IEC60950产品设计结构简介

1、IEC 60950产品设计/结构简介IEC 60950 Design / Construction1.绝缘方式_(lnsulation,-Clause.2.9)做为电击保护者非做为电击保护者基本绝缘(Basic Insulation)-针对于电击之保护所提供之基本绝缘。辅助绝缘(Supplementary Insulation)-附加于基本绝缘上之独立性绝缘，以 在基本绝缘失败时，可以减少电击之危险。双重绝缘(Double Insulation)-基本绝缘加辅助绝缘之总称。强化绝缘(Reinforced Insulation)-相等于双重绝缘之单层绝缘。功能绝缘(Fuctional Insul

2、ation)-产品正常使用时所必要之绝缘。Table 2G -of application of inuhtionGrad ofLiMllmOll UlSiLIlJNCflk 即 io nqu 葩 sr別nd1. FUNCIIOWAL L* buntaihQd 8ELV circuit or doju&pal出nm聞 rardudh% pn-double-m5iLidcii conclrtke prl -in盟num selv circuit -ea处聞 Stl VC1RCIJIT询问 TW 1 emeurFlF3F2FlHD匝创日曲同SUV CIRCUIT-eaHliRd StLVCIRCI

3、in说nm匝i mndiLKiMA psn -LhrthAd INV1 CIHGUir-NnlhHd TMM circuitM1F11F120 门鱼沁4ELV CIRCUIT gir bode- Ingulolcl portearthed condydth 跑1 -rarlhsl SJEL V URCUTbalcqnail帕 d condglN1& prt 二 ELV CIRCUITF3F3F4malhed HAZARDOUS VOLTAGE 呂匚CONDARY CIRCUITMltHOI HAZARLCHS VOL1AGE ECOJfJtJARY CIRCUITF5IN7 laRcuirW

4、1 CIRCUITF?TNV-2 QRCUITTM/-2 CIRCUITFflrj / -.iF.iuirM. i ClRcUnr-笙 morrsof 制 ttarMainr wrtiraF6Table 2G - Examples of application of insulalon ContinuodGrade of insulationLocation of hisulalicaKey to figure 2Fbtwznand2. BASICPRIMARY CIRCUIT-earthed a urejflhed HAZAPBOUS VOLTAGE SECONDARY CIRCUIT -e

5、arthod ccndwth屯 pal-MrthBd SELV CIRCUIT-basic insufated canirtr.(xit-ELV CIRCUITBlB2B2B3B3earlbjd or uiQithl HAZARDOUS VOLTAGE SECONDARYCIRCUir Uicaithed HAZARDOUS VOLTAGE SECONDARY CIRCUFT-earthed condudre pal-earthod SELV CIRCUIT-basic insulated carlucthe pert-ELV CIRCUITD4B685B686urartbsd SELV CI

6、RCUIT or (fcxiUo insulted condJdke part-inearthed 1NV-1 CIRCUir-TNV 2 CIRCUIT FNV-3 CIRCUIT07 see 6)B8DO so 5)earthed SELV CIRCUir-TNV 2 CIRCUIT -TWO CIRCUITB10 see4B10 see 4)7NV-2 CIRCUIT-in&aithed TNV-1 CIRCUIT-earthod ThW 1 CIRCUFT-TNV-3 CIRCUITB12see5)B13see4)B14 see6)TNV 3 CIRCUIT-UieQlthcxI TN

7、V 1 CIRCUFT earthed TW-1 CIRCUITD12B13 see 4)3. SUPPL EM 匚 NT ARYbasic insUated oordixtlve pari a ELV CIRCUFTdoit)k nsil2td conductke part-ui&arthed SELV CIRCUI1S1 see 2)S1 see2)1NV CIRCUir-txaslc insulated corkrthG pert-ELV CIRDUHS2see4)S24 SUPPLEMEMTARY or REINFORCEDun?artb9d HAZARDOUS VOLTAGE SEC

