Mining cables hang tough

Hard Day’s Night

Mining power cables have a hard life. They are dragged, bruised, driven over, and subject to daily stress, which means regular replacement and repair. A new patent for sheathing material greatly improves breakage and cut/abrasion resistance at a very competitive price, while assuring other indispensible properties.

More bang for your buck

The new patent presents several advantages. For Nexans, production of the compound and process remain basically the same. The customer benefits from a cable that is more resistant, just as flexible, and easier to maintain using traditional repair methods. Nor is it more expensive than other protective measures.

Incremental improvement

From the outset, we wanted a non-disruptive improvement for us as a manufacturer and our mining customers, without having to raise the cost of the cable. Using materials that were already incorporated in existing mining cables, we looked for a simple but innovative solution. And so, we introduced a limited quantity of new polymers (under 10%) into the compound: in this case, butadiene and hydrogen acrylonitrile. This new combination created a synergy that significantly improved abrasion resistance in the outer sheath, durability and longevity.

Underground and opencast

Other technologies exist to protect mining cables, like metal armoring. However, they have disadvantages like extra weight and reduced flexibility, vital in a mobile environment. Our new patent guarantees customers of a high-performance cable that fits seamlessly into existing machine energy systems for easy handling, repair and replacement. This new solution was proposed to Nexans Chile, who have themselves been innovators for mining cables, but they could also be used worldwide for underground and opencast operations.