De Angeli Prodotti has recently developed this surface treatment.
The thickness of varnish is only 15-20microns and it’s solvent free. The curing process is carry out using UV lamps and this technology is eco-friendly. 
This surface treatment gives these advantages:

  • increasing emissivity of conductor up to 0.75, i.e. more ampacity at the same operating temperature
  • you can camouflage the conductor (for example on the woods)

This treatment is possible for HTLS and conventional conductors.