Multi-core water-blocking cable with ground wire core

• Main Authors: YU SHUI, YANG FENXIANG, JIANG ZHENGGUANG, MA ZHUANG, XIA YAFANG
• Format: Patent
• Language: English
• Published: 13.05.2015
• Subjects: BASIC ELECTRIC ELEMENTS; CABLES; CONDUCTORS; ELECTRICITY; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES

The utility model discloses a multi-core water-blocking cable with a ground wire core. The cable comprises a tightening layer (1) and a cable core (2). The cable core (2) is wrapped by the tightening layer (1). The cable core (2) comprises the circular ground wire core (22) and a number of wire cores (21). The circular ground wire core (22) is located in center of the cable core (2). Each wire core (21) is composed of a circular conductor (211) and an extruded insulation layer (212) extruded outside the circular conductor (211). According to the multi-core water-blocking cable with the ground wire core, which is provided by the utility model, the power wire cores are in corrugated structures; the power wire cores and the ground wire core are in compact structures; a water-blocking tape, a water-blocking rope, water-blocking yarn, water-blocking powder and other water-swelling materials are not needed among the wire cores; the production cost is reduced; a water-blocking performance is reliable; the conductors are in circular compact structures; a process is easy; and the insulation layers are prevented from damage.