Juriyar bin diddigin lamintin tagulla yawanci ana bayyana shi ta hanyar kwatanta bin diddigin (CTI).Daga cikin da yawa kaddarorin na jan karfe clad laminates (na jan karfe clad laminates ga takaice), tracking juriya, a matsayin wani muhimmin aminci da aminci index, an ƙara daraja ta. PCB kewaye allon masu zanen kaya da masu kera allon kewayawa.

Ana gwada ƙimar CTI daidai da daidaitaccen tsarin IEC-112 "Hanyar Gwaji don Kwatancen Binciken Kwatancen na Substrates, Buga da Bugawa da Taro da Tarukan Gudanarwa", wanda ke nufin cewa saman ƙasa na iya jure wa 50 saukad da na 0.1% ammonium chloride The mafi girman ƙimar ƙarfin lantarki (V) wanda maganin ruwa mai ruwa ba zai samar da alamar yabo na lantarki ba.Dangane da matakin CTI na kayan rufewa, UL da IEC sun raba su zuwa maki 6 da maki 4 bi da bi.

Duba Tebu 1. CTI≥600 shine mafi girma.Laminates ɗin da aka yi da jan ƙarfe tare da ƙananan ƙimar CTI suna da wuyar sa ido a lokacin da aka yi amfani da su na dogon lokaci a cikin yanayi mai tsanani kamar matsa lamba, zafi mai zafi, zafi, da gurɓatawa.

Gabaɗaya, CTI na talakawa takarda-tushen jan ƙarfe laminates (XPC, FR-1, da dai sauransu) ne ≤150, da kuma CTI na talakawa hadaddun tushen jan karfe clad laminates (CEM-1, CEM-3) da talakawa gilashin fiber. Tufafi-tushen jan karfe clad laminates (FR-4) Ya jeri daga 175 zuwa 225, wanda ba zai iya cika mafi girma aminci bukatun na lantarki da lantarki kayayyakin.

A cikin ma'auni na IEC-950, dangantaka tsakanin CTI na laminate na jan karfe da wutar lantarki na aiki buga allon kewayawa sannan kuma an kayyade mafi ƙarancin tazarar waya (Mafi ƙarancin Creepage Distance).Babban CTI tagulla laminate na jan ƙarfe ba kawai ya dace da ƙazantar ƙazanta ba, Hakanan ya dace sosai don samar da allunan da'irar bugu mai girma don aikace-aikacen wutar lantarki.Idan aka kwatanta da laminates na jan ƙarfe na yau da kullun tare da juriya mai tsayi mai tsayi, tazarar layi na allon da'irar da aka yi tare da na farko ana iya barin ta zama ƙarami.

Bin-sawu: Hanyar sannu-sannu samar da hanyar tafiyarwa akan farfajiyar ƙaƙƙarfan abin rufewa a ƙarƙashin haɗin aikin filin lantarki da na'urar lantarki.

Fihirisar Binciken Kwatancen (CTI): Maɗaukakin ƙimar ƙarfin lantarki wanda saman kayan zai iya jure digo 50 na electrolyte (0.1% ammonium chloride aqueous solution) ba tare da samar da alamar yabo ba, a cikin V.

Indexididdigar Biyan Hujja (PTI): Ƙimar ƙarfin lantarki wanda saman kayan zai iya jure digo 50 na electrolyte ba tare da samar da alamar yabo ba, wanda aka bayyana a cikin V.

CTI gwajin kwatankwacin laminate na jan karfe

Ƙara CTI na kayan takarda yana farawa ne da guduro, kuma yana rage ƙananan kwayoyin halitta waɗanda ke da sauƙin carbonize da sauƙi don lalata su a cikin tsarin kwayoyin guduro.