IEC 60684-3-214:2013

Overview

IEC 60684-3-214:2013 is an international standard specifying requirements for flexible insulating sleeving, focusing on heat-shrinkable, polyolefin sleeving that is not flame retarded, with thick and medium wall constructions. This standard, issued by the International Electrotechnical Commission (IEC), addresses two main types of sleeving-medium wall (Type A) and thick wall (Type B)-with nominal shrink ratios of 3:1 and suitability for use at temperatures up to 100 °C. The sleeving is typically black and available in a broad range of sizes with diameters up to 200 mm.

This third edition aligns with IEC 60684-3-247 (dual wall) standards to ensure material consistency and expands on performance requirements compared to the 2005 edition. It serves as a critical guideline for manufacturers and users in designing, selecting, and applying heat-shrinkable polyolefin sleeving in electrical insulation and protection.

Key Topics

• Types of Sleeving:

  • Type A: Medium wall sleeving; internal diameter up to approximately 200 mm.
  • Type B: Thick wall sleeving; internal diameter also up to approximately 200 mm.

• Material Specifications:

  • Heat-shrinkable polyolefin material.
  • Not flame retarded.
  • Nominal shrink ratio of 3:1.
  • Carbon black content minimum 2.5% for UV protection.
  • Typically black in color.

• Performance Requirements:

  • Suitable for operating temperatures up to 100 °C.
  • Mechanical properties including tensile strength (minimum 10 MPa), elongation at break, and secant modulus.
  • Heat shock resistance at 200 °C with retention of mechanical properties.
  • Electrical properties such as breakdown voltage, volume resistivity, and dielectric strength.
  • Resistance to bending at low temperature (-20 °C) without cracking.
  • Dimensional stability and low water absorption (maximum 0.5%).

• Testing and Conformance:

  • Shrink process parameters standardised-typically oven shrink at 200 °C for 10 minutes.
  • Compliance testing based on typical sizes identified by recovered internal diameter.
  • Requirements detailed through comprehensive tests including heat ageing, fluid resistance, and color fastness to light.

• Designation and Identification:

  • Sleeving products designated with specific codes indicating type, size (expanded/recovered internal diameter), and color, consistent with IEC color code standards.

Applications

IEC 60684-3-214 compliant heat-shrinkable polyolefin sleeving is primarily used in electrical and electronic industries for:

• Wire and Cable Protection:

  • Insulating and protecting wiring harnesses, cables, and connectors against abrasion, moisture, and environmental factors.

• Mechanical Reinforcement:

  • Providing enhanced mechanical strength to cables and components while maintaining flexibility.

• Electrical Insulation:

  • Ensuring safe insulation at operating temperatures up to 100 °C, meeting electrical breakdown and resistivity standards.

• Environmental Sealing:

  • Protection against ingress of fluids and environmental contaminants, based on resistance to specified fluids and low water absorption.

• Industrial Equipment and Automotive:

  • Application in automotive wiring, switchgear, transformers, and electrical devices requiring robust and reliable insulation sleeving.

Related Standards

• IEC 60684-1: Definitions and general requirements for flexible insulating sleeving.
• IEC 60684-2: Test methods for flexible insulating sleeving to verify performance and durability.
• IEC 60684-3-247: Specifications for dual-wall heat-shrinkable sleeving, relevant here for material alignment.
• IEC 60296: Standards for fluids used in electrotechnical applications, linked for material compatibility.
• IEC 60757: Code for designation of colors used in sleeving products.
• ISO 868: Determination of indentation hardness for evaluation of material stiffness.
• ISO 11358: Thermogravimetry of polymers, related to material composition analysis.

Keywords: IEC 60684-3-214, heat-shrinkable sleeving, polyolefin sleeving, insulating sleeving, electrical insulation, flexible sleeving, medium wall sleeving, thick wall sleeving, heat-shrink tubing, electrical standards, cable protection, non-flame retardant sleeving, electrical cable sleeving.