8、ONDARY CIRCUir-doitihsUsted conducthe pari UieQlthod SELV CIRCUIT-TN7 CIRCUITS/R1 s3)S/R1 sob 6S?R2se&3)5. REINFORCEDPRIMARY CIRCUirdoiDk? nsuted conductr.e pari -ifiearthed SELV CIRCUIT -ThW CIRCUITR1R1R2eathod HAZARDOUS VOLTAGE SECONDARY CIRCUIT-doii)risUt6d conduct* pari-in&artliBd SELV CIRCUIT-T

9、W CIHCUI1R3R3M1) See 53 4 fcf reqilreniits fct FUNCTIONAL INSULAFICN2) T 怕 woiMrq volt 说 a of the SUPPLE ME Hl ARY INSULA 1ICN betzn an ELV CIRCUIT or a tas 忙 1冋型& ccndjctre pait and an inooithcd acceesiUe oonducttw part ts equal to the most onerous WORKING VOLTAGE for IhQ BASIC INSULATION TM most 0

10、R?rctB WORKING VCtTAGE may IX dittos PRIMARY CIRCUIT Of SECONDARY CIRCUfT and the insubllcn is speertted aooordingb*Table 2G 一 Examples of application of insulation ContinuedGrade of insulationLocation of Insula DaiKey to ngure2Fbetween|and3)lnsullon teUeen an unrthod SCCCWDARY QRCUIT M HAZARDOUS VO

11、LTAGE am an mcorthed aocesslUG ccndrthe part or circuil(S?R in ngjre 2F) shall satisfy tfv mae onaous of tte IdloudrK) -REMFCRCEO INSULATION wtUBB WORKING VOLTAGE Is equal to lha HAZARDOUS VOLTAGE； or -SUFPLEMCMTARYINSULA1ICN whose WORKING VOLTAGE Ks equal to the votago the SECONOARY CIRCUIT al HAZA

12、RDOUS VOLTAGE； and arotb?r SECONDARY CIRCUIT at LUZARDOUS VOLTAGE or a mihtRY CIRCUITrhese exanps apply ir： mo is ony dasic insulaiicw betAwn secondary ciwduit am in? primary ciRcun am 一 there is orly BASIC JNSULA1ION between the SECONDARY CIRCUIT and ectttiBASIC IMSULATION is nd ak*ays reared (see

13、2.325)1he requrecumtscf 210 ap0y See also 6 2.1.6ir? reqiircncils d 2.10 do not appr. bil s6.2 1.NOFE - rhe term tondjetke pair refets Io 的 etecijicslly condirttw pari lhal S-nd roimdly crerglzcd. an1一 not (xnnectcd to any of the rollowng a crcut at HAZARDOUS VOLTAGE. or an ELV CIRCUIT, cr a TNV CIR

14、CUIT, or anSELV ciRCUir.or a LIMITED CURRENT CIRCUir.Rxanplee c( sucti a cantrip pM sre the BODY of eqjpnrt. a transitnr cae. am in some cages a coidrlhe screen in a tmnyoiwerir sun aoccKluclhY part is proteded from apart ai HAZARDOUS VOLTAGE by-DOUBLE ORRENFORCED INSULATION. It is tand a dcxjbllnsu

15、htedcx)rdirilYB p打.-BASIC INSULATION pbs Ffokctbw corthing. t Is fcffTKd an - 5.1mm(for UL) , 7.9 mm (CSA)。输入线须耐35 lb拉力测试(UL 1310)。输岀线须耐20 lb拉力测试(UL 1310)。3.空间 /沿面距离_(Clearance/Creepage_Distances,Clause_2.10,_Tables_2H,_2J,_2K_and_2L)空间直线距离以峰值电压，根据Table 2H (primary)、2J (primary additional)、2K (secon

