IEC 60684-3-151:1998

Overview

IEC 60684-3-151:1998 is an international standard developed by the International Electrotechnical Commission (IEC) specifying requirements for flexible insulating sleeving made from extruded blends of polyvinyl chloride (PVC) and acrylonitrile elastomers (nitrile rubber) for general-purpose applications. This standard focuses on non-heat-shrinkable sleeving, with typical internal diameters up to 25 mm and availability in a wide range of opaque colours. The standard defines performance requirements, methods of designation, and testing criteria for these insulating sleeves, supporting consistent quality and safety in electrical insulation.

Key Topics

• Material Composition: Specifies sleeving extruded from a blend of PVC and acrylonitrile elastomers, combining flexibility and electrical insulation properties.
• Non-Heat-Shrinkable: Applies to sleeving that retains its form and does not shrink under heat.
• Dimensions and Tolerances: Details nominal and actual measurements for internal diameter and wall thickness, ensuring accurate fit and performance.
• Colour Coding: Addresses standard opaque colours including black, brown, red, orange, yellow, green, blue, violet, grey, white, pink, and green/yellow, following IEC 60304 and IEC 60757 where applicable.
• Performance Requirements: Includes mechanical properties (such as tensile strength, elongation, flexibility at low temperatures), electrical properties (such as breakdown voltage and volume resistivity), and resistance to environmental factors (like ozone and ultraviolet exposure).
• Product Qualification: Specifies testing mainly on black sleeving of 10 mm internal diameter, with requirements for colour fastness and performance consistency across different colours.

Applications

PVC/nitrile rubber extruded flexible insulating sleeving specified by IEC 60684-3-151:1998 is widely used in:

• Electrical Equipment: Providing insulation for wiring, terminals, connectors, and components in low-voltage electrical systems.
• Cable Harnessing: Organizing and protecting groups of wires in electronics, appliance manufacturing, automotive assemblies, and industrial control panels.
• Maintenance and Repair: Quick, reliable solution for insulating or bundling wires during equipment upgrades, repairs, and prototyping.
• General Insulation: Suitable wherever flexible, durable, and color-coded electrical insulation is required, especially where heat-shrink properties are unnecessary.

This sleeving supports safe operation, identification, and long-term durability of wiring systems across diverse industries due to its robust mechanical and electrical performance.

Related Standards

For comprehensive application and understanding, IEC 60684-3-151:1998 should be considered alongside the following related international standards:

• IEC 60684-1: Definitions and general requirements for flexible insulating sleeving.
• IEC 60684-2: Standard test methods for evaluating performance characteristics.
• IEC 60304: Standard colours for insulation for low-frequency cables and wires, supporting consistent colour coding.
• IEC 60757: Codes for colour designation, critical to accurate product identification.

These references ensure proper selection, testing, application, and identification of flexible insulating sleeving in all compliant electrical projects.

Keywords: IEC 60684-3-151, flexible insulating sleeving, PVC/nitrile rubber sleeving, electrical insulation, non-heat-shrinkable, cable insulation, colour coding, IEC standards, electrical safety, wire management.