每500伏特的安全距離為1MM左右呢?
平常打高壓,是否可以這么理解,每500伏特的安全距離為1MM左右呢?初級對地爬電距離3MM,空間距離1.5MM呢?是否正確。
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@wuzhonggui
一、安全間距1. LN之間3mm以上,空間距離1.8mm以上,不足時(shí)開1mm以上的槽增加沿面距離。2.初次級間6.4mm以上,空間距離5mm以上,不足時(shí)開1mm以上的槽增加沿面距離。3.初級與外殼地4.5mm以上,空間距離3mm以上,不足時(shí)開1mm以上的槽增加沿面距離。4.高壓與地之間銅箔距離1mm以上,其它無要求銅箔間距離0.5mm以上。
這是IEC-60950的空間和爬電距離要求: 附表2J – AC交流電源瞬間電壓(摘錄標(biāo)準(zhǔn)表2J) |
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AC main supply voltage up to and including a | Mains transient voltage Vpeak b | |||||||||||||||
Overvoltage category | ||||||||||||||||
Vr.m.s | I | II | ||||||||||||||
50 | 330 | 550 | ||||||||||||||
100 | 500 | 800 | ||||||||||||||
150 c | 800 | 1500 | ||||||||||||||
300 d | 1500 | 2500 | ||||||||||||||
600 e | 2500 | 4000 | ||||||||||||||
a For equipment designed to be connected to a three-phase, three-wire supply, where there is no neutral conductor, the AC MAINS SUPPLY voltage is the line-to-line voltage. In all other cases, where there is a neutral conductor, it is the line-to-neutral voltage. | ||||||||||||||||
b The MAINS TRANSIENT VOLTAGE is always one of the values in the table. Interpolation is not permitted. | ||||||||||||||||
c Including 120/208 V and 120/240 V. | ||||||||||||||||
d Including 230/400 V and 277/480 V. | ||||||||||||||||
e Including 400/690 V. | ||||||||||||||||
In general,CLEARANCES in equipment intended to be connected to the AC MAINS SUPPLY shall be designed for Overvoltage Category II. | ||||||||||||||||
如果所測的工作電壓峰值超過下表規(guī)格時(shí),上述空間距離的值需增加下表所列的對應(yīng)值 | ||||||||||||||||
附表2K – 一次電路以及一次電路與二次電路之間的最小電氣絕緣(摘錄標(biāo)準(zhǔn)表2K) | ||||||||||||||||
Unit:mm | ||||||||||||||||
Peaking working voltage up to and including, V |
Mains transient voltage | |||||||||||||||
1500 | 2500 | 4000 | ||||||||||||||
Pollution degree | ||||||||||||||||
1 and 2 | 3 | 1 and 2 | 3 | 1, 2 and 3 | ||||||||||||
F | B/S | R | F | B/S | R | F | B/S | R | F | B/S | R | F | B/S | R | ||
71 | 0.4 | 1 | 2 | 0.8 | 1.3 | 2.6 | 1 | 2 | 4 | 1.3 | 2 | 4 | 2 | 3.2 | 6.4 | |
210 | 0.5 | 1 | 2 | 0.8 | 1.3 | 2.6 | 1.4 | 2 | 4 | 1.5 | 2 | 4 | 2 | 3.2 | 6.4 | |
420 | F 1.5 B/S 2.0 R 4.0 | 2.5 | 3.2 | 6.4 | ||||||||||||
840 | F 3.0 B/S 3.2 R 6.4 | |||||||||||||||
The values in the table are applicable to FUNCTIONAL INSULATION (F) if required by 5.3.4 a) (see 2.10.1.3), BASIC INSULATION (B), SUPPLEMENTARY INSULATION (S) and REINFORCED INSULATION (R). |
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If the peak working voltages exceeds the peak voltage of the AC main supply voltage, linear interpolation is permitted between the nearest two points, the calculated minimum clearance being rounded up to the next higher 0.1 mm increment. | ||||||||||||||||
附表2L– 次電路中的附加間隙(摘錄標(biāo)準(zhǔn)表2L) | ||||||||||||||||
Unit:mm | ||||||||||||||||
Mains transient voltage | ||||||||||||||||
1500V | 2500V | |||||||||||||||
Pollution degree 1 and 2 | Pollution 3 | Functional basic or supplementary insulation | Reinforced insulation | Pollution degree 1, 2 and 3 | Functional basic or supplementary insulation | Reinforced insulation | ||||||||||
Peak working voltage up to and including, V |
Peak working voltage up to and including V | |||||||||||||||
210 | 210 | 0 | 0 | 420 | 0 | 0 | ||||||||||
298 | 294 | 0.1 | 0.2 | 493 | 0.1 | 0.2 | ||||||||||
386 | 379 | 0.2 | 0.4 | 567 | 0.2 | 0.4 | ||||||||||
474 | 463 | 0.3 | 0.6 | 640 | 0.3 | 0.6 | ||||||||||
562 | 547 | 0.4 | 0.8 | 713 | 0.4 | 0.8 | ||||||||||
