EN IEC 60317-73:2018/A1:2024

• Status: Published
• Publication Date: 01-Aug-2024
• ICS: 29.060.10 - Wires
• Technical Committee: CLC/TC 55 - Winding wires
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 02-Aug-2024
• Due Date: 29-Dec-2023
• Completion Date: 02-Aug-2024
• Ref Project: SIST EN IEC 60317-73:2018/A1:2024 - Specifications for particular types of winding wires - Part 73: Polyester or polyesterimide overcoated with polyamide-imide enamelled rectangular aluminium wire, class 200 (IEC 60317-73:2018/AMD1:2024)

• Refers: EN 60317-0-9:2015/A1:2024 - Specifications for particular types of winding wires - Part 0-9: General requirements - Enamelled rectangular aluminium wire
• Effective Date: 03-Feb-2026
• Refers: EN 60317-0-9:2015 - Specifications for particular types of winding wires - Part 0-9: General requirements - Enamelled rectangular aluminium wire
• Effective Date: 03-Feb-2026
• Amends: EN IEC 60317-73:2018 - Specifications for particular types of winding wires - Part 73: Polyester or polyesterimide overcoated with polyamide-imide enamelled rectangular aluminium wire, class 200
• Effective Date: 14-Feb-2023

Overview

EN IEC 60317-73:2018/A1:2024 is a critical European standard specifying the technical requirements for rectangular aluminium winding wires coated with a polyester or polyesterimide enamel and overcoated with polyamide-imide. Classified as Class 200, this standard is part 73 of the IEC 60317 series dedicated to particular types of winding wires.

This amendment, approved in 2024, updates the original 2018 standard, ensuring harmonized specifications aligned with the latest industrial and technological advancements. It is essential for manufacturers, designers, and users of enamelled aluminium wires, particularly in electrical and electromechanical applications.

Key Topics

• Material Specifications: Defines the physical and chemical properties of the aluminium wire, including dimensional tolerances and composition.
• Enamel Coating: Covers the use of polyester or polyesterimide enamel coatings over the aluminium base for insulation and protection.
• Polyamide-imide Overcoat: Specifies an additional protective layer which enhances mechanical strength, thermal endurance, and chemical resistance.
• Class 200 Performance: Ensures the wire meets the thermal class 200 requirements, suitable for high-temperature electrical applications.
• Testing Methods: Refers to IEC 60317-0-9:2015 and its 2024 amendment for testing procedures, including insulation resistance, overall electrical resistance, and physical properties.
• Electrical Standards Compliance: Incorporates updated international and European normative references and removes obsolete test approaches (e.g., springiness testing deemed inappropriate).

Applications

This standard is highly relevant for:

• Electrical Engineering: Manufacturing of coils, transformers, motors, and inductors requiring durable and thermally stable aluminium winding wires.
• Electromechanical Devices: Components exposed to thermal and mechanical stresses where the enhanced coating system ensures longevity.
• Energy Sector: Use in power distribution equipment and renewable energy systems where efficient insulation and wire performance are crucial.
• Automotive and Aerospace: Winding wires used in applications demanding stringent thermal and electrical performance under harsh environments.
• Electronic Manufacturing: Precision applications requiring compliance with international standards for quality assurance and interoperability.

Utilizing EN IEC 60317-73:2018/A1:2024 ensures winding wire products meet stringent European and international quality benchmarks, contributing to enhanced safety, reliability, and efficiency of electrical apparatus.

Related Standards

• IEC 60317-0-9:2015 and Amendment 1:2024: General requirements and testing methods for enamelled rectangular aluminium wire, which this standard references for foundational testing and quality assurance.
• EN IEC 60317 Series: Comprising multiple parts, each outlining specifications for various winding wire types with differing coatings and materials.
• CENELEC Internal Regulations: Governing the adoption, publication, and withdrawal of harmonized standards in the European market.
• Relevant IEC and ISO directives defining standardization processes and documentation methods.

Practical Value

Adopting EN IEC 60317-73:2018/A1:2024 allows manufacturers and end-users to:

• Ensure materials comply with internationally recognized quality and safety standards.
• Guarantee consistent thermal performance and mechanical durability through the use of polyester or polyesterimide coatings combined with polyamide-imide overcoatings.
• Benefit from a clear framework for testing and certification, reducing product liability and increasing market access.
• Achieve environmental and operational reliability in demanding electrical and mechanical applications.
• Facilitate cross-border trade across Europe by adhering to harmonized requirements accepted by all CENELEC member countries.

For industries utilizing aluminium winding wires with enhanced enamel coatings, EN IEC 60317-73:2018/A1:2024 represents an essential reference to maintain engineering excellence and compliance.