IEC 60950安规培训资料 - u.dianyuan.com

1 IEC 60950 -1:2001 IEC60950-1 Internal DocumentConfidential :1. 2. Requirements4. 5. IEC 60950 -1:2001 1. IEC/EN 60950 -1 , :IEC 60950 -1:2001 ? (Electric shock) Yes (Energy hazards) Yes (Fire) Yes (Mechanical and heat hazards) Yes (Radiation hazards) YES (Chemical hazards) Yes (Materials and components) Yes -Electric shock , , , , , , 40 Vpeak 60 Vdc , , (single fault) _____ IEC 60950 -1:2001 ( two levels )-Energy hazards , , , , _____ _____ _____ IEC 60950 -1.

2 2001 -Fire , , : _____ _____ _____ _____ _____ _____ _____ _____ , IEC 60950 -1:2001 -Mechanical hazards : : _____ _____ _____ _____ _____ _____ IEC 60950 -1:2001 -Heat hazards ( ) : : _____ _____ _____ IEC 60950 -1:2001 -Radiation hazards , : _____ _____ , _____ IEC60950-1:2001 -Chemical hazards : IEC 60950 -1:2001 Materials and componentshazards Scope.

3 IEC 60950 mains-powered or battery powered ( ) , 60950 -1:2001 IEC 60950 -1:2001 IEC 60950 -1:2001 IEC 60950 -1:2001 IEC 60950 -1:2001 IEC 60950 -1:2001 IEC 60950 -1:2001 IEC 60950 -1:2001 IEC 60950 -1:2001 IEC 60950 -1:2001 IEC 60950 -1:2001 IEC 60950 -1:2001 IEC 60950 -1:2001 : ( ), , , . :IEC 60950 -1:2001 60950 -1:2001 60950 -1:2001 IEC 60950 -1:2001 4. : ___SELV_ ___ _____ _ TNV : _____ _____ ELV _____ _____ _____ _____ _____ ELV _____ _____ IEC 60950 -1:2001 ELV (Functional Earthing) ; :a.

4 : _____ ____ (Protective screen) PE b.) _____ _____c.) IEC 60417 _____ terminal block IEC 60417 Note: d.) _____ e.) _____ _____ IEC60950-1:2001 PE Protective Bonding conductor501750195017 Class Protective earthingconductors 3B IEC 60950 -1:2001 Protective bonding conductors 3B 16A 2D IEC 60950 -1:2001 Protective protectivebonding conductors; 3B 3E IEC 60950 -1:2001 Protective earthingconductors _____ Protective bonding conductor _____ _____ _____ Protective bonding conductor (Assembly) ribbon cables busbars printedwiring IEC 60950 -1:2001 _____ _____ _____ Operator parts, _____ _____ _____ make earlier and break later.

5 _____ ____V IEC 60950 -1:2001 connectora plug on a power supply cordan appliance coupler (continue): 2 .However, it is permitted to use a single Metal part min. thread-cutting type or min. thread-forming type .IEC 60950 -1:2001 IEC 60950 -1:2001 ; 2G 2F betweenand unearthed SELV CIRCUIT or double-insulated conductive part earthed conductive part double-insulated conductive part unearthed SELV CIRCUIT earthed SELV CIRCUIT earthed TNV-1 CIRCUIT earthed SELV CIRCUIT earthed conductive part unearthed SELV CIRCUIT unearthed TNV-1 CIRCUIT earthed TNV-1 CIRCUITELV CIRCUIT or basic insulated conductive part earthed conductive part earthed SELV CIRCUIT basic insulated conductive part ELV CIRCUITE arthed hazardous voltage secondary circuitEarthed hazardous voltage secondary circuitTNV-1 CIRCUIT TNV-1 CIRCUITTNV-2 CIRCUIT TNV-2 CIRCUITTNV-3 CIRCUIT

