Overview
IEC 60317-82:2020 defines requirements for polyesterimide enamelled rectangular copper wire, class 200, used as winding wire in electrical equipment. The standard covers wires with a sole enamel coating based on polyesterimide resin (modifications allowed only if the chemical identity is retained and all wire requirements are met). It specifies dimensional ranges, thermal performance, and applicable tests for enamelled rectangular conductors intended for windings.
Key search terms: IEC 60317-82, polyesterimide enamelled rectangular copper wire, class 200, winding wires, enamelled rectangular wire, temperature index 200.
Key Topics and Requirements
- Coating type: Sole coating based on polyesterimide resin; modified resins permitted if chemical identity is retained and requirements are met.
- Thermal class: Class 200 - minimum temperature index 200 and minimum heat shock temperature 220 °C.
- Conductor dimensions: Nominal widths from 2.0 mm to 16.0 mm and thicknesses from 0.80 mm to 5.60 mm. Applicable width/thickness combinations and ratios referenced in IEC 60317-0-2.
- Grades included: Both grade 1 and grade 2 wires are specified and apply across the full conductor range.
- Test coverage (as applied):
- Electrical resistance, elongation (proof strength per ISO 6892-1 where agreed), springiness, flexibility and adherence, cut‑through.
- Breakdown voltage testing at an elevated temperature of 200 °C.
- Resistance to solvents and other physical/chemical evaluation as referenced.
- Tests marked inappropriate for this part include: resistance to abrasion, continuity of insulation, resistance to refrigerants, solderability, heat/solvent bonding, dielectric dissipation factor, resistance to transformer oil (test under consideration), loss of mass, pin hole test.
- Packaging: Clause 30 of IEC 60317-0-2 applies.
Applications and Who Uses This Standard
- Intended for manufacturers and suppliers of enamelled rectangular copper winding wire.
- Used by electrical designers and OEMs specifying winding materials for motors, transformers, inductors and other electrical equipment requiring class 200 thermal performance and compact rectangular conductors.
- Relevant to quality and test laboratories, procurement specialists, and certification bodies verifying compliance with IEC winding‑wire requirements.
Related Standards
- IEC 60317-0-2:2020 - General requirements for enamelled rectangular copper wire
- IEC 60851 series - Winding wires - Test methods
- IEC 60264 series - Packaging of winding wires
- ISO 6892-1 - Tensile testing (reference for copper proof strength)
IEC 60317-82 is part of the IEC 60317 series and should be used together with the referenced test-method and general requirement documents for correct application and compliance.