Asali: Hasken Na'urori
Babban aikin inductance a cikin da'irori shine tacewa, musamman don sarrafa sigina. Me yasa akwai buƙatun nesa na aminci yayin yin takaddun shaida? Wannan labarin zai samar da amsoshi masu dacewa ga wannan tambayar.
A gaskiya ma, ga da'irori na gabaɗaya, babu wata takamaiman buƙatu don nisan aminci na inductors. Suna buƙatar biyan buƙatun rufin wutar lantarki na asali kawai, kuma samfurin ba zai yi aiki na dogon lokaci ba.
Lokacin gwada inductors, sau da yawa muna gwada juriyar ƙarfin lantarki na windings zuwa windings ko windings zuwa magnetic cores, yawanci kusan 500VAC.
Duk da haka, idan aka yi amfani da inductor a cikin yanayin da'irar wutar lantarki mai ƙarfi, zai bambanta. A cikin da'irar wutar lantarki mai ƙarfi, tazara tsakanin fil ɗin inductor sau da yawa yana buƙatar bin ƙa'idodin share wutar lantarki da nisan rarrafe don guje wa gajerun da'irori ko fitarwa.
A bisa ga ƙa'idar IEC60950, matakan ƙarfin lantarki daban-daban sun yi daidai da mafi ƙarancin nisa daban-daban. Idan ba a saka da'irar ƙarfin lantarki na 400V a cikin rami ba, gibin wutar lantarki tsakanin fil ɗin inductor dole ne ya zama ≥ 6.4mm.
Dangane da nisan da ke rarrafe, ga da'irori 220V, nisan da ke rarrafe na substrate na FR4 yana buƙatar ya zama ≥ 4.0mm. Ga inductor masu ƙarfin lantarki mai yawa, kamar waɗanda ke kusa da babban transformer na wutar lantarki mai sauyawa, ana buƙatar ƙarin nisan da ke rufewa na ≥ 8.0mm.
Idan zafin aiki na inductor ya yi yawa, ana iya ƙara nisan tsaro yadda ya kamata don rama tsufan kayan rufi da aka samu sakamakon amfani da inductor na dogon lokaci.
A tsarin tsara da'ira, idan nisan da ke rarrafe bai isa ba, ana iya amfani da slotting don biyan buƙatun. Don zaɓar kayan inductor, ya zama dole a yi amfani da kwarangwal mai jure wuta da hana wuta, waya mai jure zafi mai yawa, da tef ɗin kariya mai takardar shedar aminci don tabbatar da bin ƙa'idodi da buƙatu na aminci.
Gabaɗaya, buƙatar nesa ta aminci ga inductors shine a hana haɗarin aminci da lalacewar lantarki, zubewa, da gazawar rufin gida ke haifarwa. Wannan na iya komawa ga ƙa'idodi kamar IEC 60950 da UL 60950, kuma an tsara su gaba ɗaya bisa ga matakan ƙarfin lantarki, yanayin aiki, da halayen kayan aiki don tabbatar da cewa gwaji da takaddun shaida sun wuce.
Lokacin Saƙo: Maris-25-2025
