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

Application

Designed for the transmission of analogue and digital signals in instrumentation and control systems, this EN50288-7 armoured cable is widely used in chemical, petrochemical, power generation, and oil & gas facilities. Featuring a Low Smoke Zero Halogen (LSZH) sheath and galvanized steel wire armour, it offers excellent flame retardancy, minimal smoke emission, and mechanical protection in critical environments.

Ideal for indoor and outdoor installations in dry or damp locations—on trays, racks, or in conduits—this cable is suitable for environments where no corrosive gases must be released in the event of fire. The blue LSZH sheath version is specifically designed for intrinsically safe systems. Not suitable for direct connection to low-impedance power sources (e.g., public mains) or direct burial applications.

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Note: Asterisk * denotes superseded standard, ** denotes Test temperature +60°C, duration 4h.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

Pair : Two conductors twisted to form a pair

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

Separator : Polyester tape

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

Inner sheath : HFFR compound, EN 50290-2-27

Armour : Galvenized round steel wire, EN 10257-1

Outer Sheath : Thermoplastic LSZH compound type LTS3 as per BS 7655-6.1 (Thermosetting LSZH compound type SW2-SW4 as per BS 7655-2.6 can be offered.). UV resistance, hydrocarbon resistance, oil resistance, anti rodent and anti 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