Power cable with metallic sheath joint

A method of manufacturing a power cable, the method comprising:

• a) providing a conductor, an insulation system including an inner semiconducting layer arranged around the conductor, an insulation layer arranged around the inner semiconducting layer, and an outer semiconducting layer arranged around the insulation layer, and a metallic water blocking layer arranged around the insulation system, comprising a first axial section, and a second axial section, wherein the insulation system has an exposed section between the first axial section and the second axial section,
• b) providing a metal tube around the exposed section, and
• d) thermally joining the metal tube along its entire inner or outer perimeter with each of the first axial section and the second axial section to obtain a watertight connection between the metal tube and each of the first axial section and the second axial section, the metal tube forming an intermediate axial section between the first axial section and the second axial section,
• wherein the metal tube is made of a lead-free metal material which is different from a first metal material of at least one of the first axial section and the second axial section, and wherein the lead-free metal material has a lower yield strength than the first metal material,
• wherein the first metal material and the lead-free metal material in a galvanic cell comprising sea water at a temperature of 10° C. have an electric potential versus Saturated Calomel Electrode, SCE, wherein an absolute value of a difference of the electric potential of the first metal material and the lead-free metal material is at most 250 mV.