IEC 60317-48:2012 defines requirements for specifications for particular types of winding wires, focusing on glass-fibre wound resin or varnish impregnated, bare or enamelled round copper wire with a temperature index of 155. For engineering teams, laboratories, and procurement groups, it serves as a practical reference when evaluating wire construction and suitability for electrical equipment that depends on consistent insulation and thermal performance. IEC 60317-48:2012 supports documented evaluation, technical review, and conformity assessment in winding wire selection and qualification workflows.

What is IEC 60317-48:2012?

This document is part of the IEC series covering particular types of winding wires and sets out the technical basis for a specific copper wire construction using glass-fibre winding with resin or varnish impregnation. Its scope is directly relevant to manufacturers and users who need a compliance reference for round copper wire intended for coils, windings, and related electrical assemblies. The title indicates a defined temperature index of 155, which is important for technical validation, quality workflows, and controlled material selection.

Applications of IEC 60317-48:2012

IEC 60317-48:2012 is commonly used in the specification and assessment of winding wire for electrical components that require stable insulation performance under thermal stress. Typical application areas may include motors, transformers, inductors, and other wound assemblies where operational consistency matters. It is also useful in testing workflows, supplier qualification, and engineering documentation when teams need to compare product offerings against a clear technical reference during procurement or laboratory evaluation.

Why is IEC 60317-48:2012 important?

This document matters because winding wire selection can affect safety, durability, and long-term performance in electrical equipment. Using a defined technical reference helps reduce risk during design verification, supports reproducible testing practices, and improves confidence in conformity assessment. For organizations involved in compliance preparation or product evaluation, it can clarify what to check during incoming inspection, qualification, and specification review, especially where thermal class and construction details must align with internal requirements.

• Reference point for glass-fibre wound, resin- or varnish-impregnated round copper winding wire
• Supports technical assessment of insulation construction and thermal class expectations
• Useful for procurement review, supplier comparison, and engineering documentation control
• Helps structure verification activities in laboratory and production testing workflows