Recent SheathEx™ Installations
A SheathEx machine uses two aluminium rods (12.0mm or 9.5mm ø) to form a ‘seamless’ aluminium sheath around HV and EHV cables.
Baosheng High Voltage Cable Co. Ltd (BHVC) from China required a SheathEx machine to compliment what they already produced on a conventional extrusion press. BHVC continue their expansion in supplying XLPE, HV and EHV power cables (up to 500kV) using the best manufacturing equipment from Europe.
Pacific Electric Wire & Cable Co. Ltd (PEWC) from Taiwan and Iljin Electric Co. Ltd from South Korea already supplied aluminium-sheathed HV cables using the welding method. New cable requirements in new markets demanded a ‘seamless’ and corrugated aluminium sheath (i.e. no weld). Apart from investing in a large and expensive extrusion press, the only option for them was SheathEx. Please refer to recent Testimonial Letters from both companies.
A ‘Seamless’ Aluminium Sheath is very reliable, economical and its mechanical properties make it both lighter and stronger than Lead Sheath.
After forming, the Aluminium Sheath is normally corrugated inline to improve flexibility of the cable. In some applications a smooth type sheath is preferred.