For voltages above the peak working voltage values given in the table, liner extrapolation is permitted. | ||||||||||||||||
附表2N – 最小爬電距離(摘錄標(biāo)準(zhǔn)表2N) | ||||||||||||||||
Unit:mm | ||||||||||||||||
RMS working voltage up to and including , V |
Pollution degree | |||||||||||||||
1 | 2 | 1 | 2 | 3 | ||||||||||||
Material group | ||||||||||||||||
Printed boards | Other materials | |||||||||||||||
I, II, IIIa, IIIb | I, II, IIIa | I, II, IIIa, IIIb | I | II | IIIa, IIIb | I | II | IIIa, IIIb | ||||||||
10 | 0.025 | 0.04 | 0.08 | 0.4 | 0.4 | 0.4 | 1 | 1 | 1 | |||||||
12.5 | 0.025 | 0.04 | 0.09 | 0.42 | 0.42 | 0.42 | 1.05 | 1.05 | 1.05 | |||||||
16 | 0.025 | 0.04 | 0.1 | 0.45 | 0.45 | 0.45 | 1.1 | 1.1 | 1.1 | |||||||
20 | 0.025 | 0.04 | 0.11 | 0.48 | 0.48 | 0.48 | 1.2 | 1.2 | 1.2 | |||||||
25 | 0.025 | 0.04 | 0.125 | 0.5 | 0.5 | 0.5 | 1.25 | 1.25 | 1.25 | |||||||
32 | 0.025 | 0.04 | 0.14 | 0.53 | 0.53 | 0.53 | 1.3 | 1.3 | 1.3 | |||||||
40 | 0.025 | 0.04 | 0.16 | 0.56 | 0.8 | 1.1 | 1.4 | 1.6 | 1.8 | |||||||
50 | 0.025 | 0.04 | 0.18 | 0.6 | 0.85 | 1.2 | 1.5 | 1.7 | 1.9 | |||||||
63 | 0.04 | 0.063 | 0.2 | 0.63 | 0.9 | 1.25 | 1.6 | 1.8 | 2 | |||||||
80 | 0.063 | 0.1 | 0.22 | 0.67 | 0.9 | 1.3 | 1.7 | 1.9 | 2.1 | |||||||
100 | 0.1 | 0.16 | 0.25 | 0.71 | 1 | 1.4 | 1.8 | 2 | 2.2 | |||||||
125 | 0.16 | 0.25 | 0.28 | 0.75 | 1.05 | 1.5 | 1.9 | 2.1 | 2.4 | |||||||
160 | 0.25 | 0.4 | 0.32 | 0.8 | 1.1 | 1.6 | 2 | 2.2 | 2.5 | |||||||
200 | 0.4 | 0.63 | 0.42 | 1 | 1.4 | 2 | 2.5 | 2.8 | 3.2 | |||||||
250 | 0.56 | 1 | 0.56 | 1.25 | 1.8 | 2.5 | 3.2 | 3.6 | 4 | |||||||
320 | 0.75 | 1.6 | 0.75 | 1.6 | 2.2 | 3.2 | 4 | 4.5 | 5 | |||||||
400 | 1 | 2 | 1 | 2 | 2.8 | 4 | 5 | 5.6 | 6.3 | |||||||
500 | 1.3 | 2.5 | 1.3 | 2.5 | 3.6 | 5 | 6.3 | 7.1 | 8 | |||||||
Linear interpolation is permitted between the nearest two points, the calculated spacing being rounded to the next higher 0.1 mm increment. For reinforced insulation, the calculated value for basic insulation shall be doubled first before applying the rounding off. | ||||||||||||||||
我司產(chǎn)品一般使用“污染等級2,材料組別:IIIa或IIIb” | ||||||||||||||||
如果從表2N查得的爬電距離小于從表2K或2L或表2M(適用時(shí))查的相應(yīng)的電氣間隙,則應(yīng)采用所查得的該電氣間隙值作為最小爬電距離的數(shù)值 | ||||||||||||||||
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@wuzhonggui
這是IEC-60950的空間和爬電距離要求:附表2J–AC交流電源瞬間電壓(摘錄標(biāo)準(zhǔn)表2J)ACmainsupplyvoltageuptoandincludingaMainstransientvoltageVpeakbOvervoltagecategoryVr.m.sIII50330550100500800150c8001500300d15002500600e25004000a Forequipmentdesignedtobeconnectedtoathree-phase,three-wiresupply,wherethereisnoneutralconductor,theACMAINSSUPPLYvoltageistheline-to-linevoltage.Inallothercases,wherethereisaneutralconductor,itistheline-to-neutralvoltage.b TheMAINSTRANSIENTVOLTAGEisalwaysoneofthevaluesinthetable.Interpolationisnotpermitted.c Including120/208Vand120/240V.d Including230/400Vand277/480V.e Including400/690V.Ingeneral,CLEARANCESinequipmentintendedtobeconnectedtotheACMAINSSUPPLYshallbedesignedforOvervoltageCategoryII.如果所測的工作電壓峰值超過下表規(guī)格時(shí),上述空間距離的值需增加下表所列的對應(yīng)值附表2K–一次電路以及一次電路與二次電路之間的最小電氣絕緣(摘錄標(biāo)準(zhǔn)表2K) Unit:mmPeakingworkingvoltage uptoandincluding,VMainstransientvoltage150025004000Pollutiondegree1and231and231,2and3FB/SRFB/SRFB/SRFB/SRFB/SR710.4120.81.32.61241.32423.26.42100.5120.81.32.61.4241.52423.26.4420F1.5 B/S2.0 R4.02.53.26.4840F3.0 B/S3.2 R6.4 ThevaluesinthetableareapplicabletoFUNCTIONALINSULATION(F)ifrequiredby5.3.4a)(see2.10.1.3),BASICINSULATION(B),SUPPLEMENTARYINSULATION(S)andREINFORCEDINSULATION(R).IfthepeakworkingvoltagesexceedsthepeakvoltageoftheACmainsupplyvoltage,linearinterpolationispermittedbetweenthenearesttwopoints,thecalculatedminimumclearancebeingroundeduptothenexthigher0.1mmincrement.