EN 61479:2001/A1:2002

Overview

EN 61479:2001/A1:2002 is a European standard developed by CLC (European Committee for Electrotechnical Standardization) that specifies requirements for flexible conductor covers (line hoses) made of insulating material used during live working on electrical installations. This amendment A1 to the original EN 61479:2001 standard enhances safety provisions and marking requirements to ensure effective protection against electrical shock when working on energized lines.

The standard aligns with the International Electrotechnical Commission's IEC 61479:2001/A1:2002 and applies throughout CENELEC member countries. It establishes uniform specifications for insulating flexible covers that provide electrical insulation for conductors or cables under voltage, safeguarding workers during live maintenance activities.

Key Topics

• Scope and Purpose
  EN 61479/A1 defines the characteristics, testing, quality, and labeling requirements of insulating line hoses which protect live conductors from accidental contact. It aims to reduce electrical hazards during energized work and increase safety compliance across Europe.

• Material and Construction
  The standard emphasizes the use of durable insulating materials flexible enough to cover conductors without damage while maintaining high dielectric strength.

• Marking and Identification
  Updated marking requirements include:

  • IEC graphical symbol IEC-60417-5216 (double triangle) indicating suitability for live working
  • Reference to the IEC standard number
  • Manufacturer’s name or trademark
  • Classification and category details
  • Month and year of manufacture
  • Size (diameter) of the hose

• Testing and Compliance
  The amendment mandates rigorous electrical and mechanical testing to verify that the flexible conductor covers meet international safety criteria for insulation and durability.

• Regulatory Implementation Dates
  National adoption of the amendment was required by April 1, 2003, with conflicting older standards withdrawn by July 1, 2005, ensuring harmonized application.

Applications

• Live Electrical Maintenance
  These flexible insulating covers are primarily used by electrical utility workers and technicians conducting maintenance or repairs on live overhead or underground power lines.

• Safety in Electrical Installations
  The line hoses provide an additional layer of protection, minimizing risks of electric shock and arc flash incidents during live working conditions.

• Industrial and Utility Environments
  Applicable in power generation stations, distribution networks, substations, and industrial complexes where live electrical work is routine.

• Training and Safety Protocols
  Compliance with EN 61479/A1 supports worker training programs focused on safe live working techniques and use of appropriate insulating equipment.

Related Standards

• IEC 60417 Series – For graphical symbols used on electrical equipment including the double triangle symbol indicating suitability for live working.

• IEC 61479:2001 – The base international standard on flexible conductor covers, upon which EN 61479 and Amendment A1 are founded.

• Other Live Working Standards
  Standards concerning insulated gloves, dielectric blankets, and protective tools complement the safety equipment covered by EN 61479/A1.

By adhering to EN 61479:2001/A1:2002, organizations enhance electrical safety during live working through standardized, tested flexible conductor covers that reduce risk and protect personnel. This ensures compliance with European and international electrotechnical safety requirements while facilitating safe, reliable electrical maintenance operations.