IEC 61881-2:2012 applies to d.c. aluminium electrolytic capacitors (cell, module and bank) for power electronics intended to be used on rolling stock. It specifies quality requirements and tests, safety requirements, and describes installation and operation information.<\/p>\n
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| 6<\/td>\n | English CONTENTS <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | 1 Scope 2 Normative references <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | 3 Terms and definitions <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | 4 Service conditions <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 4.1 Normal service conditions 4.1.1 General 4.1.2 Altitude 4.1.3 Temperature 4.2 Unusual service conditions <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | 5 Quality requirements and tests 5.1 Test requirements 5.1.1 General 5.1.2 Test conditions 5.1.3 Measurement conditions 5.1.4 Voltage treatment 5.1.5 Thermal treatment 5.2 Classification of tests 5.2.1 General <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | 5.2.2 Type tests 5.2.3 Routine tests Table 1 \u2013 Classification of tests <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | 5.2.4 Acceptance tests 5.3 Capacitance and tangent of loss angle (tan\u03b4) 5.3.1 Capacitance 5.3.2 Tangent of loss angle (tan\u03b4) 5.4 Leakage current 5.4.1 Capacitor cell 5.4.2 Capacitor module or bank 5.5 Insulation test between terminals and case 5.5.1 Capacitor cell <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | 5.5.2 Capacitor module or bank 5.6 Sealing test 5.7 Surge discharge test (under consideration) 5.7.1 General 5.7.2 Preconditioning 5.7.3 Initial measurement 5.7.4 Test methods <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | 5.7.5 Post treatment 5.7.6 Final measurement 5.7.7 Acceptance criteria 5.8 Environmental testing 5.8.1 Change of temperature <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | 5.8.2 Damp heat, steady state Table 2 \u2013 Damp heat steady-state test <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | 5.9 Mechanical testing 5.9.1 Mechanical tests of terminals 5.9.2 External inspection 5.9.3 Vibration and shocks 5.10 Endurance test 5.10.1 General 5.10.2 Preconditioning 5.10.3 Initial measurements 5.10.4 Test methods Table 3 \u2013 Testing the robustness of terminals <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | 5.10.5 Post treatment 5.10.6 Final measurement 5.10.7 Acceptance criteria 5.11 Pressure relief test 5.12 Passive flammability 6 Overloads 6.1 Maximum permissible voltage <\/td>\n<\/tr>\n | ||||||
| 22<\/td>\n | 6.2 Maximum permissible current 7 Safety requirements 7.1 Discharge device 7.2 Case connections (grounding) 7.3 Protection of the environment 7.4 Other safety requirements <\/td>\n<\/tr>\n | ||||||
| 23<\/td>\n | 8 Marking 8.1 Marking of the capacitor 8.1.1 Capacitor cell 8.1.2 Capacitor module or bank 8.2 Data sheet <\/td>\n<\/tr>\n | ||||||
| 24<\/td>\n | 9 Guidance for installation and operation 9.1 General 9.2 Choice of rated voltage 9.3 Operating temperature 9.3.1 Life time of capacitor 9.3.2 Installation <\/td>\n<\/tr>\n | ||||||
| 25<\/td>\n | 9.3.3 Unusual cooling conditions 9.4 Over voltages 9.5 Overload currents 9.6 Switching and protective devices Figure 1 \u2013 Examples of preferred vent and anode position <\/td>\n<\/tr>\n | ||||||
| 26<\/td>\n | 9.7 Dimensioning of creepage distance and clearance 9.8 Connections 9.9 Parallel connections of capacitors 9.10 Series connections of capacitors 9.11 Magnetic losses and eddy currents 9.12 Guide for unprotected capacitors <\/td>\n<\/tr>\n | ||||||
| 27<\/td>\n | Annex A (informative) Terms and definitions of capacitors Figure A.1 \u2013 Example of capacitor application in capacitor equipment <\/td>\n<\/tr>\n | ||||||
| 28<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Railway applications. Rolling stock equipment. Capacitors for power electronics – Aluminium electrolytic capacitors with non solid electrolyte<\/b><\/p>\n |