附表2L–次電路中的附加間隙(摘錄標(biāo)準(zhǔn)表2L) Unit:mmMainstransientvoltage1500V2500VPollutiondegree1and2Pollution3FunctionalbasicorsupplementaryinsulationReinforcedinsulationPollutiondegree1,2and3FunctionalbasicorsupplementaryinsulationReinforcedinsulationPeakworkingvoltageuptoandincluding, VPeakworkingvoltageuptoandincludingV21021000420002982940.10.24930.10.23863790.20.45670.20.44744630.30.66400.30.65625470.40.87130.40.8Forvoltagesabovethepeakworkingvoltagevaluesgiveninthetable,linerextrapolationispermitted.附表2N–最小爬電距離(摘錄標(biāo)準(zhǔn)表2N) Unit:mmRMSworkingvoltageuptoandincluding,VPollutiondegree12123MaterialgroupPrintedboardsOthermaterialsI,II,IIIa,IIIbI,II,IIIaI,II,IIIa,IIIbIIIIIIa,IIIbIIIIIIa,IIIb100.0250.040.080.40.40.411112.50.0250.040.090.420.420.421.051.051.05160.0250.040.10.450.450.451.11.11.1200.0250.040.110.480.480.481.21.21.2250.0250.040.1250.50.50.51.251.251.25320.0250.040.140.530.530.531.31.31.3400.0250.040.160.560.81.11.41.61.8500.0250.040.180.60.851.21.51.71.9630.040.0630.20.630.91.251.61.82800.0630.10.220.670.91.31.71.92.11000.10.160.250.7111.41.822.21250.160.250.280.751.051.51.92.12.41600.250.40.320.81.11.622.22.52000.40.630.4211.422.52.83.22500.5610.561.251.82.53.23.643200.751.60.751.62.23.244.5540012122.8455.66.35001.32.51.32.53.656.37.18Linearinterpolationispermittedbetweenthenearesttwopoints,thecalculatedspacingbeingroundedtothenexthigher0.1mmincrement.Forreinforcedinsulation,thecalculatedvalueforbasicinsulationshallbedoubledfirstbeforeapplyingtheroundingoff.我司產(chǎn)品一般使用“污染等級2,材料組別:IIIa或IIIb”如果從表2N查得的爬電距離小于從表2K或2L或表2M(適用時(shí))查的相應(yīng)的電氣間隙,則應(yīng)采用所查得的該電氣間隙值作為最小爬電距離的數(shù)值
IEC-60950的空間和爬電距離要求,資料很詳細(xì),收了謝謝
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@wuzhonggui
這是IEC-60950的空間和爬電距離要求:附表2J–AC交流電源瞬間電壓(摘錄標(biāo)準(zhǔn)表2J)ACmainsupplyvoltageuptoandincludingaMainstransientvoltageVpeakbOvervoltagecategoryVr.m.sIII50330550100500800150c8001500300d15002500600e25004000a Forequipmentdesignedtobeconnectedtoathree-phase,three-wiresupply,wherethereisnoneutralconductor,theACMAINSSUPPLYvoltageistheline-to-linevoltage.Inallothercases,wherethereisaneutralconductor,itistheline-to-neutralvoltage.b TheMAINSTRANSIENTVOLTAGEisalwaysoneofthevaluesinthetable.Interpolationisnotpermitted.c Including120/208Vand120/240V.d Including230/400Vand277/480V.e Including400/690V.Ingeneral,CLEARANCESinequipmentintendedtobeconnectedtotheACMAINSSUPPLYshallbedesignedforOvervoltageCategoryII.如果所測的工作電壓峰值超過下表規(guī)格時(shí),上述空間距離的值需增加下表所列的對應(yīng)值附表2K–一次電路以及一次電路與二次電路之間的最小電氣絕緣(摘錄標(biāo)準(zhǔn)表2K) Unit:mmPeakingworkingvoltage uptoandincluding,VMainstransientvoltage150025004000Pollutiondegree1and231and231,2and3FB/SRFB/SRFB/SRFB/SRFB/SR710.4120.81.32.61241.32423.26.42100.5120.81.32.61.4241.52423.26.4420F1.5 B/S2.0 R4.02.53.26.4840F3.0 B/S3.2 R6.4 ThevaluesinthetableareapplicabletoFUNCTIONALINSULATION(F)ifrequiredby5.3.4a)(see2.10.1.3),BASICINSULATION(B),SUPPLEMENTARYINSULATION(S)andREINFORCEDINSULATION(R).IfthepeakworkingvoltagesexceedsthepeakvoltageoftheACmainsupplyvoltage,linearinterpolationispermittedbetweenthenearesttwopoints,thecalculatedminimumclearancebeingroundeduptothenexthigher0.1mmincrement.