FIELD: electricity.
SUBSTANCE: insulated composite electric cable is purposed for use as underground and underwater power supply lines; its core is made of wires defining common longitudinal axis, variety of composite wires around the wired core and insulating jacket that surrounds composite wires. In some versions the first variety of composite wires is twisted helically around the wired core in first direction of laying under the first angle of laying in regards to the common longitudinal axis with first laying pitch and the second variety of composite wires is twisted helically around the first variety of composite wires in first direction of laying under the second angle of laying in regards to the common longitudinal axis with second laying pitch; at that relative difference between the first and second angles of laying does not exceed 4° approximately. Methods of manufacturing and use of insulated composite cable are also described.
EFFECT: improving tensile strength of composite cables in insulating jacket.
25 cl, 5 dwg
