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07 / 08Railway

Current connections for railways

IZAR makes braided, cord and laminated copper connectors that carry current in traction substations and rail vehicles despite constant vibration and movement.

Electric multiple unit with its pantograph on the overhead line, fed from a traction substation

Where it works

In the substation and on the vehicle

In a traction substation, connectors link rectifiers, switchgear and line feeders. On the vehicle, they connect equipment on moving parts: body, bogies and pantograph.

What it has to withstand

  • Constant vibration

    A moving train vibrates without pause. The connector must not crack or loosen at the contact.

  • Movement in many directions

    Body, bogie and pantograph move relative to each other. The connector works vertically and horizontally.

  • High current in the substation

    Substation rectifiers and switchgear carry high currents. Cross-section and a stable stack matter there.

Enquiry

What to include in your enquiry

  1. Current [A] or cross-section [mm²]
  2. Direction and range of movement
  3. Terminals: flat or ring, dimensions and holes
  4. Bare or tinned wires
  5. Length and insulation
  6. Quantity

Questions

Choosing the right connector

Which connector copes with movement on a rail vehicle?

A PLG cord or a PG braid. PLG, made of soft copper wire, is the most flexible of all connections and works in every direction, with cord cross-sections from 6 to 185 mm². The flat PG braid takes up vertical and horizontal movement at cross-sections up to 6,000 mm².

Can PLG cords be tinned?

Yes. PLG cords are made of soft copper wires, bare or tinned, stranded with a lay length of 8–20 times the finished cord diameter, with crimped flat or ring terminals.

Describe the installation point

Current, contact dimensions and the movement to absorb, or a drawing. Our sales team will pick the connection type and prepare a quote.

Sales

Maciej Połacik Sales Director

+48 887 137 777

maciej@izar.pl