IEC 60938-2-2021 pdf download.Fixed inductors for electromagnetic interference suppression – Part 2: Sectional specification on power line chokes.
This part of IEC 60938 applies to fixed inductors designed for electromagnetic interference suppression, which will be connected to an AC mains or other supply with a nominal voltage not exceeding 1 000 V AC RMS or 1 500 V DC with a nominal frequency not exceeding 400 Hz. This sectional specification is restricted to fixed inductors for which safety tests are appropriate. This implies that inductors specified according to this specification will either be connected to mains supplies, when compliance with the mandatory tests of Annex A is necessary, or used in other circuit positions where the equipment specification prescribes that some or all of these safety tests are required. The object of this document is to prescribe standard requirements for safety tests, preferred ratings and characteristics, to select from IEC 60938-1 the appropriate methods of test and to give general performance requirements for suppression inductors.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document applies, including any amendments.
IEC 60027 (all parts), Letter symbols to be used in electrical technology
IEC 60050 (all parts), International Electrotechnical Vocabulary (IEV)
IEC 60060-1 , High-voltage test techniques – Part 1: General definitions and test requirements
IEC 60068-1 , Environmental testing – Part 1: General and guidance
IEC 60068-2-1 3, Environmental testing – Part 2-13: Tests – Test M: Low air pressure
IEC 60068-2-1 4, Environmental testing – Part 2-14: Tests – Test N: Change of temperature
IEC 60068-2-1 7, Basic environmental testing procedures – Part 2-17: Tests – Test Q: Sealing
IEC 60068-2-21 , Environmental testing – Part 2-21: Tests – Test U: Robustness of terminations and integral mounting devices
IEC 60068-2- Basic environmental testing procedures – Part 2-45: Tests – Test XA and guidance: Immersion in cleaning solvents
IEC 6031 7-0-7, Specifications for particular types of winding wires – Part 0-7: General requirements – Fully insulated (FIW) zero-defect enamelled round copper wire
IEC 6031 7-56, Specifications for particular types of winding wires – Part 56: Solderable fully insulated (FIW) zero-defect polyurethane enamelled round copper wire, class 180
IEC 60335-1 , Household and similar electrical appliances – Safety – Part 1: General requirements
IEC 6061 7, Graphical symbols for diagrams (available at http://std.iec.ch/iec6061 7)
IEC 60664-1 , Insulation coordination for equipment within low-voltage supply systems – Part 1: Principles, requirements and tests
IEC 60695-2-1 1 , Fire hazard testing – Part 2-11: Glowing/hot-wire based test methods – Glow-wire flammability test method for end-products (GWEPT)
IEC 60695-2-1 2, Fire hazard testing – Part 2-12: Glowing/hot-wire based test methods – Glow-wire flammability index (GWFI) test method for materials
IEC 60695-2-1 3, Fire hazard testing – Part 2-13: Glowing/hot-wire based test methods – Glow-wire ignition temperature (GWIT) test method for materials
IEC 60695-1 0-2, Fire hazard testing – Part 10-2: Abnormal heat – Ball pressure test method
IEC 60695-1 1 -1 0, Fire hazard testing – Part 11-10: Test flames – 50 W horizontal and vertical flame test methods
IEC 60695-1 1 -20, Fire hazard testing – Part 11-20: Test flames – 500 W flame test method
IEC 60851 -5, Winding wires – Test methods – Part 5: Electrical properties
IEC 60938-1 :2021 , Fixed inductors for electromagnetic interference suppression – Part 1: Generic specification
IEC 60938-2-2, Fixed inductors for electromagnetic interference suppression – Part 2-2: Blank detail specification – Inductors for which safety tests are required (only)
CISPR 1 7, Methods of measurement of the suppression characteristics of passive EMC filtering devices
ISO 80000-6, Quantities and units – Part 6: Electromagnetism.IEC 60938-2 pdf download.