Conductor for a power transmission cable and a process for the production of the conductor

A conductor for a power transmission cable comprising:

• at least two separate lengths of aluminium conductors, wherein the aluminium content of the lengths of the aluminium conductors is at least 99.5% by weight, and the remainder up to 100% by weight includes other metals and/or substances, and wherein a titanium content in the remainder is at most 0.02% by weight, based on the total weight of the lengths of the aluminum conductors,
• the at least two lengths of the aluminium conductors being joined together by means of a welded joint including a welding material alloy, wherein the welding material alloy has an aluminium content of at least 99.5% by weight, a titanium content of from 0.10 to 0.50% by weight and the remainder up to 100% by weight, based on the total weight of the welding material alloy, includes other metals and/or substances.

A process for the production of a conductor for a power transmission cable including the steps of:

• a. providing at least two separate lengths of aluminium conductors for a power transmission cable, wherein the aluminium content of the lengths of the aluminium conductors is at least 99.5% by weight and the remainder up to 100% by weight includes other metals and/or substances and wherein a titanium content in the remainder is at most 0.02% by weight, based on the total weight of the lengths of the aluminum conductors;
• b. joining the lengths of the aluminum conductors together by means of welding, wherein welding is performed by using a welding material alloy having an aluminium content of at least 99.5% by weight, a titanium content of from 0.10 to 0.50% by weight and the remainder up to 100% by weight, based on the total weight of the welding material alloy, includes other metals and/or substances.