Application

The cables are designed for provide circuit integrity for safety lightning, smoke extraction, ventilation, emergency telephone and exits during fi re for underground railways.

Standard

• RATP K27 specifi cation
• Fire resistant: class CR1
• No fi re propagation: class C1 RATP (<30cm)

Cable Construction

• Electrical Characteristics at 20℃Conductors: Class 1 solid conductor from 1.5mm to 4mm; class 2 stranded conductor for 6mm.
• Insulation: Silicone rubber insulation.
• Stranding: Cores are helically stranded in concentric layers.
• Inner Sheath: LSZH.
• Armour: Two layers of steel tape.
• Outer Sheath: LSZH.

Mechanical and Thermal Properties

• Minimum Bending Radius: 5×OD (static); 10×OD (dynamic)
• Temperature Range: -10℃ to +90℃ (during operation); -10℃ to +60℃ (during installation)

Dimensions and Weight