Funda malunga nohlaziyo lwe-UL 1449 Izixhobo zokukhuselwa (i-SPDS), ukongeza iimfuno zovavanyo lweemveliso ezikwimeko ezinomswakama, ikakhulu zisebenzisa iimvavanyo zobushushu kunye nokufuma kakhulu. Funda ukuba yintoni umkhuseli we-tyala, kwaye yiphi indawo emanzi.
I-subgee abakhuseli (izixhobo zokukhuselwa kwezixhobo, i-SPDs) zihlala zithathwa njengonkumbulo obalulekileyo kwizixhobo ze-elektroniki. Banokuthintela amandla aqokelelweyo kunye nokuhla kweguquko lwamandla, ukuze izixhobo ezikhuselweyo aziyi konakaliswa kukungcungcutheka kwamandla ngequbuliso. Umkhuseli woMkhuseli unokuba sisixhobo esipheleleyo eyenziwe ngokuzimeleyo, okanye inokuyilwa njengecandelo kwaye ifakwe kwizixhobo zombane zenkqubo yombane.
Njengoko kuchaziwe apha ngasentla, abakhuseli boMxhasi basetyenziswa ngeendlela ezahlukeneyo, kodwa bahlala bebaluleke kakhulu xa kufikwa kwimisebenzi yokhuseleko. I-UL 1449 iMigangatho yimfuneko esemgangathweni yokuba iingcali zanamhlanje ziyaqhelana xa ufaka isicelo sokufikelela kwimakethi.
Ngokwanda okukhulayo kwezixhobo ze-elektroniki kunye nokusetyenziswa kwayo kumashishini amaninzi, ezinje ngezibane zesitrato ze-LED, oololiwe, u-5g, usetyenziso lwe-ongdomotics, ukusetyenziswa kwemveliso yeshishini kuyanda Ukugcina isantya kunye namaxesha kwaye ugcine uhlaziyiwe.
Inkcazo yendawo enomswakama
Nokuba yi-NFPA 70 yoMbutho weSizwe wokuKhusela umlilo (i-NFPA) okanye ikhowudi yeSizwe yoMbane® (i-NEC), Indawo "ye-SAMP" ichazwe ngokucacileyo ngolu hlobo lulandelayo:
Iindawo ezikhuselweyo kwimozulu kwaye zingabi phantsi kombuso ngamanzi okanye ezinye izinto zotywala kodwa zixhomekeke kumanqanaba omswakama.
Ngokukodwa, iintente, iivaranda ezivulekileyo, kunye neziseko zendawo okanye ii-shores, njl njl.
Xa i-charge therger (enjenge-vardistor) ifakwe kwimveliso yokuphela, kunokubakho ngenxa yokuba imveliso yokuphela ifakiwe okanye isetyenzisiwe kwindalo eguqukayo, kwaye kufuneka ithathelwe ingqalelo ukuba kwindawo enomswakamkileyo, i-surge UMkhuseli ukuba unokuhambelane nemigangatho yokhuseleko kwimeko ngokubanzi.
Iimfuno zokuvavanywa kweMveliso
Imigangatho emininzi ifuna ukuba iimveliso kufuneka zidlulise uthotho lovavanyo lokuthembeka ukuqinisekisa ukusebenza ngexesha lomjikelo wobomi bemveliso, njengamaqondo obushushu aphezulu, ukothusa okuphezulu, ukuhambisa i-vibration kunye nezinto zokuvavanya. Iimvavanyo ezibandakanya iindawo ezinomswakama, iimvavanyo zobushushu ezihlala zisetyenziswa njengovavanyo oluphambili, i-85% ye-85 yobushushu " kwezi ndawo zimbini zeparamitha.
Iqondo lokushisa elihlala lihlala kunye ne-suidity lijolise ekukhawuleziseni ubomi bemveliso ngeendlela zovavanyo. Ingavavanya kakuhle ubuchule bokwaluphala kwemveliso, kubandakanya nokujonga ukuba iMveliso ineempawu zobomi obude kunye nelahleko esezantsi kwindawo ekhethekileyo.
Siqhube uhlolisiso lwemibuzo kwishishini, kwaye iziphumo zibonisa ukuba inani eliqingqiweyo labavelisi be-terminal benza iimfuno zobushushu kunye novavanyo lokuthatyathwa koovimba, kodwa i-UL 1449 emincinci ngelo xesha ayinaso Ngokuhambelana ngoko, umenzi kufuneka enze uvavanyo olongezelelweyo ngokwakho emva kokufumana isatifikethi se-UL 1449; Kwaye ukuba ingxelo yesatifikethi seqela lesithathu iyafuneka, ukunokwenzeka kwenkqubo yokusebenza echazwe ngasentla iya kuncitshiswa. Ngapha koko, xa imveliso ye-terminal isebenza kwisiqinisekiso se-UL, iya kudibana nemeko yengxelo yesatifikethi sezinto ezisetyenziswa ngaphakathi zoxinzelelo ngaphakathi, kwaye kufuneka kuvavanywe uvavanyo olumanzi, kwaye uvavanyo olongezelelweyo luyafuneka.
Siyaziqonda iimfuno zabathengi kwaye sizimisele ukunceda abathengi abazisombulule iintlungu ezihlanganisiweyo ezihlanganyezwayo. I-UL isungule isicwangciso sokuhlaziywa kwesiqhelo se-1449.
Iimfuno zovavanyo ezihambelana nokongezwa kumgangatho
I-UL 1449 emiselweyo isandula ukudibanisa iimfuno zovavanyo lweemveliso kwiimveliso kwiindawo ezinamanzi. Abavelisi banokukhetha ukongeza olu vavanyo lutsha kwityala lovavanyo ngelixa ufaka isicelo se-UL.
Njengoko kuchaziwe apha ngasentla, uvavanyo lwesicelo esimanzi ngokubhekisele kwindalo ikakhulu yamkela iqondo lokushishina kunye novavanyo lokufuma. Oku kulandelayo kuchaze inkqubo yovavanyo yokuqinisekisa ukufaneleka kwe-vardistor (Mov) / ityhubhu yegesi (GDT) yezicelo ezimanzi (
Iisampulu zovavanyo ziya kuqala zithathelwe ingqalelo kuvavanyo olulupheleyo phantsi kobushushu obuphezulu kunye neemeko eziphakamileyo ze-1000, kwaye ke i-vartage ye-vartage ye-varistor ityhubhu iya kuthelekiswa nokuqinisekisa ukuba Ihlala ixesha elide kwindawo enomswakamkileyo, iqhubeka igcina intsebenzo yayo yokhuseleko.
Ixesha lokuposa: ngo-Meyi-09-2023