Izindaba

Uma ulwazi lwenani eliphezulu imikhiqizo ye-elekthronikhi enamandla amakhulu esakhiweni, ikhono layo lokumelana nokukhuphuka kombani lincane kakhulu kunelemishini kagesi eyisisekelo, kuyadingeka ukusebenzisasurge umvikeliukugcina imikhiqizo ye-elekthronikhi enembayo ephezulu, bese ukhetha indlela yokuhlinza Kuthiwani ngabavikeli?
Ngaphambi kokukhetha asurge umvikeli, qiniseka ukuthi uqhuba ukuhlolwa kwengozi yesiteleka sombani futhi ucabangele umnotho wephrojekthi, hhayi nje ukulahlekelwa okuqondile, kodwa futhi nokulimala okungaqondile (kuzinhlelo zokuphatha ulwazi, umonakalo ongaqondile ngokuvamile uphakeme kunalokho Ngaphezu kwalokho, imithetho nemithethonqubo efanele namuhla zidinga ukufakwaama-surge protectors, njengamazinga emboni kazwelonke afana ne-GB 50057. Ngezansi, ngizochaza indlela yokukhetha umvikeli ohlinzayo kusukela kumazinga amaningi.

Ukuze kuqinisekiswe kangcono ukuthi amasistimu okuphakelwa kwamandla ayinkimbinkimbi kanye nezinhlelo zolwazi ngeke zilinyazwe ukushaya nombani oqondile kanye nokuqhuma, i-IEC 62305 ichaza ngokucacile incazelo yezindawo zokuvikela umbani.

I-LPZ 0A: Ukuchayeka ekushayweni kombani oqondile, ophethe yonke imisinga yombani nazo zonke izinkambu zikazibuthe zombani.

I-LPZ 0B: Ukuvikelwa ekushayweni kombani oqondile, ukumelana nombani oyingxenye yamanje noma amandla akhona, kanye nombani ogcwele uzibuthe.

I-LPZ 1: Ukuvikeleka ekushayweni kombani oqondile, imisinga yombani wasendaweni noma imisinga, kanye nezinkundla kazibuthe ezincishisiwe.I-surge ikhawulelwe ekuvinjweni emngceleni futhi ivikelwe isivikeli sokuhlinza, futhi inkambu kazibuthe kagesi ivikele ukuncishiswa kwendawo.

I-LPZ 2…n: Ifana ne-LPZ 1, kodwa ngokuncishiswa okwengeziwe kwenkambu kazibuthe kagesi ngokushaywa kombani.Njengomthetho wokuvikela ojwayelekile, into evikelwe kufanele ibekwe endaweni ye-LPZ izakhiwo zayo ze-electromagnetic zihambisana nekhono lokumelana nokulimala ukuze kuncishiswe umonakalo (ukulimala komzimba, ukwehluleka kwezinhlelo zikagesi neze-elekthronikhi ngenxa yokugcwala ngokweqile, njll.

Indlela yokukhetha okuhambisanayosurge umvikeli

Uma kungenakwenzeka ukulinganisa isivikeli sokuhlinza sekilasi 1 (Uhlobo1, Class1), iimp≥12.5kA ngokuvamile isetshenziswa, okusho ukuthi, u-12.5kA wanele ezimeni eziningi.Sincoma ukusebenzisa ii-Iimp=25kA, ukuze kube Ukukhulu komthamo, nempilo yesevisi ende.

Ezivikelini zokuhlinza zesigaba 2 (Uhlobo2, I-Class2), sikhetha ukusebenzisa izivikeli zokuhlinza zamandla ezingu-20/40kA (In=20kA, Imax=40kA), futhi umbani ongaphezu kuka-40kA (ngemuva kwe-LPZ1) akuvamile ukukhiqizwa ezinhlelweni ezithile.kwe.Kunezinhlobo eziningi zezivikeli zokuhlinza ze-Class 2, ezihlanganisa i-40/80kA, 50/100kA, kanye nezivikeli zokuhlinza amandla ezingu-60/120kA.

Hlangana nezidingo zokuphepha ezifundeni ezintathu zokusebenza

1. Isimo sokulinda: izici zokuguga kwamandla kagesi, umswakama nezici zokumelana nokushisa, amandla okuphatha aphephile wesivikeli sokuhlinza esinamachweba amabili;

2. Isimo sokucindezelwa kwe-surge: Ngokungeziwe kumandla we-voltage yokusebenza yesistimu, isivikeli sokuhlinza siphinde sibe namandla avela ku-voltage yokuqhuma;

3. Isimo sokusebenza se-TOV: Ingcindezi kagesi ye-surge umvikeliNgokuyinhloko i-TOV isebenza nge-voltage kanye neyamanje.Lokhu kuhlobene nekhwalithi yegridi, amandla kagesi aphansi kanye nezinhlelo zokusabalalisa, amasistimu okusabalalisa amandla kagesi aphakathi nendawo kanye nezindlela zokumisa phansi zama-transformer okusabalalisa.Okudingayo lokhu yikhono lomvikeli ohlinzayo ukuze amelane nama-overvoltages esikhashana, okungukuthi, umvikeli ohlinzayo angakwazi ukumelana ne-UT eshiwo ezingeni.

Isitifiketi esigunyaziwe ekhaya naphesheya

Ekugcineni, kubalulekile futhi ukukhetha imikhiqizo enesitifiketi esigunyaziwe esivela eceleni (njenge-CE, TUV, CAS, CQC, njll.), nokukhetha izinkampani ezinokuqoqwa kobuchwepheshe, izinzuzo zobuchwepheshe, nezixazululo ezizwakalayo.

Ngokusho kwe-TUV, CE, CQC kanye nezinye izitifiketi zamazwe ngamazwe, umvikeli ohlinzayo unobuchwepheshe obuhle kakhulu bokukhiqiza kanye nobuchwepheshe bokucubungula emkhakheni wokuvikela umbani, futhi angahlangabezana nezidingo zohlelo lokusebenza ngaphansi kwezimo ezimbi kakhulu ezifana nokushisa okuphezulu, izinga lokushisa eliphezulu kanye nezindawo zethafa, futhi ingamelana nomthamo we-harmonic kanye ne-overvoltage isikhathi eside.,Surge protectorskungenziwa ngokwezifiso kumakhasimende ezindaweni ezihlukile.