附表2L–次電路中的附加間隙(摘錄標(biāo)準(zhǔn)表2L) Unit:mmMainstransientvoltage1500V2500VPollutiondegree1and2Pollution3FunctionalbasicorsupplementaryinsulationReinforcedinsulationPollutiondegree1,2and3FunctionalbasicorsupplementaryinsulationReinforcedinsulationPeakworkingvoltageuptoandincluding, VPeakworkingvoltageuptoandincludingV21021000420002982940.10.24930.10.23863790.20.45670.20.44744630.30.66400.30.65625470.40.87130.40.8Forvoltagesabovethepeakworkingvoltagevaluesgiveninthetable,linerextrapolationispermitted.附表2N–最小爬電距離(摘錄標(biāo)準(zhǔn)表2N) Unit:mmRMSworkingvoltageuptoandincluding,VPollutiondegree12123MaterialgroupPrintedboardsOthermaterialsI,II,IIIa,IIIbI,II,IIIaI,II,IIIa,IIIbIIIIIIa,IIIbIIIIIIa,IIIb100.0250.040.080.40.40.411112.50.0250.040.090.420.420.421.051.051.05160.0250.040.10.450.450.451.11.11.1200.0250.040.110.480.480.481.21.21.2250.0250.040.1250.50.50.51.251.251.25320.0250.040.140.530.530.531.31.31.3400.0250.040.160.560.81.11.41.61.8500.0250.040.180.60.851.21.51.71.9630.040.0630.20.630.91.251.61.82800.0630.10.220.670.91.31.71.92.11000.10.160.250.7111.41.822.21250.160.250.280.751.051.51.92.12.41600.250.40.320.81.11.622.22.52000.40.630.4211.422.52.83.22500.5610.561.251.82.53.23.643200.751.60.751.62.23.244.5540012122.8455.66.35001.32.51.32.53.656.37.18Linearinterpolationispermittedbetweenthenearesttwopoints,thecalculatedspacingbeingroundedtothenexthigher0.1mmincrement.Forreinforcedinsulation,thecalculatedvalueforbasicinsulationshallbedoubledfirstbeforeapplyingtheroundingoff.我司產(chǎn)品一般使用“污染等級2,材料組別:IIIa或IIIb”如果從表2N查得的爬電距離小于從表2K或2L或表2M(適用時(shí))查的相應(yīng)的電氣間隙,則應(yīng)采用所查得的該電氣間隙值作為最小爬電距離的數(shù)值
專業(yè)....手下了
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@wuzhonggui
這是IEC-60950的空間和爬電距離要求:附表2J–AC交流電源瞬間電壓(摘錄標(biāo)準(zhǔn)表2J)ACmainsupplyvoltageuptoandincludingaMainstransientvoltageVpeakbOvervoltagecategoryVr.m.sIII50330550100500800150c8001500300d15002500600e25004000a Forequipmentdesignedtobeconnectedtoathree-phase,three-wiresupply,wherethereisnoneutralconductor,theACMAINSSUPPLYvoltageistheline-to-linevoltage.Inallothercases,wherethereisaneutralconductor,itistheline-to-neutralvoltage.b TheMAINSTRANSIENTVOLTAGEisalwaysoneofthevaluesinthetable.Interpolationisnotpermitted.c Including120/208Vand120/240V.d Including230/400Vand277/480V.e Including400/690V.Ingeneral,CLEARANCESinequipmentintendedtobeconnectedtotheACMAINSSUPPLYshallbedesignedforOvervoltageCategoryII.如果所測的工作電壓峰值超過下表規(guī)格時(shí),上述空間距離的值需增加下表所列的對應(yīng)值附表2K–一次電路以及一次電路與二次電路之間的最小電氣絕緣(摘錄標(biāo)準(zhǔn)表2K) Unit:mmPeakingworkingvoltage uptoandincluding,VMainstransientvoltage150025004000Pollutiondegree1and231and231,2and3FB/SRFB/SRFB/SRFB/SRFB/SR710.4120.81.32.61241.32423.26.42100.5120.81.32.61.4241.52423.26.4420F1.5 B/S2.0 R4.02.53.26.4840F3.0 B/S3.2 R6.4 ThevaluesinthetableareapplicabletoFUNCTIONALINSULATION(F)ifrequiredby5.3.4a)(see2.10.1.3),BASICINSULATION(B),SUPPLEMENTARYINSULATION(S)andREINFORCEDINSULATION(R).IfthepeakworkingvoltagesexceedsthepeakvoltageoftheACmainsupplyvoltage,linearinterpolationispermittedbetweenthenearesttwopoints,thecalculatedminimumclearancebeingroundeduptothenexthigher0.1mmincrement.附表2L–次電路中的附加間隙(摘錄標(biāo)準(zhǔn)表2L) Unit:mmMainstransientvoltage1500V2500VPollutiondegree1and2Pollution3FunctionalbasicorsupplementaryinsulationReinforcedinsulationPollutiondegree1,2and3FunctionalbasicorsupplementaryinsulationReinforcedinsulationPeakworkingvoltageuptoandincluding, VPeakworkingvoltageuptoandincludingV21021000420002982940.10.24930.10.23863790.20.45670.20.44744630.30.66400.30.65625470.40.87130.40.8Forvoltagesabovethepeakworkingvoltagevaluesgiveninthetable,linerextrapolationispermitted.