IEC 60938-2:2021 pdf download.Fixed inductors for electromagnetic interference suppression
1 Scope
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 1500 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 60068-2-13, Environmental testing- Part 2-13: Tests - Test M: Low air pressure
IEC 60068-2-14, Environmental testing- Part 2-14: Tests - Test N: Change of temperature
IEC 60068-2-17, 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一Part 2-45: Tests 一Test XA and guidance: Immersion in cleaning solvents
IEC 60317-0-7，Specifications for particular types of winding wires 一Part 0-7: General requirements - Fully insulated (FIW) zero-defect enamelled round copper wire
IEC 60317-56, Specifications for particular types of winding wires 一Part 56: Solderable fully insulated (FIW) zero-defect polyurethane enamelled round copper wire, class 180
IEC 60335-1，Household and similar electrical appliances 一Safety 一Part 1: General requirements
IEC 60617, Graphical symbols for diagrams (available at http://std.iec.ch/iec60617)
IEC 60664-1, Insulation coordination for equipment within low-voltage supply systems- Part 1:Principles, requirements and tests
IEC 60695-2-11, Fire hazard testing 一Part 2-11: Glowing/hot-wire based test methods一 Glow-wire flammability test method for end-products (GWEPT)
IEC 60695-2-12，Fire hazard testing - Part 2-12: Glowing/hot-wire based test methods - Glow-wire flammability index (GWFI) test method for materials
IEC 60695-2-13, Fire hazard testing - Part 2-13: Glowing/hot-wire based test methods - Glow-wire ignition temperature (GWIT) test method for materials.IEC 60938-2 pdf download.