SIST EN 2346-002:2009

Overview

EN 2346-002:2006 is a CEN / AECMA aerospace standard that defines the general requirements and common characteristics for fire resistant electrical cables intended for aircraft on‑board electrical systems operating between −65 °C and 260 °C. It establishes material, construction, identification and marking principles and lists related product standards applicable to fire‑resistant or fire‑proof aerospace cabling.

Key topics and technical requirements

• Scope
  • Applies to fire‑resistant/ fire‑proof electrical cables for aircraft on‑board electrical systems at operating temperatures from −65 °C to 260 °C (unless the product standard states otherwise).
• Materials
  • Conductors use nickel‑clad copper alloy for nominal cross sections 0.25 mm² and 0.4 mm², and nickel‑clad copper for nominal cross sections ≥ 0.6 mm².
  • Copper and copper alloy requirements reference IEC 28 and EN 2234 respectively.
• Construction
  • Defines permitted number of cores (single to ten cores) and dimensional/weight factors applied for multi‑core constructions.
  • Colour coding: outer insulation is white with a red stripe to indicate fire‑resistant construction; stripe width specified between 0.3 mm and 0.5 mm to ensure legible UV marking.
  • Multicore cables without jacket: each core must be individually marked.
• Identification & marking
  • Manufacturer marking and designation methods follow EN 2234 and are cross‑referenced with AECMA TR 6058 (shorter cross designation for drawings and marking).
  • Cables must be compatible with use‑applied printing per EN 3838.
• Normative references
  • EN 2234 (technical specification), EN 3475‑100 (test methods), EN 3838 (user‑applied markings), TR 6058 (cable code), IEC 28.

Applications and who uses this standard

• Typical users:
  • Aerospace cable manufacturers and suppliers
  • Aircraft systems designers and OEMs specifying on‑board wiring
  • Procurement, quality and certification engineers responsible for compliance
  • Maintenance and repair organizations managing replacement parts and installations
• Practical application:
  • Use EN 2346‑002 to ensure consistent material selection, construction, marking and documentation for fire‑resistant aircraft cables across design, manufacture and certification activities.

Related standards

• EN 2346‑003 - DL family, single core (product standard)
• EN 2346‑004 - DN family, single UV‑printable & multicore assembly (light weight)
• EN 2346‑005 - DW family, single UV‑printable & multicore assembly (light weight)
• EN 2234, EN 3475‑100, EN 3838, TR 6058, IEC 28

Keywords: EN 2346‑002, aerospace cable, fire resistant cable, aircraft electrical cable, operating temperature −65 °C to 260 °C, cable identification, nickel‑clad copper.