IEC 60684-3-409:1999

Overview

IEC 60684-3-409:1999 is an international standard specifying the requirements for flexible insulating sleeving made from E-type glass textile in a braided construction coated continuously with a polyurethane (PUR)-based material. This sleeving features a thermal index of 155, indicating its capability to withstand temperatures up to 155 °C. Part of the broader IEC 60684 series on flexible insulating sleeving, this standard provides detailed specifications for individual sleeving types, focusing in this case on glass textile sleeves with a PUR coating.

The standard targets manufacturers and users involved in electrical insulation applications where reliable protection, durability, and thermal resistance are critical. It lays down dimensional, physical, and performance requirements that ensure consistent quality and safety across products complying with this specification.

Key Topics

• Material Construction: Specifies E-type glass textile sleeving with a braided weave and continuous polyurethane-based coating for enhanced durability and flexibility.
• Thermal Index: Rated at 155, ensuring performance in environments with elevated temperatures.
• Dimensional Specifications:
  • Internal diameters typically ranging from 0.5 mm to 30 mm.
  • Defined tolerances for diameter and wall thickness.
• Color Options: Standard colors include black, blue, brown, green, grey, natural, pink, red, violet, white, yellow, and green-yellow. The sleeving or individual yarns may be colored.
• Designation System: Sleeving is identified in a consistent format incorporating the IEC publication number, part, sheet, nominal size, tolerance type, wall thickness, and color coding as per IEC 60757.
• Testing and Qualification: Sleeve products are qualified based on tests conducted generally on black, 10 mm diameter sleeving, adhering to the specified performance levels.
• Normative References: Referenced standards include IEC 60684-1 for definitions and general requirements, IEC 60684-2 for test methods, and IEC 60757 for color codes.

Applications

IEC 60684-3-409 flexible insulated glass textile sleeving with PUR coating is ideal for a variety of electrical and electronic applications that require:

• Heat-resistant insulation for wiring and components exposed to high temperatures.
• Mechanical protection against abrasion and environmental damage owing to the robust glass textile construction and protective PUR coating.
• Flexible sleeving solutions for harnesses, motors, transformers, and electrical assemblies in industrial machinery and automotive sectors.
• Electrical insulation where UV resistance, chemical resistance, and dimensional stability are critical.
• Custom-sized and color-coded sleeving options facilitate easy identification and adaptation to specific system requirements.

Related Standards

This specification forms part of the IEC 60684 series, linked closely with:

• IEC 60684-1: Definitions and general requirements for flexible insulating sleeving, providing foundational terms and criteria.
• IEC 60684-2: Test methods for determining sleeving properties such as thermal endurance, electrical characteristics, and mechanical resistance.
• IEC 60757: Code for designation of colors, crucial for standardizing sleeving color identification across applications.
• Other sheets within IEC 60684-3 series which address specifications for different types of sleeving materials and coatings.

Keywords: IEC 60684-3-409, flexible insulating sleeving, glass textile sleeving, polyurethane coating, PUR-based coating, thermal index 155, electrical insulation materials, braided sleeving, high temperature insulation, flexible sleeving standard, IEC standards.