EN 60684-3-145 to 147:2001

Overview

EN 60684-3-145 to 147:2001 is a European standard published by the CLC (European Committee for Electrotechnical Standardization). It specifies the requirements for flexible insulating sleeving - specifically, three types of non-heat-shrinkable sleeving extruded from polytetrafluoroethylene (PTFE). This standard is essential for manufacturers, suppliers, and end users who need reliable electrical insulation materials that operate under demanding thermal and chemical conditions.

PTFE sleeving covered by this standard is typically available in internal diameters up to 8.53 mm and wall thicknesses between 0.15 mm and 0.51 mm. The standard defines three wall thickness categories: "thin wall," "standard wall," and "thick wall." The requirements for each category differ, particularly regarding electrical breakdown voltage. PTFE sleeving as specified in EN 60684-3-145 to 147:2001 can be used in systems operating at temperatures up to 250 °C, making it suitable for high-performance electrical and electronic applications.

Key Topics

• PTFE Extruded Sleeving: Requirements for using PTFE as an extruded material for non-heat-shrinkable insulating sleeves.
• Wall Thickness Categories: Specifications for thin, standard, and thick wall versions, impacting mechanical strength and electrical properties.
• Dimensional Ranges: Internal diameters up to 8.53 mm and wall thickness from 0.15 mm to 0.51 mm.
• Electrical Insulation Performance: Distinct requirements for electrical breakdown voltage across the three thickness categories.
• Thermal Endurance: Suitability for continuous operation at elevated temperatures, up to 250 °C.
• Application Suitability: Evaluation criteria for selecting sleeving based on the operational environment, mechanical stresses, and required insulation.

Applications

EN 60684-3-145 to 147:2001 is widely referenced in the electrical, electronics, and aerospace industries where PTFE insulating sleeving provides superior resistance to heat, chemicals, and electrical stress. Some practical applications include:

• Electrical Wiring Protection: Insulating and bundling conductors in control panels, switchgear, and industrial machines.
• High-Temperature Environments: Use in motors, generators, aerospace, and harsh industrial settings where sustained exposure to heat is routine.
• Sensitive Electronic Assemblies: Shielding components from moisture, abrasion, and aggressive chemicals in medical, communication, and measurement equipment.
• Wire Harnesses: Creating robust, flexible harnesses for vehicles and aircraft requiring chemical and heat resistance.

The standard supports consistent quality and safety by defining measurable requirements for the construction and performance of PTFE sleeving, ensuring products meet rigorous industry expectations.

Related Standards

For a comprehensive approach to insulating sleeving, consider these related standards:

• EN 60684-1: Flexible insulating sleeving - Part 1: Definitions and general requirements.
• EN 60684-2: Flexible insulating sleeving - Part 2: Methods of test.
• IEC 60684-3 Series: International counterpart covering various individual sleeving types, with PTFE sleeving detailed in sheets 145 to 147.
• EN 60454 Series: Specification for pressure-sensitive adhesive tapes for electrical purposes, often used in conjunction with sleeving solutions.

EN 60684-3-145 to 147:2001 is a key reference for those seeking reliable, high-performance insulation solutions using extruded PTFE sleeving, providing clear guidance for selection, testing, and compliance in demanding applications.