附表2N–最小爬電距離(摘錄標(biāo)準(zhǔn)表2N) Unit:mmRMSworkingvoltageuptoandincluding,VPollutiondegree12123MaterialgroupPrintedboardsOthermaterialsI,II,IIIa,IIIbI,II,IIIaI,II,IIIa,IIIbIIIIIIa,IIIbIIIIIIa,IIIb100.0250.040.080.40.40.411112.50.0250.040.090.420.420.421.051.051.05160.0250.040.10.450.450.451.11.11.1200.0250.040.110.480.480.481.21.21.2250.0250.040.1250.50.50.51.251.251.25320.0250.040.140.530.530.531.31.31.3400.0250.040.160.560.81.11.41.61.8500.0250.040.180.60.851.21.51.71.9630.040.0630.20.630.91.251.61.82800.0630.10.220.670.91.31.71.92.11000.10.160.250.7111.41.822.21250.160.250.280.751.051.51.92.12.41600.250.40.320.81.11.622.22.52000.40.630.4211.422.52.83.22500.5610.561.251.82.53.23.643200.751.60.751.62.23.244.5540012122.8455.66.35001.32.51.32.53.656.37.18Linearinterpolationispermittedbetweenthenearesttwopoints,thecalculatedspacingbeingroundedtothenexthigher0.1mmincrement.Forreinforcedinsulation,thecalculatedvalueforbasicinsulationshallbedoubledfirstbeforeapplyingtheroundingoff.我司產(chǎn)品一般使用“污染等級2,材料組別:IIIa或IIIb”如果從表2N查得的爬電距離小于從表2K或2L或表2M(適用時(shí))查的相應(yīng)的電氣間隙,則應(yīng)采用所查得的該電氣間隙值作為最小爬電距離的數(shù)值
我們就是按照這張表來的
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@wuzhonggui
這是IEC-60950的空間和爬電距離要求:附表2J–AC交流電源瞬間電壓(摘錄標(biāo)準(zhǔn)表2J)ACmainsupplyvoltageuptoandincludingaMainstransientvoltageVpeakbOvervoltagecategoryVr.m.sIII50330550100500800150c8001500300d15002500600e25004000a Forequipmentdesignedtobeconnectedtoathree-phase,three-wiresupply,wherethereisnoneutralconductor,theACMAINSSUPPLYvoltageistheline-to-linevoltage.Inallothercases,wherethereisaneutralconductor,itistheline-to-neutralvoltage.b TheMAINSTRANSIENTVOLTAGEisalwaysoneofthevaluesinthetable.Interpolationisnotpermitted.c Including120/208Vand120/240V.d Including230/400Vand277/480V.e Including400/690V.Ingeneral,CLEARANCESinequipmentintendedtobeconnectedtotheACMAINSSUPPLYshallbedesignedforOvervoltageCategoryII.如果所測的工作電壓峰值超過下表規(guī)格時(shí),上述空間距離的值需增加下表所列的對應(yīng)值附表2K–一次電路以及一次電路與二次電路之間的最小電氣絕緣(摘錄標(biāo)準(zhǔn)表2K) Unit:mmPeakingworkingvoltage uptoandincluding,VMainstransientvoltage150025004000Pollutiondegree1and231and231,2and3FB/SRFB/SRFB/SRFB/SRFB/SR710.4120.81.32.61241.32423.26.42100.5120.81.32.61.4241.52423.26.4420F1.5 B/S2.0 R4.02.53.26.4840F3.0 B/S3.2 R6.4 ThevaluesinthetableareapplicabletoFUNCTIONALINSULATION(F)ifrequiredby5.3.4a)(see2.10.1.3),BASICINSULATION(B),SUPPLEMENTARYINSULATION(S)andREINFORCEDINSULATION(R).IfthepeakworkingvoltagesexceedsthepeakvoltageoftheACmainsupplyvoltage,linearinterpolationispermittedbetweenthenearesttwopoints,thecalculatedminimumclearancebeingroundeduptothenexthigher0.1mmincrement.附表2L–次電路中的附加間隙(摘錄標(biāo)準(zhǔn)表2L) Unit:mmMainstransientvoltage1500V2500VPollutiondegree1and2Pollution3FunctionalbasicorsupplementaryinsulationReinforcedinsulationPollutiondegree1,2and3FunctionalbasicorsupplementaryinsulationReinforcedinsulationPeakworkingvoltageuptoandincluding, VPeakworkingvoltageuptoandincludingV21021000420002982940.10.24930.10.23863790.20.45670.20.44744630.30.66400.30.65625470.40.87130.40.8Forvoltagesabovethepeakworkingvoltagevaluesgiveninthetable,linerextrapolationispermitted.