6 TNV-3 CIRCUIT IEC 60950 -1:2001 PRIMARY CIRCUIT earthed or unearthed HAZARDOUS VOLTAGESECONDARY CIRCUIT earthed conductive part earthed SELV CIRCUIT basic-insulated conductive part ELV CIRCUITE arthed or unearthed hazardous voltage secondary circuit unearthed HAZARDOUS VOLTAGESECONDARY CIRCUIT earthed conductive part earthed SELV CIRCUIT basic-insulated conductive part ELV CIRCUIT unearthed SELV CIRCUIT or double-insulated conductive part unearthed TNV-1 CIRCUIT TNV-2 CIRCUIT TNV-3 CIRCUIT earthed SELV CIRCUIT TNV-2 CIRCUIT TNV-3 CIRCUITTNV-2 CIRCUIT unearthed TNV-1 CIRCUIT earthed TNV-1 CIRCUIT TNV-3 CIRCUITTNV-3 CIRCUIT unearthed

7 TNV-1 CIRCUIT earthed TNV-1 CIRCUITIEC 60950 -1:2001 basic-insulated conductivepart or ELV CIRCUIT double-insulated conductive part unearthed SELV CIRCUITTNV CIRCUIT basic-insulated conductive part ELV CIRCUIT / unearthed hazardous voltage secondary circuit double -insulated conductive part unearthed SELV CIRCUIT TNV CIRCUIT PRIMARY CIRCUIT double-insulated conductive part unearthed SELV CIRCUIT TNV CIRCUIT earthed HAZARDOUSVOLTAGESECONDARY CIRCUIT double-insulated conductive part unearthed SELV CIRCUIT TNV CIRCUITIEC60950-1:2001 (clearance) ____mm (non-vertical top surface) ____mm clearance 2H(rms) 2J(peak) AC cl.

8 Clearance 2K ____ N ____ N IEC 60950 -1:2001 (creepagedistances) 2L 2L 2L 2H 2J 2K TNV TNV TNV-1 TNV-2 TNV-3 IEC 60950 -1:2001 IEC 60950 -1:2001 IEC 60950 -1:2001 IEC 60950 -1:2001 IEC 60950 -1:2001 (creepagedistances) (continued) IEC 60112 material group group I_____ CTI (comparative tracking index) group II_____ CTI< group IIIa_____ CTI< group IIIb_____ CTI<_____ Annex F IEC/EN 60950 -1:2001 : FIGURE A, TWO INSULATION SYSTEM IN SERIES BETWEEN MAINS PRIMARY CIRCUITS AND USER ACCESSIBLE CIRCUITS AC 230 VUser accessiblecircuit IEC 60950 -1:2001 FIGURE B, PCB LAYOUT OF A CLASS I SWITCHING POWER SUPPLY PCB PrimaryGroundSecondaryLNPE basic insulationdouble or reinforced insulationIEC/EN 60950 -1.

9 2001 FIGURE C, ONE INSULATION SYSTEM AND SHIELDING CONNECTED TO PE BETWEEN MAINS PRIMARY CIRCUITS AND USER ACCESSIBLE CIRCUITS AC 230 VUser accessiblecircuit IEC/EN 60950 -1:2001 FIGURE D, WORKING VOLTAGE HIGHER THAN MAINS VOLTAGE PCB PrimaryGroundSecondaryLNPE basic insulationdouble or reinforced insulationIEC/EN 60950 -1:2001 FIGURE E, SHIELDING OF SECONDARY CIRCUIT WITH GND TRACE PCB PrimaryGroundSecondaryLNPE basic insulationXIEC/EN 60950 -1:2001 FIGURE F, SLOT INSIDE THE PCB BETWEEN PRIMARY AND SECONDARY PCB PrimaryGroundSecondaryLNPE basic insulationdouble or reinforced insulationIEC/EN 60950 -1:2001 IEC/EN 60950 -1:2001 IEC/EN 60950 -1:2001 IEC/EN 60950 -1:2001 (clause ) ( ) ____V ____Vpeak _____mm _____ mm (two tracks) IEC/EN 60950 -1.

10 2001 (continued) ( ) __ ___ ___ ___ ___ ___ ____ ___ IEC/EN 60950 -1:2001 (clause Wound components): (basic) (supplementary) (double) (reinforced) ( ) / a) b) c) :a) ( ) b) ( ) U IEC/EN 60950 -1:2001 (continue):c) ( ) U ( extruded wrapped type) : : Extruded ; ___ , wrapped ; ___ : extruded wrapped type; ___ : extruded wrapped type; ___ IEC/EN 60950 -1:2001 (continue): b) c) 2L ___