The connection between aluminium messenger wires and copper jumper wires is very problematic.

If an electrically conductive liquid like condensate or general humidity meets a connection of copper and aluminium, an electrochemical reaction forming a contact element. The potential difference forming the contact element with the copper electrode (anode), the electrolyte (water) and the aluminum electrode (cathode).

The voltage generated is short-circuited via the contact between copper and aluminum parts. This process creates a decomposition of the aluminum and starts even with the smallest copper particles on counter part, the copper itself does not decompose.

The solution to this process is to connect these two systems with “neutral” material, with our nickel plated feeder clamp FKL and nickel plated hanger clamp HKL-02 you can make a safe and reliable connection from your copper system to an aluminum messenger wire.

Interested? Please feel free to contact us at: sales@kruch.at.