The present disclosure relates to a flexibility-improved central tensile member for an overhead transmission cable, and an overhead transmission cable including the same. In particular, the present disclosure relates to a flexibility-improved central tensile member for an overhead transmission cable, and an overhead transmission cable including the same, wherein the central tensile member has excellent tensile strength and thus has excellent sag properties preventing the wired overhead transmission cable from sagging, and has sufficient flexibility and thus improves wiring workability. Moreover, the central tensile member can suppress corrosion and damage to a conductor wire arranged around the central tensile member and thus can eliminate or minimize an increase in resistance of the overhead transmission cable, as well as a resultant reduction in transmission capacity, and makes it possible to reduce weight and manufacturing costs of the overhead transmission cable.

A method of marking a location of interest on a power cable, including a) identifying a location of interest on a layer of the power cable in a process of manufacturing the power cable, and b) providing a marker at the location of interest, the marker being able to transmit radiation.

Cables having interlocking armor layers formed from improved aluminum alloys are disclosed. The aluminum alloys include magnesium and manganese and are capable of being formed without heat treatment upon formation of an aluminum alloy strip. The interlocking armor layers exhibit strength, ductility, and formability. Methods of making the interlocking armor layers are further disclosed.

A wire harness that includes an electric wire; a first tube that is made of a metal and covers an outer circumference of the electric wire; a braided wire that is formed by braiding conductive strands into a tubular shape, is attached to an outer circumferential surface of the first tube, and covers an outer circumference of a drawn-out portion of the electric wire, the drawn-out portion being drawn out from an end of the first tube; and a second tube that is made of a metal.