Darkness at noon

“Innovations often breed new innovations. What we learned with fluorescent cables inspired us to create a new reflective mining cable."   

   Darkness at noon

 
 

Darkness at noon

Darkness at noon

Darkness at noon

 


 

A guiding light

To meet safety needs in areas deep underground that never see daylight, Nexans Chile has come up with a new special mining cable that is highly visible under the glare of external electric lights (lights, helmet lamps, and vehicle headlamps).

 

No more hide and seek

A reflective tape protected by an extra heavy-duty transparent TPU (Thermoplastic Polyurethane) sheath reflects ambient light, thus revealing the presence of cables used to power and control cutters, loaders, scoopers and other machines. This protects them from being crushed and damaged, and extends their lifespan.


 
Wide applicability

Reflective cables can be used both in underground and in open cast mining applications, and could also power equipment housed in building basements, mountain tunnels, or in the Arctic or Antarctic, where sunlight is unavailable for only part of the year.

 

Dark reflections

This new development is a follow-up to the Chilean fluorescent mining cable which won the 2009 Innovaction Award (see Innovaction #18, 2009). Fluorescent cables are limited to places where there is enough sunlight during the day to generate nighttime fluorescence.  So a design was needed for permanently dark environments. Cables wrapped with reflective tapes were either quickly soiled or easily damaged, while extruding a compound over reflective tapes deprived them of the reflective characteristics.

 

Slithering striped snake

The clue to success was a highly resistant reflective tape wrapped around the core of an SHD-GC mining energy cable protected by a tough, clear sheath. This creates a distinctive green spiral that twists and turns in the shadowy landscape, making it easy to spot and avoid.