附表2N–最小爬電距離(摘錄標(biāo)準(zhǔn)表2N) Unit:mmRMSworkingvoltageuptoandincluding,VPollutiondegree12123MaterialgroupPrintedboardsOthermaterialsI,II,IIIa,IIIbI,II,IIIaI,II,IIIa,IIIbIIIIIIa,IIIbIIIIIIa,IIIb100.0250.040.080.40.40.411112.50.0250.040.090.420.420.421.051.051.05160.0250.040.10.450.450.451.11.11.1200.0250.040.110.480.480.481.21.21.2250.0250.040.1250.50.50.51.251.251.25320.0250.040.140.530.530.531.31.31.3400.0250.040.160.560.81.11.41.61.8500.0250.040.180.60.851.21.51.71.9630.040.0630.20.630.91.251.61.82800.0630.10.220.670.91.31.71.92.11000.10.160.250.7111.41.822.21250.160.250.280.751.051.51.92.12.41600.250.40.320.81.11.622.22.52000.40.630.4211.422.52.83.22500.5610.561.251.82.53.23.643200.751.60.751.62.23.244.5540012122.8455.66.35001.32.51.32.53.656.37.18Linearinterpolationispermittedbetweenthenearesttwopoints,thecalculatedspacingbeingroundedtothenexthigher0.1mmincrement.Forreinforcedinsulation,thecalculatedvalueforbasicinsulationshallbedoubledfirstbeforeapplyingtheroundingoff.我司產(chǎn)品一般使用“污染等級2,材料組別:IIIa或IIIb”如果從表2N查得的爬電距離小于從表2K或2L或表2M(適用時(shí))查的相應(yīng)的電氣間隙,則應(yīng)采用所查得的該電氣間隙值作為最小爬電距離的數(shù)值
很專業(yè) 資料很好 收下了謝謝
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@wuzhonggui
這是IEC-60950的空間和爬電距離要求:附表2J–AC交流電源瞬間電壓(摘錄標(biāo)準(zhǔn)表2J)ACmainsupplyvoltageuptoandincludingaMainstransientvoltageVpeakbOvervoltagecategoryVr.m.sIII50330550100500800150c8001500300d15002500600e25004000a Forequipmentdesignedtobeconnectedtoathree-phase,three-wiresupply,wherethereisnoneutralconductor,theACMAINSSUPPLYvoltageistheline-to-linevoltage.Inallothercases,wherethereisaneutralconductor,itistheline-to-neutralvoltage.b TheMAINSTRANSIENTVOLTAGEisalwaysoneofthevaluesinthetable.Interpolationisnotpermitted.c Including120/208Vand120/240V.d Including230/400Vand277/480V.e Including400/690V.Ingeneral,CLEARANCESinequipmentintendedtobeconnectedtotheACMAINSSUPPLYshallbedesignedforOvervoltageCategoryII.如果所測的工作電壓峰值超過下表規(guī)格時(shí),上述空間距離的值需增加下表所列的對應(yīng)值附表2K–一次電路以及一次電路與二次電路之間的最小電氣絕緣(摘錄標(biāo)準(zhǔn)表2K) Unit:mmPeakingworkingvoltage uptoandincluding,VMainstransientvoltage150025004000Pollutiondegree1and231and231,2and3FB/SRFB/SRFB/SRFB/SRFB/SR710.4120.81.32.61241.32423.26.42100.5120.81.32.61.4241.52423.26.4420F1.5 B/S2.0 R4.02.53.26.4840F3.0 B/S3.2 R6.4 ThevaluesinthetableareapplicabletoFUNCTIONALINSULATION(F)ifrequiredby5.3.4a)(see2.10.1.3),BASICINSULATION(B),SUPPLEMENTARYINSULATION(S)andREINFORCEDINSULATION(R).IfthepeakworkingvoltagesexceedsthepeakvoltageoftheACmainsupplyvoltage,linearinterpolationispermittedbetweenthenearesttwopoints,thecalculatedminimumclearancebeingroundeduptothenexthigher0.1mmincrement.附表2L–次電路中的附加間隙(摘錄標(biāo)準(zhǔn)表2L) Unit:mmMainstransientvoltage1500V2500VPollutiondegree1and2Pollution3FunctionalbasicorsupplementaryinsulationReinforcedinsulationPollutiondegree1,2and3FunctionalbasicorsupplementaryinsulationReinforcedinsulationPeakworkingvoltageuptoandincluding, VPeakworkingvoltageuptoandincludingV21021000420002982940.10.24930.10.23863790.20.45670.20.44744630.30.66400.30.65625470.40.87130.40.8Forvoltagesabovethepeakworkingvoltagevaluesgiveninthetable,linerextrapolationispermitted.附表2N–最小爬電距離(摘錄標(biāo)準(zhǔn)表2N) Unit:mmRMSworkingvoltageuptoandincluding,VPollutiondegree12123MaterialgroupPrintedboardsOthermaterialsI,II,IIIa,IIIbI,II,IIIaI,II,IIIa,IIIbIIIIIIa,IIIbIIIIIIa,IIIb100.0250.040.080.40.40.411112.50.0250.040.090.420.420.421.051.051.05160.0250.040.10.450.450.451.11.11.1200.0250.040.110.480.480.481.21.21.2250.0250.040.1250.50.50.51.251.251.25320.0250.040.140.530.530.531.31.31.3400.0250.040.160.560.81.11.41.61.8500.0250.040.180.60.851.21.51.71.9630.040.0630.20.630.91.251.61.82800.0630.10.220.670.91.31.71.92.11000.10.160.250.7111.41.822.21250.160.250.280.751.051.51.92.12.41600.250.40.320.81.11.622.22.52000.40.630.4211.422.52.83.22500.5610.561.251.82.53.23.643200.751.60.751.62.23.244.5540012122.8455.66.35001.32.51.32.53.656.37.18Linearinterpolationispermittedbetweenthenearesttwopoints,thecalculatedspacingbeingroundedtothenexthigher0.1mmincrement.Forreinforcedinsulation,thecalculatedvalueforbasicinsulationshallbedoubledfirstbeforeapplyingtheroundingoff.我司產(chǎn)品一般使用“污染等級2,材料組別:IIIa或IIIb”如果從表2N查得的爬電距離小于從表2K或2L或表2M(適用時(shí))查的相應(yīng)的電氣間隙,則應(yīng)采用所查得的該電氣間隙值作為最小爬電距離的數(shù)值
