EN 60938-2:1999

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Fixed inductors for electromagnetic interference suppression - Part 2: Sectional specification (IEC 60938-2:1999)Drosseln zur Unterdrückung elektromagnetischer Störungen -- Teil 2: RahmenspezifikationInductances fixes d'antiparasitage -- Partie 2: Spécification intermédiaireFixed inductors for electromagnetic interference suppression -- Part 2: Sectional specification29.180Transformatorji. DušilkeTransformers. ReactorsICS:Ta slovenski standard je istoveten z:EN 60938-2:1999SIST EN 60938-2:2002en01-september-2002SIST EN 60938-2:2002SLOVENSKI
STANDARD
IEC 60938-2Edition 2.0 1999-11INTERNATIONAL STANDARD NORME INTERNATIONALEFixed inductors for electromagnetic interference suppression –
Part 2: Sectional specification
Inductances fixes d'antiparasitage –
Partie 2: Spécification intermédiaire
INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE VICS 29.100.10; 31.020 PRICE CODECODE PRIXISBN 2-8318-9906-0QC 280100
– 2 – 60938-2 © IEC:1999 CONTENTS FOREWORD.4 1 General.6 1.1 Scope.6 1.2 Object.6 1.3 Normative references.6 1.4 Information to be given in a detail specification.7 1.4.1 General.7 1.4.2 Outline drawing and dimensions.7 1.4.3 Mounting.8 1.4.4 Ratings and characteristics.8 1.4.5 Marking.8 1.5 Definitions.8 1.6 Marking.8 2 Preferred ratings and characteristics.9 2.1 Climatic categories.9 2.2 Values of ratings.9 2.2.1 Rated inductance and tolerance.9 2.2.2 Rated voltage (UR).9 2.2.3 Category voltage (UC).9 2.2.4 Rated temperature.9 2.2.5 Rated current.9 2.2.6 Passive flammability.9 3 Quality assessment procedures.10 3.1 Primary stage of manufacture.10 3.2 Structurally similar inductors.10 3.3 Certified records of released lots.10 3.4 Qualification approval.10 3.4.1 Qualification approval on the basis of the fixed sample size procedures.10 3.5 Quality conformance inspection.13 3.5.1 Formation of inspection lots.13 3.5.2 Test schedule.14 3.5.3 Delayed delivery.14 4 Test and measurement procedures.14 4.1 Visual examination and check of dimensions.14 4.1.1 Dimensions (gauging).14 4.1.2 Dimensions (detail).14 4.2 Voltage proof.14 4.3 Insulation resistance.15 4.4 Inductance.15 4.5 DC line resistance.15 4.6 Robustness of terminations.16 4.7 Resistance to soldering heat.16 4.7.1 Conditions.16 4.7.2 Final inspection, measurements and requirements.16 4.8 Solderability.16 4.9 Rapid change of temperature.16 SIST EN 60938-2:2002

60938-2 © IEC:1999 – 3 – 4.10 Vibration.16 4.11 Bump.17 4.12 Shock.17 4.13 Container sealing.18 4.14 Climatic sequence.18 4.14.1 Initial measurements.18 4.14.2 Dry heat.18 4.14.3 Damp heat, cyclic, test Db, first cycle.18 4.14.4 Cold.18 4.14.5 Low air pressure.18 4.14.6 Damp heat, cyclic, test Db, remaining cycles.18 4.14.7 Final inspection, measurements and requirements.19 4.15 Damp heat, steady state.19 4.15.1 Final inspection, measurements and requirements.19 4.16 Temperature rise (applies only to inductors with a mass > 5 g).19 4.16.1 Test method.19 4.16.2 Requirements.20 4.17 Impulse voltage (applies to inductors with more than one winding).20 4.17.1 Initial measurements.20 4.17.2 Requirements.20 4.18 Endurance.20 4.18.1 Test conditions – Endurance current test.20 4.18.2 Test conditions – Endurance voltage test between terminations (applies to inductors with more than one winding).21 4.19 Passive flammability (if applicable).21 4.20 Component solvent resistance (if applicable).21 4.21 Solvent resistance of marking (if applicable).21 Annex A (normative)
Test schedule for safety tests only approval.22 Annex B (normative)
Test schedule for safety tests and performance tests for qualification approval, assessment level D.25 Annex C (normative)
Example of a suitable circuit for the endurance test voltage.30 Annex D (normative)
Declaration of design (confidential to the manufacturer and the certification body).31 Annex E (normative)
Test methods for thyristor electromagnetic
interference suppression inductors.32
Figure C.1 – Endurance test circuit.30 Figure E.1 – Test circuit for temperature rise.32 Figure E.2 – Test circuit for interference voltage attenuation.33
Table 1 – Sampling plan for safety tests only.12 Table 2 – Sampling plan for safety tests and performance tests, assessment level D.13 Table 3 – Measuring points.15 Table 4 – Acceleration.16 Table 5 – Sweep cycles.17 Table 6 – Preferred severities.18
– 4 – 60938-2 © IEC:1999 INTERNATIONAL ELECTROTECHNICAL COMMISSION ____________
FIXED INDUCTORS FOR ELECTROMAGNETIC INTERFERENCE SUPPRESSION –
Part 2: Sectional specification
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