“We have a long relationship with Maillefer, and we have many Maillefer CCV lines in our factory. The new high voltage CV line is in full operation, producing up to 3000 mm2, 500 kV cables. The Neutral Zone Postheater has significantly increased productivity. It has worked so well that we have placed an order for a second postheater for another production line”
The Neutral Zone Postheater is a patent pending method invented by Maillefer. It is offered for EHV CCV lines, like the one delivered to TELE-FONIKA Kable. Using the Neutral Zone Postheater minimizes drooping of the insulation even at high conductor temperatures. This significantly increases line speed while maintaining the roundness and centricity of the insulated conductor.
A Neutral Zone Postheater together with the latest extruder screws provides real opportunities to boost productivity. For new CV lines, increased line speed is not the only alternative. With the Neutral Zone Postheater, the actual heating section can be shorter for an equivalent line speed, resulting in a reduced height of the extruder platform and lower building costs.