學(xué)習(xí)了
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@wuzhonggui
這是IEC-60950的空間和爬電距離要求:附表2J–AC交流電源瞬間電壓(摘錄標(biāo)準(zhǔn)表2J)ACmainsupplyvoltageuptoandincludingaMainstransientvoltageVpeakbOvervoltagecategoryVr.m.sIII50330550100500800150c8001500300d15002500600e25004000a Forequipmentdesignedtobeconnectedtoathree-phase,three-wiresupply,wherethereisnoneutralconductor,theACMAINSSUPPLYvoltageistheline-to-linevoltage.Inallothercases,wherethereisaneutralconductor,itistheline-to-neutralvoltage.b TheMAINSTRANSIENTVOLTAGEisalwaysoneofthevaluesinthetable.Interpolationisnotpermitted.c Including120/208Vand120/240V.d Including230/400Vand277/480V.e Including400/690V.Ingeneral,CLEARANCESinequipmentintendedtobeconnectedtotheACMAINSSUPPLYshallbedesignedforOvervoltageCategoryII.如果所測的工作電壓峰值超過下表規(guī)格時(shí),上述空間距離的值需增加下表所列的對應(yīng)值附表2K–一次電路以及一次電路與二次電路之間的最小電氣絕緣(摘錄標(biāo)準(zhǔn)表2K) Unit:mmPeakingworkingvoltage uptoandincluding,VMainstransientvoltage150025004000Pollutiondegree1and231and231,2and3FB/SRFB/SRFB/SRFB/SRFB/SR710.4120.81.32.61241.32423.26.42100.5120.81.32.61.4241.52423.26.4420F1.5 B/S2.0 R4.02.53.26.4840F3.0 B/S3.2 R6.4 ThevaluesinthetableareapplicabletoFUNCTIONALINSULATION(F)ifrequiredby5.3.4a)(see2.10.1.3),BASICINSULATION(B),SUPPLEMENTARYINSULATION(S)andREINFORCEDINSULATION(R).IfthepeakworkingvoltagesexceedsthepeakvoltageoftheACmainsupplyvoltage,linearinterpolationispermittedbetweenthenearesttwopoints,thecalculatedminimumclearancebeingroundeduptothenexthigher0.1mmincrement.附表2L–次電路中的附加間隙(摘錄標(biāo)準(zhǔn)表2L) Unit:mmMainstransientvoltage1500V2500VPollutiondegree1and2Pollution3FunctionalbasicorsupplementaryinsulationReinforcedinsulationPollutiondegree1,2and3FunctionalbasicorsupplementaryinsulationReinforcedinsulationPeakworkingvoltageuptoandincluding, VPeakworkingvoltageuptoandincludingV21021000420002982940.10.24930.10.23863790.20.45670.20.44744630.30.66400.30.65625470.40.87130.40.8Forvoltagesabovethepeakworkingvoltagevaluesgiveninthetable,linerextrapolationispermitted.附表2N–最小爬電距離(摘錄標(biāo)準(zhǔn)表2N) Unit:mmRMSworkingvoltageuptoandincluding,VPollutiondegree12123MaterialgroupPrintedboardsOthermaterialsI,II,IIIa,IIIbI,II,IIIaI,II,IIIa,IIIbIIIIIIa,IIIbIIIIIIa,IIIb100.0250.040.080.40.40.411112.50.0250.040.090.420.420.421.051.051.05160.0250.040.10.450.450.451.11.11.1200.0250.040.110.480.480.481.21.21.2250.0250.040.1250.50.50.51.251.251.25320.0250.040.140.530.530.531.31.31.3400.0250.040.160.560.81.11.41.61.8500.0250.040.180.60.851.21.51.71.9630.040.0630.20.630.91.251.61.82800.0630.10.220.670.91.31.71.92.11000.10.160.250.7111.41.822.21250.160.250.280.751.051.51.92.12.41600.250.40.320.81.11.622.22.52000.40.630.4211.422.52.83.22500.5610.561.251.82.53.23.643200.751.60.751.62.23.244.5540012122.8455.66.35001.32.51.32.53.656.37.18Linearinterpolationispermittedbetweenthenearesttwopoints,thecalculatedspacingbeingroundedtothenexthigher0.1mmincrement.Forreinforcedinsulation,thecalculatedvalueforbasicinsulationshallbedoubledfirstbeforeapplyingtheroundingoff.我司產(chǎn)品一般使用“污染等級2,材料組別:IIIa或IIIb”如果從表2N查得的爬電距離小于從表2K或2L或表2M(適用時(shí))查的相應(yīng)的電氣間隙,則應(yīng)采用所查得的該電氣間隙值作為最小爬電距離的數(shù)值
