• Single or Dual Wall Construction
• Ultra Light Weight
• Small Diameter due to very precisely extruded cross-linked ETFE coat
• Resistant to electrical arc tracking in wet or dry conditions
• Exceptional chemical resistance
• Space and weight saving

SPEC 55 wire is insulated with modified radiation cross-linked ETFE polymer. It has a temperature rating of -65°C to 200°C [-85°F to 392°F] continuous using a silver plated copper conductor, and combines the easy handling of a flexible wire with excellent scrape abrasion and cut-through characteristics.

Chosen for its balance of properties, SPEC 55 wire has outstanding resistance to chemicals and solvents, excellent electrical arc track resistance, and is not susceptible to UV and moisture degradation.

Both single and dual wall insulated wires are available in twisted pairs, triples, etc., and as shielded and jacketed cables. SPEC 55 wire provides one of the most comprehensive wiring product ranges for aerospace users, with a wide choice of conductor sizes and insulation wall thicknesses. The dual wall airframe wire has an insulation wall thickness of either 0.2 [.008] or 0.25 [.010] for robustness in unprotected harnesses and has excellent wire to wire abrasion properties. The single wall equipment wire has a 0.15 [.006] wall thickness for use inside equipment and protected harnesses.

Specifications / Approvals

• SAE AS22759/32-35 and /41 to /46 and NEMA-WC-27500 (Cables)
• Defense Standard 61-12 Part 33 Issue 5
• Part 1001 and Part 1002
• VDE 9426, 9427, 9428
• British Standard 3G233
• Boeing BMS 13-48
• Airbus ABS 0820 to 0826
• NASA preferred product list
• European Space Agency 3901/012, 3901/020 and 3901/022
• TE Specification 55
• Civil Aviation Authority Accessory Approval E11623