16、dary)计算。沿面爬行距离以 RMS电压值，根据 Table 2L计算，但不小于空间直线距离。250 V 以下时，L 至 N、初级至地：creepage 2.5 mm， clearanee 2.0 mm (整流前)。250 V 以下时初级至次级：creepage 5 mm， clearanee 4 mm。TNV 至 SELV 线路： creepage 2.5 mm， clearanee 2.0 mm (Nemko) : creepage 2.0 mm， clearanee 1.8 mm (T u V)。PCB间距应参照实际工做电压(peak or dc)，若间距不足时 UL可做耐压测试，CS

17、A做短路测试。零件应施以10 N之推力作判断。空间距离：空间距离的数值应符合下列最小值的规定： 立地式产品的外壳或桌上型产品上非重直面顶部，可接近导电零件，与危险性电压上零件，用作强化绝缘(Reinforced insulation)之空气间隙，不得小于10mm。 A类插头式产品之外壳上，已接地之可接近导电零件，与危险性电压上零件，用作基本 绝缘(Basic insulation)之空气间隙，不得小于2mm。Primary Circuit之空间距离应符合 Table 2H及2J中最小值之规定。如果工作电压之峰值超过AC主电源电压之峰值时，绝缘之最小空间距离为下列两项数值之和：工作电压等于AC主

18、电源电压时，Table 2H之最小空间距离值；以及 Table 2J中附加空间距离值。沿面距离：沿面距离不得少于Table 2L之最小数值。强化绝缘或双重绝缘(Reinforced or Double insulation) 之沿面距离是 Table 2L中基本绝缘数值的两倍。如果Table 2L之沿面距离小于 Table 2H，2J与2K之空间距离时，则空间距离即是最小沿面距 离。判定沿面距离时之工作电压应考虑下列要项： 实际的RMS值或DC电压值。 如使用DC电压值，不必考虑附加之纹波。 短期情况(如TNV线路中之振铃信号)，不必考虑。 短暂之干扰不必考虑(如噪声)。 连到TNV线路中，如

19、果无法得知通讯网络之特性时，其工作电压应假定，TNV-1线路为 60 Vdc，TNV-2 与 TNV-3 线路为 120Vdc。如果所量测之工作电压，在相邻两点之间可使用内插法，来决定最小沿面距离。Table 2H - Minimumfor insuhticn in primary circuits.弟。日 bety/etn piimiyand seendary circuits1.1iri miuinv-liWGRKHHGVOLTAGE uplO anti indudingNk：i(nlllJl AC M&INS SUPPLY VDHag& 山 ISO V CHAINS TRAHSIENT

20、VOLTAGE 1 500 V)NcmlnJI AC MAINS SUPPLY M|iag& iso Vi 3)e Vi mains TRANSIENT VOLTAGE 2 901 MJNomnal AC HAINS supply oftjge 300 V r me w/ -3.26.4 6fl)S4Cam3.0 as 3,2 (10) R B.4 io ruNCTiONWL i；riBASic 10). supplemenitary is：i 血口RniNFiDRCED ilR：i INSLJLATICfl.I II-Hill1亦一小 小打汕山门！ H-zli. -J IFTI I MF 1

21、50 V i 300 VAddMionai ：lLaram210 p10)296 p6B)3% I166)174 (4)旳阿)瓯 tern )738 (67B)3% (75C)914 (SMJ1 005? (912)1 030旧的210 (210) 羽d375 (3i7S)屈(459)547 (Ml)632 (G?4715 (TO7)800 (790)430 (420)如松硏)71J (739787 (907 08G (3S433 (9B1 1006 (1 O39| 1 080 (1 116 1 153 (1 1901 1 226 (1 271) 1 300 (1 Ufli(1阿4：1 D.?

