PCB制板中导线安全距离的确定(UL60950)�������������������������������䰘lj3&%ࠊᵓЁᇐ㒓ᅝܼ䎱⾏ⱘ⹂ᅮNJℸ㸼Ḑᣝᷛ乬᧰㋶໘㔥キ䕀䕑ˈԚߎ໘ϡ䆺ˈԄ䅵Ўݙᷛޚˈϔ㠀Փ⫼ৃখ㗗�˖㑻∵ᶧ˄䆒㉏߿˅�⠀⬉䎱⾏�PP��䆩偠⬉य़�9��Ꮉ⬉य़Ꮉ⬉य़�᳝ᬜؐⳈ⌕9�İ��⬉఼䯈䱭��PP��䆒ݙ�&7,!����ॄࠊᵓϞ�&7,!����ކߏ⬉य़ዄؐ�������XV�����������������������������������������������������������������������������������������������������������������������������������������2.10.6.2SamplepreparationandpreliminaryinspectionThreesampleboards(or,for2.10.9,twocomponentsandoneboard)identifiedassamples1,2and3arerequired.Itispermittedtouseeitheractualboardsorspeciallyproducedsampleswithrepresentativecoatingandminimumseparations.Eachsampleboardshallberepresentativeoftheminimumseparationsused,andcoated.Eachsampleissubjectedtothefullsequenceofmanufacturingprocesses,includingsolderingandcleaning,towhichitisnormallysubjectedduringequipmentassembly.Whenvisuallyinspected,theboardsshallshownoevidenceofpinholesorbubblesinthecoatingorbreakthroughofconductivetracksatcorners.Table2N–MinimumseparationdistancesforcoatedprintedboardsWORKINGVOLTAGEFUNCTIONAL,BASICorSUPPLEMENTARYINSULATIONREINFORCEDINSULATIONVr.m.s.ord.c.mmmmuptoandincluding630,10,2Over63uptoandincluding1250,20,4Over125uptoandincluding1600,30,6Over160uptoandincluding2000,40,8Over200uptoandincluding2500,61,2Over250uptoandincluding3200,81,6Over320uptoandincluding4001,02,0Over400uptoandincluding5001,32,6Over500uptoandincluding6301,83,6Over630uptoandincluding8002,43,8Over800uptoandincluding10002,84,0Over1000uptoandincluding12503,44,2Over1250uptoandincluding16004,14,6Over1600uptoandincluding20005,05,0Over2000uptoandincluding25006,36,3Over2500uptoandincluding32008,28,2Over3200uptoandincluding40001010Over4000uptoandincluding50001313Over5000uptoandincluding63001616Over6300uptoandincluding80002020Over8000uptoandincluding100002626Over10000uptoandincluding125003333Over12500uptoandincluding160004343Over16000uptoandincluding200005555Over20000uptoandincluding250007070Over25000uptoandincluding300008686Forvoltagesbetween2000Vand30000Vlinearinterpolationispermittedbetweenthenearesttwopoints,thecalculatedspacingbeingroundeduptothenexthigher0,1mmincrement.DECEMBER1,2000CAN/CSA-C22.2NO.60950-00♦UL60950112
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