IEC 60245-1:2026

Overview

IEC 60245-1:2026 establishes the general requirements for rubber insulated cables with rated voltages up to and including 450/750 V. Published by the International Electrotechnical Commission (IEC), this international standard applies to both rigid and flexible cables with insulation-and, where applicable, sheath-based on vulcanized rubber. These cables are intended for use in power installations where the nominal voltage does not exceed 450/750 V AC.

This latest (fifth) edition introduces several technical updates, such as replacing previous references for test methods and updating normative references, to ensure continued reliability and alignment with evolving international best practices for low voltage rubber insulated cables.

Key Topics

• Scope: Covers cables with vulcanized rubber insulation, used in residential, commercial, and light industrial power installations with voltages up to 450/750 V.
• Cable Types: Relates to a variety of cable types, such as those for heat resistance, flexible cords, arc welding, and special flexible applications, as referenced in related IEC 60245 parts.
• Marking and Identification: Specifies requirements for durable, clear manufacturer marking, as well as core identification by color or numbers-critical for installation safety.
• Construction: Details on conductor materials, insulation, fillers, textile braids, and sheaths, emphasizing robustness, durability, and compliance with standard test methods.
• Test Methods: Incorporates reference to IEC 63294 for cable testing and to relevant parts of IEC 60811 for non-metallic component testing, ensuring rigorous product assessment.
• Mechanical and Electrical Properties: Sets requirements for tensile strength, elongation at break, resistance, insulation thickness, and durability both before and after aging.
• Updates in 2026 Edition:
  • Replacement of IEC 60245-2 test references with IEC 63294.
  • Removal of references to lift cables previously covered under IEC 60245-5.
  • Comprehensive update of normative references to reflect current standards and practices.

Applications

IEC 60245-1:2026 is integral in the manufacturing, selection, and installation of rubber insulated cables for low voltage power distribution. Key practical applications include:

• Construction and Building Wiring: Ensures safe, compliant cabling solutions in fixed electrical systems for homes, offices, and light industry environments.
• Machinery and Portable Tools: Guides selection of flexible, robust cables suitable for demanding industrial settings and portable devices.
• Arc Welding and Special Environments: Underpins requirements for cables used in specialized scenarios, thereby supporting manufacturers in producing cables for challenging operational environments.
• Quality Control & Certification: Provides benchmarks for testing, inspection, and certification of cable products in line with international norms, facilitating trade and safety verification.

By adhering to the requirements specified in IEC 60245-1:2026, manufacturers, installers, and inspection bodies ensure electrical safety, regulatory compliance, and product reliability across a broad spectrum of use cases involving rubber insulated cables.

Related Standards

To support comprehensive understanding and correct application, IEC 60245-1:2026 should be used in conjunction with the following related standards:

• IEC 60245-3: Rubber insulated cables - Heat resistant silicone insulated cables
• IEC 60245-4: Rubber insulated cables - Cords and flexible cables
• IEC 60245-6: Rubber insulated cables - Arc welding electrode cables
• IEC 60245-7: Rubber insulated cables - Heat resistant ethylene-vinyl acetate rubber insulated cables
• IEC 60245-8: Rubber insulated cables - Cords for applications requiring high flexibility
• IEC 60228: Conductors of insulated cables
• IEC 60811 Series: Testing methods for non-metallic cable components
• IEC 63294: Test methods for cables with rated voltage up to 450/750 V
• IEC 62440: Guide to the use for cables with rated voltage not exceeding 450/750 V

Understanding and applying IEC 60245-1:2026, along with its associated standards, is essential for safe, efficient, and compliant use of low voltage rubber insulated cables in global electrical installations.