Pressurisation and heating device and method for insulation system restoration of a power cable

PRESSURISATION AND HEATING DEVICE AND METHOD FOR INSULATION SYSTEM RESTORATION OF A POWER CABLE A pressurisation and heating device (1) for restoring an insulation system of a 5 power cable, the pressurisation and heating device (1) comprising: a first part (3) comprising a first channel (3a) configured to receive a portion of the power cable, a second part (5) comprising a second channel (5a) configured to receive a portion of the power cable, wherein the pressurisation and heating device (1) is configured to be set in a closed state in which the first 10 channel (3a) faces the second channel (5a) thereby forming a heating chamber extending from a first end (4a) to a second end (4b), opposite the first end (4a), of the pressurisation and heating device (1), wherein the pressurisation and heating device (1) is configured to be pressurised to obtain a pressure higher than atmospheric pressure inside the heating chamber 15 when the power cable is arranged sealed in the heating chamber, wherein the pressurisation and heating device (1) has an at least 20 cm long axially extending section (9) which is primarily made of material at most having a conductivity of the order of 1000 S/m at 200 C. (Fig. 1) 3b 7 3a 4a 4b 5 5b 7 Fig. 1 10 17a 3 9 21 1a Fia.2