IEC 60227-3:2024

Overview

IEC 60227-3:2024 - Polyvinyl chloride insulated cables of rated voltages up to and including 450/750 V - Part 3: Non-sheathed cables for fixed wiring - is the 2024 edition of the International Electrotechnical Commission standard that specifies particular requirements for PVC insulated single-core non-sheathed cables used in fixed wiring applications. This Part 3 standard is intended to be used together with IEC 60227-1 (general requirements) and refers to test methods described in IEC 63294 (replacing the withdrawn IEC 60227-2).

Key Topics and Technical Requirements

• Scope and applicability: Covers single-core, PVC insulated, non-sheathed cables for rated voltages up to and including 450/750 V for fixed wiring.
• Cable types and conductor forms: Defines requirements for cables with rigid, flexible, and solid conductors, and variants designed for conductor temperatures of 70 °C and 90 °C.
• Code designation and rated voltage: Prescribes standard code designations and how rated voltages are indicated.
• Construction requirements:
  • Conductors: specifications for conductor construction and material classes.
  • Insulation: PVC insulation properties and dimensional requirements.
  • Overall diameter: criteria for maximum/minimum dimensional limits.
• Testing and conformity: Lists required tests for each cable type (reference tables for general data and required tests), with test procedures aligned to IEC 63294.
• Guidance on use: Practical recommendations for application and installation of non-sheathed fixed wiring cables.
• Normative references: Updated references used by the standard; note that IEC 60227-2 has been superseded by IEC 63294.

Practical Applications and Users

Who uses IEC 60227-3:2024:

• Cable manufacturers designing and certifying PVC insulated non-sheathed single-core cables.
• Electrical engineers and specifiers selecting cables for building wiring, internal wiring and fixed installations.
• Installers and contractors who need guidance on cable type suitability and rated temperature classes (70 °C, 90 °C).
• Regulatory bodies, procurement teams and testing laboratories performing conformity assessment and type-testing according to IEC 63294.

Typical applications:

• Fixed wiring in residential, commercial and industrial buildings where PVC insulated single-core non-sheathed cables are suitable for the specified voltage and temperature ratings.

Related Standards

• IEC 60227-1 - General requirements for PVC insulated cables (must be used together with Part 3).
• IEC 63294 - Test methods referenced by the IEC 60227 series (replaces IEC 60227-2).
• Other parts of the IEC 60227 series cover sheathed cables, flexible cords, lift cables and multi-conductor flexible cables.

Keywords: IEC 60227-3:2024, PVC insulated cables, non-sheathed cables, fixed wiring, 450/750 V, cable standards, conductor temperature 70°C 90°C, IEC 63294.