Shine little glow-worm, glimmer, glimmer

“Meeting customer demand for a cable that could glow in the dark required perseverance and intuition.”  


   Shine little


Shine little glow-worm

Shine little glow-worm

Shine little glow-worm



Glows like an incandescent wire

To meet the nighttime power needs of Chile’s Minera Escondida, a copper mine with the largest output in the world, Nexans developed an outdoor mining cable whose cores are wrapped with a fluorescent tape covered by a halogen-free TPU (Thermoplastic Polyurethane) sheath which makes it glow in the dark.


Turns on the AC and the DC

Mining uses various nonstop equipment like feeding cranes, shovels, drills, and dredges. Accidental crushing by trucks or other machines limits their life, and can bring production to a halt, generating financial losses.


Who it took the shine to

Although designed for mining, other applications include any power cable requiring night visibility and a UV-protected transparent sheath, e.g. cables installed on mountainsides.


When you gotta glow, you gotta glow

As early as 1996, experiments were done with fluorescent pigments incorporated in rubber sheathing; however, they could not glow for more than 2 hours in darkness and had a lifetime of two months. When Minera Escondida asked Madeco for fluorescence or reflectivity in future mining cables in 2007, reflective tape was tried but needed protection against highly abrasive ground in the mines. The ideal combination was a newly developed transparent Lubrizol TPU covering a Korean fluorescent tape which provided good glowing permanence for up to five years.


Lights the path below, above

Fully ICEA (American standard) compliant, Nexans new fluorescent cables are visible all night, and even more visible during the day, thus preventing serious and fatal accidents. Transparency of the outer sheath also makes it possible to immediately detect breaks which cause electrical failure.


Shine little glow-worm, glimmer, glimmer: Music by the Mill’s brothers