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An extensive study has been carried out into the electrical behavior of crosslinkable dielectric materials at elevated temperatures under a reserach contract from the Electric Power Research Institute. This work is part of a program to establish emergency operating guidelines for extruded solid dielectric power cables. Materials studied include XLPE, filled XLPE and EPR compounds. The A. C. and impulse...
Research is underway at IREQ on the insulation performance of compressed SF6 insulated cables for power transmission at system voltages up to 800 kV. The work reported here is concerned with the choice of materials for the design and testing of model size and full size spacers for 138 kV and 800 kV system voltage respectively. Five epoxy resin formulations were considered together with the effect...
The operation of electrical insulation at cryogenic temperatures is becoming increasingly frequent. It is important, to design a reliable insulation system, to know the behaviour of dielectrics under voltage stress at low temperatures.
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