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BS EN 60939-3:2015 Passive filter units for electromagnetic interference suppression - Passive filter units for which safety tests are appropriate, 2018
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- CONTENTS
- FOREWORD
- 1 General [Go to Page]
- 1.1 Scope
- 1.2 Normative references
- 1.3 Information to be given in a detail specification [Go to Page]
- 1.3.1 General
- 1.3.2 Outline drawing and dimensions
- 1.3.3 Mounting
- 1.3.4 Ratings and characteristics
- 1.3.5 Marking
- 1.4 Terms and definitions
- Tables [Go to Page]
- Table 1 – Classification of Class X capacitors
- Table 2 – Classification of Class Y capacitors
- 1.5 Marking [Go to Page]
- 1.5.1 General
- Figures [Go to Page]
- Figure 1 – Asymmetrical and symmetrical test circuit [Go to Page]
- 1.5.2 Coding
- 1.5.3 Marking details
- 1.5.4 Marking of filters
- 1.5.5 Marking of packaging
- 1.5.6 Additional marking
- 1.6 Components
- 1.7 Overcurrent protective devices
- 1.8 Wiring and Insulation [Go to Page]
- 1.8.1 General
- 1.8.2 Sleeving, tubing and wire insulation
- 1.8.3 Properties of insulation material
- 1.9 Protective Bonding Conductors
- 1.10 Corrosion
- 2 Preferred ratings and characteristics [Go to Page]
- 2.1 Preferred characteristics [Go to Page]
- 2.1.1 General
- 2.1.2 Preferred climatic categories
- 2.2 Preferred values of ratings [Go to Page]
- 2.2.1 Rated voltage (UR)
- 2.2.2 Rated temperature
- 2.2.3 Passive flammability
- 3 Test plan for safety tests [Go to Page]
- 3.1 Structurally similar filters
- 3.2 Safety approval procedure [Go to Page]
- 3.2.1 General
- 3.2.2 Sampling
- 3.2.3 Tests
- 3.3 Requalification tests
- Table 3 – Tests concerning safety requirements only
- 4 Test and measurement procedures [Go to Page]
- 4.1 General [Go to Page]
- 4.1.1 General
- 4.1.2 Standard atmospheric conditions
- 4.1.3 Standard atmospheric conditions for testing
- Table 4 – Lot-by-lot test – Safety tests only approval [Go to Page]
- 4.1.4 Recovery conditions
- 4.1.5 Referee conditions
- 4.1.6 Reference conditions
- Table 5 – Standard atmospheric conditions [Go to Page]
- 4.1.7 Drying
- 4.2 Visual examination and check of dimensions [Go to Page]
- 4.2.1 Visual examination
- 4.2.2 Dimensions (gauging)
- 4.2.3 Dimensions (detail)
- 4.2.4 Creepage distances and clearances
- Table 6 – Creepage distances
- 4.3 Inductance measurement [Go to Page]
- 4.3.1 General
- 4.3.2 Measuring conditions
- 4.4 Earth inductors incorporated in filters
- 4.5 Capacitance [Go to Page]
- 4.5.1 General
- 4.5.2 Measuring conditions
- Table 7 – Clearance
- 4.6 Insertion loss
- 4.7 Insulation resistance [Go to Page]
- 4.7.1 General
- 4.7.2 Measuring voltage
- 4.7.3 Application of measuring voltage
- Table 8 – DC voltage for insulation resistance [Go to Page]
- 4.7.4 Mean time to measuring
- 4.7.5 Temperature correction factor
- 4.7.6 Information to be given in a detail specification
- Figure 2 – Examples for the application of Tests A and B of Table 9
- Table 9 – Measuring points [Go to Page]
- 4.7.7 Requirements
- Figure 3 – Examples for the application of Test C of Table 9
- Table 10 – Insulation resistance – Safety tests only
- 4.8 Voltage proof [Go to Page]
- 4.8.1 General
- 4.8.2 Test procedure
- 4.8.3 Applied voltage
- Table 11 – Insulation resistance – Safety and performance tests [Go to Page]
- 4.8.4 Tests
- Table 12 – Voltage proof (filter connected to mains)
- Table 13 – Voltage proof (filter not connected to mains; e.g. d.c. filters) [Go to Page]
- 4.8.5 Requirements
- 4.8.6 Repetition of the voltage proof test
- 4.8.7 Information to be given in a detail specification
- 4.8.8 Requirements
- 4.9 DC line resistance or voltage drop at rated current [Go to Page]
- 4.9.1 General
- 4.9.2 DC line resistance
- 4.9.3 Voltage drop at rated current
- 4.10 Discharge resistance [Go to Page]
- 4.10.1 General
- 4.10.2 Resistor Test
- 4.11 Robustness of terminations [Go to Page]
- 4.11.1 General
- 4.11.2 Test Ua1 – Tensile
- 4.11.3 Test Ub – Bending
- 4.11.4 Test Uc – Torsion
- 4.11.5 Test Ud – Torque
- Table 14 – Force for wire terminations
- Table 15 – Torque [Go to Page]
- 4.11.6 Visual examination
- 4.12 Resistance to soldering heat [Go to Page]
- 4.12.1 Applicability of the test
- 4.12.2 Pre-measurement
