A joint arrangement for a submarine cable, in which armoured submarine cables are joined together, the joint arrangement including a tubular enclosure into which two submarine cables to be joined are to extend and inside which conductors of the two submarine cables are joined, wherein the enclosure includes a current-carrying part arranged so as to be able of conducting at least a part of a current conducted by the armouring of the cables, and a reinforcement part provided to provide sufficient mechanical strength to the enclosure and made of a material of lower electrical conductivity than the material of the current-carrying part. The current-carrying part is integrated in the reinforcement part and forms a single unit therewith.