XLPE Insulated, LSZH Sheathed, Individual and Overall Screened Instrumentation Cables (Multi-triple)

Application

This EN50288-7 unarmoured instrumentation cable is designed for the transmission of analogue and digital signals in instrument and control systems. It is widely used in chemical and petrochemical facilities, power plants, and oil & gas processing environments.

The Low Smoke Zero Halogen (LSZH) sheath ensures that no corrosive gases are emitted during fire, significantly limiting flame propagation and producing minimal smoke—making it ideal for safety-critical installations. When supplied with a blue outer sheath, the cable is suitable for use in intrinsically safe systems.

This cable is not intended for direct connection to low-impedance power sources such as public mains, and it is not recommended for direct burial. It is suitable for indoor and outdoor installation in dry or wet conditions, and may be laid on cable trays, racks, or in protective conduits.

Standards

Basic design to EN 50288-7

Fire Performance

Note: Asterisk * denotes superseded standard, ** denotes Test temperature +60°C, duration 4h. Retention: min 60% of tensile strength/min.60% of elongation, *** denotes optional.

Voltage Rating

300V

Cable Construction

Conductor : Annealed copper solid or plain copper stranded to IEC 60228 Class 2.

Insulation : Extruded cross-linked XLPE compound, EN 50290. 2-29.

Individual Screen : Aluminium/polyester tape is applied over each pair metallic side down in contact with tinned copper drain wire, 0.5mm²

Triple : Three conductors twisted to form a triple

**TiMF Construction : Polyester tape above the triple, AL-PES tape over solid tinned copper drain wire, 0.60 mm

Lay-up : TiMF laid up in layers of optimum pitch

Separator : Polyester tape

Overall Screen : Aluminium/polyester tape with tinned copper drain wire, 0.5mm²

Outer Sheath : Thermoplastic LSZH compound type LTS3 as per BS 7655-6.1 (Thermosetting LSZH compound typeSW2-SW4 as per BS 7655-2.6 can be offered.). UV resistance, hydrocarbon resistance, oil resistance, anti rodent andanti termite properties can be offered as option.

Colour Code

Insulation : Black / White / Red, continuously numbered on white core(1, 2..)for multitriples.

Outer Sheath : Black or blue for intrinsically safe systems

Physical and Thermal Properties

Temperature Range During Operation (Fixed State) : -30°C – +70°C

Temperature Range During Installation (Mobile State) : -5°C – +50°C

Minimum Bending Radius : 7.5 × Overall Diameter

Electrical Roperties

Construction Parameterst