HVDC power cable multi-branch joint assembly

HVDC POWER CABLE MULTI-BRANCH JOINT ASSEMBLY An HVDC power cable joint assembly (7) for jointing more than two power cables (9), comprising: a connection body comprising: a multi-branch 5 conductor having at least two branches and a stem, a multi-branch conductor insulation system comprising: a connection body inner semiconducting layer arranged radially outside of the multi-branch conductor, a connection body insulation layer arranged radially outside the connection body inner semiconducting layer, a connection body outer semiconducting layer 10 arranged radially outside the connection body insulation layer, N power cables (9), where N is the number of branches plus one, each power cable (9) having a conductor (9a), and a power cable insulation system surrounding the conductor (9a), N power cable joints (1), each connecting a branch or the stem (3c) to a respective power cable (9), wherein each power cable joint (1) 15 comprises: a conductor joint (na) between one of the branches, or the stem, and a conductor (9a) of one of the power cables (9a), a joint insulation system arranged around the conductor joint (na), the joint insulation system comprising a deflector layer (nc), a field grading layer (id), a joint insulation layer (lie) and a joint insulation system outer semiconducting 20 layer (uf), and an outer cover housing (ng) the joint insulation system, and an external metal casing (13) accommodating the connection body. (Fig. 2) 19376114_1 (GHMatters) P120777.AU 1' 11' 11' 3 Fig. 3 a) Making b) Providing Fig. 4