TRATOS® Railways 11kV MV cable – BS 6622

Tratos 11kV MV cables are used to interconnect railway equipment within substations on Railway premises and property.

Special Cables / Railways & Mass Transit Cables / MV and HV cables for Railways applications

Tratos Railways 11kV MV cables are manufactured in accordance with Network Rail NR/PS/ELP/00008, incorporating requirements from other relevant standards including BS 6622 and IEC 60502-2. 

Tratos MV (Medium Voltage) cables from 6.35 kV to 11 kV are available with circular solid aluminium for supplying d.c. traction substations, circular stranded compacted aluminium conductors for interconnection of equipment within substations or circular stranded compacted copper conductors for interconnection of equipment within substations. All these Railways Medium Voltage cables are manufactured with triple extruded, dry-cured HEPR or XLPE insulation. Metallic insulation screens comprise copper wires, in single or three core designs, armoured or unarmoured. MDPE sheathed in accordance with NR/PS/ELP/00008 and BS 6622 standards. Water-blocked designs are available on request.

For installations where increased fire performance is required, Tratos can supply cables with an LSZH outer sheath.

Designs based upon BS 7835 and BS EN 60502 are also available. 

Tratos Railways 11kV MV cables are designed to be maintenance-free. Tratos Medium Voltage cables offer exceptional long-term reliability and performance.

Our advanced comprehensive in-house testing facilities include one of the largest Faraday Test Cages in Europe so we can ensure that MV cables produced by Tratos follow and meet the requirements of national or international technical standards. Tratos can also issue the appropriate type of test certification based on either testing in our own approved in-house facilities or external laboratories.

Tratos also work closely with manufacturers of Medium Voltage (MV) accessories including a complete range of MV joints, terminations and fixings.

Contact us:

Tel: +44 20 3148 5178


Please don’t hesitate to contact us if you need additional information about our products.


Interconnections for distributing power around NR premises, substations and switchgear


  • Conductor: Solid circular aluminium or stranded circular compacted copper or aluminium
  • Conductor screen: semi-conducting layer 
  • Insulation: HEPR or XLPE  
  • Insulation screen: non metallic - semi-conducting layer 
  • Insulation screen: metallic:  
  • 3 cores laid up

Inner covering: 

Armour: Galvanised steel wires 
  • Outer sheath: MDPE sheathed (LSZH available on request) with heavy graphite coating
  • Standard colour: black
  • • Marking: ELECTRIC CABLE 6.35/11kV + TRATOS Cable type Cable Size (e .g . “1x150”) COMMODITY CODE + NR/PS/ELP/00008  + lot production + year + metre marking"


Technical Specifications

  • Maximum continuous conductor temperature 90 C
    (Assuming no physical contact with the cable)
  • Minimum temperature during installation 0 C
  • Minimum bending radius during installation
    • Single core – 15D
    • Three core – 12D

Contact us

Please, don’t hesitate to contact us for additional information on our company or our products.

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