Subsea Power Cable are used to carry electric power in marine environment, where are commonly installed on the seabed. The internal conductor is wrapped by electric insulation and several protective layers, among these a lead sheathing insulates the conductor from sea water. The characterization of the lead alloy with respect to load condition is a challenging procedure, that involve several experimental efforts. Testing procedure is complicated by the high ductility of the material along with time dependent deformation at room temperature. Digital Image Correlation has been used during the test for numerically reconstruct the strain pattern on the specimen’s surface and avoid errors due to the deformation induced by the clamping system.