MCOV) - Inani eliphakeme lamandla kagesi angasetshenziswa ngokuqhubekayo ku-SPD
  • Kukalwe umkhawulo wamandla kagesi - Ubukhulu obukhulu bamandla kagesi abulinganiswa lapho kusetshenziswa i-In
  • Ukukhishwa kwegama okuzenzakalelayo (Ku) - Inani eliphakeme lamanje (8 x 20 wave shape) eliqhutshwa ngezikhathi ze-SPD 15 (SPD kumele ihlale isebenza)
  • Okuzisholo voltage yokusebenza - Amandla we-AC ajwayelekile wamandla wohlelo
  • Amandla okuzisholo (Vn) - Amandla kagesi e-DC alinganiswa ngaphesheya kwe-SPD lapho kugeleza i-1mA
  • Isilinganiso samanje sesifunda esifushane (i-SCCR) - Ukufaneleka kwe-SPD ukumelana nesekethe emfushane emenyezelwe evela kumthombo wamandla
  • Isilinganiso sokuvikelwa kweVoltage (VPR) - Isilinganiso se-Voltage esikhethwe ohlwini lwamanani athandwayo lapho kusetshenziswa igagasi lenhlanganisela le-6kV 3kA

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I-UL 1449 4th Edition Izinga Elidingekayo Lokuphepha Lamadivayisi Wokuvikelwa Kokwenyuka Papge 1