PROTECTION DEVICE FOR POWER CABLES WITH IMPREGNATED-PAPER-BASED INSULATION

摘要

Protection device for power cables with impregnated-paper-based insulation Protection device for a power cable (3) having an insulation (4) based on oil-impregnated paper and an external protection (15). It comprises a barrier layer (11) placed in contact with the insulator (4) and made of an oil-impermeable elastomer material having a permittivity of between (2) and (100). The elastomer material is practically impermeable to water vapour and has a Mooney viscosity of between (12) and (90) at 100° C.