- 4.12.3 Test conditions
- 4.12.4 Test severity
- 4.12.5 Intermediate inspection, measurements and requirements
- 4.13 Solderability (for performance only) [Go to Page]
- 4.13.1 General
- 4.13.2 Test method
- 4.13.3 Test conditions
- 4.13.4 Requirements
- 4.13.5 Final measurements and requirements
- 4.14 Rapid change of temperature (for performance only) [Go to Page]
- 4.14.1 Pre-measurements
- 4.14.2 Test method
- 4.14.3 Final inspection
- 4.15 Vibration (for performance only) [Go to Page]
- 4.15.1 Pre-measurements
- 4.15.2 Test method
- 4.15.3 Test conditions
- 4.15.4 Intermediate inspection
- 4.15.5 Final Inspection
- 4.16 Shock (for performance only) [Go to Page]
- 4.16.1 Pre measurements
- 4.16.2 Test method
- 4.16.3 Test conditions
- 4.16.4 Final Inspection
- 4.17 Container sealing (for performance only) [Go to Page]
- 4.17.1 General
- 4.17.2 Test conditions
- 4.17.3 Requirements
- 4.18 Climatic sequence [Go to Page]
- 4.18.1 General
- 4.18.2 Initial measurements
- Table 16 – Preferred severity [Go to Page]
- 4.18.3 Dry heat
- 4.18.4 Damp heat, cyclic
- 4.18.5 Cold
- 4.18.6 Low air pressure
- 4.18.7 Damp heat, cyclic, remaining cycles
- 4.18.8 Final inspection, measurements and requirements
- 4.19 Damp heat, steady state [Go to Page]
- 4.19.1 Pre-measurements
- 4.19.2 Test method
- 4.19.3 Test conditions
- Table 17 – Number of cycles [Go to Page]
- 4.19.4 Final inspection, measurements and requirements
- 4.20 Temperature rise [Go to Page]
- 4.20.1 General
- 4.20.2 Test method
- 4.20.3 Test description
- 4.20.4 Requirements
- Table 18 – Maximum temperatures
- 4.21 Current overload [Go to Page]
- 4.21.1 Pre-measurements
- 4.21.2 Test method
- 4.21.3 Final inspection, measurements and requirements
- 4.22 Leakage current
- 4.23 Protective conductor resistance
- 4.24 Impulse voltage [Go to Page]
- 4.24.1 General
- 4.24.2 Initial measurements
- 4.24.3 Test conditions
- 4.24.4 Requirements
- Figure 4 – Impulse wave form
- 4.25 Endurance [Go to Page]
- 4.25.1 General
- 4.25.2 General test conditions
- 4.25.3 Test conditions – current test
- 4.25.4 Test conditions – voltage test, terminations/case
- 4.25.5 Test conditions – voltage test between terminations
- 4.25.6 Test conditions – combined voltage/current tests
- 4.25.7 Final inspection, measurements and requirements
- 4.26 Charge and discharge (for performance only) [Go to Page]
- 4.26.1 General
- 4.26.2 Test circuits and wave forms
- Figure 5 – Relay circuit
- Figure 6 – Thyristor circuit [Go to Page]
- 4.26.3 Information given in detail specification
- 4.26.4 Initial measurements
- Figure 7 – Voltage and current waveforms [Go to Page]
- 4.26.5 Test conditions
- 4.26.6 Final measurements and requirements
- 4.27 Passive flammability [Go to Page]
- 4.27.1 General
- 4.27.2 Test method
- Table 19 – Measurements and requirements after charge and discharge
- 4.28 Active flammability
- 4.29 Solvent resistance of the marking [Go to Page]
- 4.29.1 General
- 4.29.2 Test description
- Table 20 – Categories of flammability [Go to Page]
- 4.29.3 Requirements after test
- 4.30 Component solvent resistance (for performance only) [Go to Page]
- 4.30.1 General
- 4.30.2 Initial measurements
- 4.30.3 Test description
- 4.30.4 Final measurements
- Annex A (informative)Calculation of leakage current [Go to Page]
- Figure A.1 – Leakage current for 1-line filters
- Figure A.2 – Leakage current for 2-line filters
- Figure A.3 – Leakage current for 3-line filters
- Figure A.4 – Leakage current for 4-line filters
- Annex B (normative)Test schedule for safety requirements only [Go to Page]
- Table B.1 – Test schedule for safety requirements only (1 of 3)
- Annex C (normative)Circuit for the impulse voltage test [Go to Page]
- Figure C.1 – Impulse voltage test circuit
- Table C.1 – Values of CX, CT, RP, RS, CP
- Table C.2 – Values and tolerances of Cx, tr, td
- Annex D (normative)Circuit for the endurance test [Go to Page]
- Figure D.1 – Endurance test circuit
- Annex E (normative)Declaration of design
- Annex F (informative)Safety and performance tests qualification approval – Assessment level DZ [Go to Page]
- Table F.1 – Sampling plan – Assessment level DZ (1 of 2)
- Annex P (informative)Additional components and material standards
- Bibliography [Go to Page]
