BS50288 Cable
XLPE Insulated, LSZH Sheathed & Overall Screened Instrumentation Cables (Multicore)
Multi-element metallic cables used in analogue and digital communication and control, manufactured in accordance with British Standard BS EN 50288 and European Standard EN 50288.
Instrumentation cables manufactured in accordance with BS EN 50288 are widely used in processing plants such as those found in the petrochemical industry due to their ability to withstand electromagnetic interference. They are used for the transmission of signals in instrumentation, control and communication applications.
BS EN 50288 covers the following range of cables
| RE-2X(st)H cable | XLPE insulated and LSZH sheathed |
RE-2X(st)Y cable | XLPE insulated and PVC sheathed |
RE-2Y(st)Y cable | PE insulated and PVC sheathed |
BS EN 50288 Part 1 - cable construction
| Conductor | Solid or stranded copper |
Insulation | Various - to meet the electrical and environmental requirements of the application |
Screen + cable core) |
When required, one of any combination of: |
Filling compounds | Water swellable tape, water swellable non-toxic powder or combination of materials are allowed |
Interstitial fillers | Non-hygroscopic material |
Moisture barrier | Metallic foil allowed |
Inner sheath | Materials to meet requirements of EN 50290-2 |
Metallic protection |
One or more of the following: |
Outersheath | As per insulation |
APPLICATION
The LSZH sheathed cables are generally use for indoor installation and suitable for wet and damp areas. Generally, the cables are used within industrial process manufacturing plants for communication, data and voice transmission signals and services. Also used for the interconnection of electrical equipment and instruments, the LSZH sheath can reduce toxic smoke and fume emission.
STANDARDS
Basic design to EN 50288-7
VOLTAGE RATING
500V 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.
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 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 numbered
Outer Sheath: Black, blue for intrinsically safe systems
Physical AND THERMAL PROPERTIES
Temperature Range During Operation (Fixed State): -30°C – +90°C
Temperature Range During Installation (Mobile State): -5°C – +50°C
Minimum Bending Radius: 7.5 X Overall Diameter
BS EN 50288 PART 7 - CABLE CONSTRUCTION
Conductor | Solid, stranded or flexible plain or metal coated copper (Class 1, 2 or 5)* |
Insulation | PVC, PE or XLPE |
Cores | Pair (twisted) triple (twisted) quad (twisted) |
Twisting | Lay length clearly defined; depending on conductor size and element; between 100 and 150mm |
Individual pair screens | Laminated tape aluminium/PET total thickness 24µm |
Drain wire | Solid tinned copper drain wire 0.6mm Ø, under individual screen |
Collective screen | Collective screen (24µm aluminium/PET) tape + 7 stranded tinned copper drain wire (0.5mm2); overlap of foil min 20%; drain wire in direct contact with metallic side of the foil wrapping layer of tape under collective screen |
Inner Sheath | PVC, PE or LSZH |
Metal braid | tinned copper wires (C) wire diameter ≥0.3mm filling factor ≥0.57mm |
Armouring | SWA, Flat steel wires with counter helix, Steel or Brass Tape |
OuterSheath | PVC, PE or LSZH |