很詳細(xì)的,呵呵
不過好像是有幾級要求的是吧,在不同的場合要求是不一樣的吧
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@wuzhonggui
這是IEC-60950的空間和爬電距離要求:附表2J–AC交流電源瞬間電壓(摘錄標(biāo)準(zhǔn)表2J)ACmainsupplyvoltageuptoandincludingaMainstransientvoltageVpeakbOvervoltagecategoryVr.m.sIII50330550100500800150c8001500300d15002500600e25004000a Forequipmentdesignedtobeconnectedtoathree-phase,three-wiresupply,wherethereisnoneutralconductor,theACMAINSSUPPLYvoltageistheline-to-linevoltage.Inallothercases,wherethereisaneutralconductor,itistheline-to-neutralvoltage.b TheMAINSTRANSIENTVOLTAGEisalwaysoneofthevaluesinthetable.Interpolationisnotpermitted.c Including120/208Vand120/240V.d Including230/400Vand277/480V.e Including400/690V.Ingeneral,CLEARANCESinequipmentintendedtobeconnectedtotheACMAINSSUPPLYshallbedesignedforOvervoltageCategoryII.如果所測的工作電壓峰值超過下表規(guī)格時(shí),上述空間距離的值需增加下表所列的對應(yīng)值附表2K–一次電路以及一次電路與二次電路之間的最小電氣絕緣(摘錄標(biāo)準(zhǔn)表2K) Unit:mmPeakingworkingvoltage uptoandincluding,VMainstransientvoltage150025004000Pollutiondegree1and231and231,2and3FB/SRFB/SRFB/SRFB/SRFB/SR710.4120.81.32.61241.32423.26.42100.5120.81.32.61.4241.52423.26.4420F1.5 B/S2.0 R4.02.53.26.4840F3.0 B/S3.2 R6.4 ThevaluesinthetableareapplicabletoFUNCTIONALINSULATION(F)ifrequiredby5.3.4a)(see2.10.1.3),BASICINSULATION(B),SUPPLEMENTARYINSULATION(S)andREINFORCEDINSULATION(R).IfthepeakworkingvoltagesexceedsthepeakvoltageoftheACmainsupplyvoltage,linearinterpolationispermittedbetweenthenearesttwopoints,thecalculatedminimumclearancebeingroundeduptothenexthigher0.1mmincrement.附表2L–次電路中的附加間隙(摘錄標(biāo)準(zhǔn)表2L) Unit:mmMainstransientvoltage1500V2500VPollutiondegree1and2Pollution3FunctionalbasicorsupplementaryinsulationReinforcedinsulationPollutiondegree1,2and3FunctionalbasicorsupplementaryinsulationReinforcedinsulationPeakworkingvoltageuptoandincluding, VPeakworkingvoltageuptoandincludingV21021000420002982940.10.24930.10.23863790.20.45670.20.44744630.30.66400.30.65625470.40.87130.40.8Forvoltagesabovethepeakworkingvoltagevaluesgiveninthetable,linerextrapolationispermitted.附表2N–最小爬電距離(摘錄標(biāo)準(zhǔn)表2N) Unit:mmRMSworkingvoltageuptoandincluding,VPollutiondegree12123MaterialgroupPrintedboardsOthermaterialsI,II,IIIa,IIIbI,II,IIIaI,II,IIIa,IIIbIIIIIIa,IIIbIIIIIIa,IIIb100.0250.040.080.40.40.411112.50.0250.040.090.420.420.421.051.051.05160.0250.040.10.450.450.451.11.11.1200.0250.040.110.480.480.481.21.21.2250.0250.040.1250.50.50.51.251.251.25320.0250.040.140.530.530.531.31.31.3400.0250.040.160.560.81.11.41.61.8500.0250.040.180.60.851.21.51.71.9630.040.0630.20.630.91.251.61.82800.0630.10.220.670.91.31.71.92.11000.10.160.250.7111.41.822.21250.160.250.280.751.051.51.92.12.41600.250.40.320.81.11.622.22.52000.40.630.4211.422.52.83.22500.5610.561.251.82.53.23.643200.751.60.751.62.23.244.5540012122.8455.66.35001.32.51.32.53.656.37.18Linearinterpolationispermittedbetweenthenearesttwopoints,thecalculatedspacingbeingroundedtothenexthigher0.1mmincrement.Forreinforcedinsulation,thecalculatedvalueforbasicinsulationshallbedoubledfirstbeforeapplyingtheroundingoff.我司產(chǎn)品一般使用“污染等級2,材料組別:IIIa或IIIb”如果從表2N查得的爬電距離小于從表2K或2L或表2M(適用時(shí))查的相應(yīng)的電氣間隙,則應(yīng)采用所查得的該電氣間隙值作為最小爬電距離的數(shù)值
這些安全距離,是怎么得出來的?
我的理解是在空間上加一定的電壓,然后看漏電流,但這個(gè)漏電流是多大才符合標(biāo)準(zhǔn)呢?
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@cheng111
謝謝,不知道這個(gè)文檔從哪里下載呢。我準(zhǔn)備開始研究AC-DC模塊,想多學(xué)習(xí)一些
60950對應(yīng)的國標(biāo)是4943.給你傳一個(gè)。
GB4943-2001

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