22、 0.1 EM D,t &.& 07 0.& 0.& 1Q 1.11 y2D0204OJS0J5 W u141JSU裁2.4Tha 记1帕6 in FtiTtliAseuii刖 l-wilfill Ihe V3III+*. iri pMMli西辭tl 的卜出3(6 聞4 1*肚啊躺衣 dUl曲ID料时扫晦2H MR -fOI HINdlONAL INSULA nohlTable 2K - Minimum clearances in secondary circuitsCLEARANCES in milkmotretNominal AC MAINS SUPPLY voltage MNominal

23、 AC MAINS SUPPLY voltage Nominal AC MAINSCircuit not subject150 V150 Vi 300 VSUPPLY voltaoe to trantkntWORKING300 V GOO VovervoltagesVOLTAGE up to(transient rating for SECONDARY(transient rating for SECONDARY(transient rating forand includingCIRCUIT 800 V)CIRCUIT 1500 V)SECONDARYCIRCUIT 2500 V)see5)

24、see 5)see9)see4)It ) i peak or d e.Voltage r.m.s. (tinu soidal)Pollution Degrees1 and 2Pollution Degree3Pollution Degrees1 and 2Pollution Degree 3Pollution Degrees1.2 and 3Pollution Degrees 1 and 2 onlyVVFBSRFB/SRFB?SRFB/SRFB/SRFBSR71500.40.71.41.01.32.60.71.02.01.01.32.6172.04.00.40.40.8(02)(ON)(0.

25、4)(0.8)(0.8)(1.6)(0.5)(0.5)d.O)(0.8)(0.8)(1.6)(1.5)d.5)(3.0)(0.2)(0.2)(0.4)1401000.6O.7141.01.22.60.71.02.01.01.22.61.72.04.00.60.71.4gg)(0.4)(0.8*(0.8)(1-6)(0.5)(0.5)(1.0)(0.8)(0.8)(1.6)(1.5)(1.5)(3.0)(0.2)(0.2)(0.4)2101500.60.91.81.01.32.60.71.02.01.01.32.6172.000.60.71.4(0.2)(02)(0.4)(0.8)(0.8)(1

26、.6)(0.5)(0.5)(1.0)(0.8)(0.8)(1.6)(1.5)(1.5)(3.0)(0.2)(0.2)(0.4)280200F 1.1 (0.8) 9S1.4 (0.8) R 2.8 (1.6)1.72.04.01.11.12.2(1.5)(1.5)(3.0)(0.2)(0.2)(0.4)420300F 1.6 (1.0) B/S1.9(1,0) R3.8 (2.0)1.72.04.01.41.42.8(1.5)(1.5)(3.0)(0.2)(0.2)(0.4)700500F/B/S 2.5R 5.0&40600F/B/S 3.2R 5.01 4001 000F/B/S 4.2R

27、 5.02 8002 000F/B/&R 8.4See 6)7 0005 000FB0R 17.59 8007 000F 旧0R 25Se 6)14 00010 000F/B/&R 37See 6)26 00020 000F/B/&R 80See 6)Table 2L 一 Minimum creepage distancesCREEPAGE DISTANCES in millimetresWORKING VOLTAGEFUNCTIONAL. BASIC and SUPPLEMENTARY INSULATIONPollution Degree 1Pollution Degree 2Polluti

28、on Degree 3VMaterial GroupMaterial GroupMaterial Groupr.m.s. or d.c.1. II. Illa or lllb1IIIlla *or lllbIIIIlla or lllb 50Use the CLEARANCE fromo.e0.91.21.51.71.9100the appropriate table0.71.01.41.S2.02.21250.81.11.51.92.12.41500.81.11.62.02.22.52001.01.42.02.52.83.22501.31.82.53.23.64.03001.62.23.24

29、.04.55.04002.02.84.05.05Q6.36003.24.5638.09.610.08004.05.68.010.011.012.51 0005.07.110.012.514.016.0Linear interpolation is permitted between fre nearest two points. calculated spacing beirg rounded to the next higher 0mm合nt.线圈/变压器.(Transformer)若变压器线圈温度测试超过 110OC （95oC温升）,则须有UL Class B变压器绝缘系统（OBJY2） Line Choke温度测试若超过 110oC，无须为UL认可之Class B变压器绝缘系统，但bobbin，ins