Cable for conducting energy

An energy conducting cable, which comprises:

• at least one metallic conductor at its core covered by at least one layer of insulating material;
• and
• a longitudinally welded corrugated metallic sheath housing said conductor core;
• the cable having an ampacity and fault carrying capacity which approximates that of a cable having a like diameter sheath of chemical lead;
• the sheath having a resistivity generally within a range of 20-60% IACS, consisting essentially of brass, and forming a hermetic seal about the cable, the corrugation pitch to corrugation depth ratio being less than about 3.75 and the outside sheath diameter to sheath wall thickness ratio being greater than about 100.

An energy conducting cable, which comprises:

• at least one metallic conductor at its core covered by at least one layer of insulating material;
• and
• a longitudinally welded corrugated metallic sheath housing said conductor core, the cable having an ampacity and fault carrying capacity which approximates that of a cable having a like diameter sheath of chemical lead;
• the sheath consisting essentially of brass and forming a hermetic seal about the cable, the corrugation pitch to corrugation depth ratio being less than about 3.75.

An energy conducting cable, which comprises:

• at least one metallic conductor, the conductor having a first layer of semiconducting material, a second layer of insulating material, and a third layer of semiconducting material, and
• a longitudinally welded corrugated metallic sheath housing said conductor core, the cable having an ampacity and fault carrying capacity which approximates that of a cable having a like diameter sheath of chemical lead;
• the sheath consisting essentially of brass and forming a hermetic seal about the cable, the corrugation pitch to corrugation depth ratio being less than about 3.75;
• the sheath further having an inside diameter generally within a range of 75% and 85% of the sheath outside diameter, a corrugation pitch generally within a range of 15% and 25% of the outside diameter, and a wall thickness generally within a range of 0.5% and 2.0% of the outside diameter.

An energy conducting cable, which comprises:

• at least one metallic conductor, the conductor having a first layer of semiconducting material, a second layer of insulating material, and a third layer of semiconducting material;
• and
• a longitudinally welded corrugated metallic sheath housing said conductor core, the cable having an ampacity and fault carrying capacity which approximates that of a cable having a like diameter sheath of chemical lead;
• the sheath forming a hermetic seal about the cable and the metal being formable into strips and weldable, the sheath having a corrugation depth ratio of less than about 3.75 and an outside sheath diameter to sheath wall thickness ratio of greater than about 100.