Overview

IEC 60317-74:2018 (consolidated with AMD1:2024) specifies requirements for polyesterimide enamelled rectangular aluminium wire, class 180 - a type of insulated wires used for windings. The standard covers rectangular aluminium conductors with a single (sole) polyesterimide-based enamel coating. Modified polyesterimide formulations are permitted provided the chemical identity is retained and all wire requirements are met. Wires of grade 1 and grade 2 are included.

Key dimensional limits:

Width: 2.0 mm to 16.0 mm
Thickness: 0.80 mm to 5.60 mm

IEC 60317-74 is intended to be used together with IEC 60317-0-9:2015 (general requirements for enamelled rectangular aluminium wire) and references IEC test-methods series (IEC 60851).

Key topics and requirements

The standard defines technical requirements and references for testing, including:

Thermal class: Class 180 - minimum temperature index 180 °C.
Heat shock: Minimum heat shock temperature 200 °C.
Electrical and mechanical properties: Dimensions, electrical resistance, elongation, flexibility, adherence and continuity as referenced from IEC 60317-0-9.
Dielectric and insulation tests: Breakdown voltage requirements (elevated temperature test at 180 °C) and other insulation checks as applicable.
Scope of tests: Several tests are declared inappropriate for this wire type (e.g., cut-through, some abrasion and solderability tests), while other tests are under consideration (e.g., dielectric dissipation factor, resistance to transformer oil).
Packaging: Packaging requirements refer back to IEC 60317-0-9 and IEC 60264 series.

Note: Where IEC 60317-0-9 and IEC 60317-74 conflict, the specific provisions of IEC 60317-74 take precedence.

Applications and who uses this standard

IEC 60317-74 applies where rectangular aluminium enamelled wire is specified for windings in electrical equipment. Typical applications:

Low- to medium-voltage transformers, inductors and chokes
Electric motors and generators where aluminium rectangular conductors are chosen for form factor or weight advantages
Custom coils and wound components with thermal-class 180 requirements

Primary users:

Wire and enamel manufacturers (product specification & quality control)
Motor, transformer and coil designers (material selection)
Test laboratories and conformity assessors (type and production testing)
Procurement and standards compliance teams

Related standards

IEC 60317-0-9:2015 (+AMD1:2024) - General requirements for enamelled rectangular aluminium wire
IEC 60851 series - Winding wires - Test methods
IEC 60264 series - Packaging of winding wires

Keywords: IEC 60317-74:2018, polyesterimide enamelled rectangular aluminium wire, class 180, insulated wires used for windings, aluminium winding wire, temperature index 180.

Overview

Key dimensional limits:

Width: 2.0 mm to 16.0 mm
Thickness: 0.80 mm to 5.60 mm

IEC 60317-74 is intended to be used together with IEC 60317-0-9:2015 (general requirements for enamelled rectangular aluminium wire) and references IEC test-methods series (IEC 60851).

Key topics and requirements

The standard defines technical requirements and references for testing, including:

Thermal class: Class 180 - minimum temperature index 180 °C.
Heat shock: Minimum heat shock temperature 200 °C.
Electrical and mechanical properties: Dimensions, electrical resistance, elongation, flexibility, adherence and continuity as referenced from IEC 60317-0-9.
Dielectric and insulation tests: Breakdown voltage requirements (elevated temperature test at 180 °C) and other insulation checks as applicable.
Scope of tests: Several tests are declared inappropriate for this wire type (e.g., cut-through, some abrasion and solderability tests), while other tests are under consideration (e.g., dielectric dissipation factor, resistance to transformer oil).
Packaging: Packaging requirements refer back to IEC 60317-0-9 and IEC 60264 series.

Note: Where IEC 60317-0-9 and IEC 60317-74 conflict, the specific provisions of IEC 60317-74 take precedence.

Applications and who uses this standard

IEC 60317-74 applies where rectangular aluminium enamelled wire is specified for windings in electrical equipment. Typical applications:

Low- to medium-voltage transformers, inductors and chokes
Electric motors and generators where aluminium rectangular conductors are chosen for form factor or weight advantages
Custom coils and wound components with thermal-class 180 requirements

Primary users:

Wire and enamel manufacturers (product specification & quality control)
Motor, transformer and coil designers (material selection)
Test laboratories and conformity assessors (type and production testing)
Procurement and standards compliance teams

Related standards

IEC 60317-0-9:2015 (+AMD1:2024) - General requirements for enamelled rectangular aluminium wire
IEC 60851 series - Winding wires - Test methods
IEC 60264 series - Packaging of winding wires

Keywords: IEC 60317-74:2018, polyesterimide enamelled rectangular aluminium wire, class 180, insulated wires used for windings, aluminium winding wire, temperature index 180.

IEC 60317-74:2018 PDF

Технические детали

Abstract

Overview

Key topics and requirements

Applications and who uses this standard

Related standards

Похожие стандарты

Abstract

Overview

Key topics and requirements

Applications and who uses this standard

Related standards

Похожие стандарты

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