NF F 55-625 (K25) 750V 4x25 B2ca-s1a, d0, a1

Application

 These cables are used for fixed power or lighting installations in tunnels and underground stations.

Fire performance

• Flame retardant: according to RATP K20 specification 
• Fire retardant: according to RATP K20 specification
• Low smoke: according to RATP K20 specification
• Low toxicity: According to RATP K20 specification
• Low corrosivity: According to RATP K20 specification
• Without Halogen : According to RATP K20 specification

Reaction to fire: B2ca-s1a, d0, a1

Design

• Conductor: Bare copper class 1 or 2
• Insulation: Cross-linked Polyethylene (XLPE)
• Assembling: An inner sheath acting as a filler
• Outer sheath: Polyolefin without halogen Colour : black

Core identification

According to NF F 55625
2x: black - blue
3x: black - grey - brown
3G: black - blue - green/yellow
4x: black - blue - brown - black
4G: black - blue - brown - green/yellow
5G: black - blue - brown - black - green/yellow
≥ 7 conductors: black cores printed with numbers with or without green/yellow