Method for twisting fibers in center of composite power cable conductor

Abstract

The invention relates to a method for twisting fibers in the center of a composite power cable conductor, solving the lasting problem of arranging optical fiber in the center of the cable conductor, which is unsolved all along by technical staff in the field. The invention utilizes the conventional frame-type wire-twisting machine, twists compacted and molded fan-shaped conductor units into a round segment conductor by fan-shaped filming, and twists the optical fiber with a stainless steel sleeve into a space enclosed by the round segment conductor center at the same time, and sequentially arranges a semi-conductive shielding layer, a crosslinked polyethylene insulator, an insulated semi-conductive shielding layer, a metal sheath and a plastic sheath on the periphery of the round segment conductor to prepare a composite power cable. The invention has simple process flows and together successfully twists the optical fiber with the stainless steel sleeve in the conductor center of the cable core on a basis of unchanging the prior cable manufacture process flows so that the product reaches the aims of accurately realizing the online measurement of practical cable temperature rise, exerting the transmission capability of the cable to the maximum extent and ensuring the safe operation of a power cable line.

Description

technical field [0001] The invention relates to a processing method of an ultra-high voltage cross-linked polyethylene insulated composite power cable in which a temperature-measuring optical fiber is arranged in the conductor, in particular to a method in which the temperature-measuring optical fiber is directly arranged in the center of the twisted and split conductor of the composite power cable A method for center stranding optical fibers in the conductors of composite power cables. This method mainly prepares the transmission of strong electric energy in the transmission, distribution, transmission, transformation, and power supply lines for online real-time temperature detection, and the passing current is large (tens of amperes to several thousand amperes), and the voltage is high (66V to 500kV and The center of the conductor of the above) is an ultra-high voltage XLPE insulated composite power cable with an optical fiber. Background technique [0002] With the devel...

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Problems solved by technology

Therefore, so far, there is no report of processing a high-voltage power cable with a temperature-measuring optical fiber in the center of the cable core conductor without a channel structure and the application of this high-voltage power cable.

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