Machines for electric cables and optical fibers
RoSET: Rosendahl’s next generation power cable insulation technology
A number of forward-thinking cable makers are already manufacturing and testing polypropylene-based insulation systems (PPC) for MV and HV applications, both in AC and DC. PPC systems feature excellent technical specs, such as low carbon footprint, no degassing needed, and no byproducts.
Medium-voltage AC cable properties with RoSET
Both internal and external tests revealed excellent electrical performance. The full electrical type test also showed very low loss factor (Tan Delta) values.
Rosendahl, together with its partner HV Cable Solutions, made some ampacity calculations with different XLPE and PPC grades for a single 20 kV cable. The results showed that PPC cables can have better current carrying capacity and lower electrical losses at 90° C, and that the cable can also endure a temperature of 110° C, if necessary. This was also the case in auxiliary tests when a similar MV XLPE cable was compared to a MV PPC cable.
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