High-water resistance control cable

Abstract

The invention discloses a high-water resistance control cable. The high-water resistance control cable comprises a circular insulation reinforced tube; a Y-shaped insulating separation plate is arranged inside the insulation reinforced tube; four insulating separation plate are radially and uniformity arranged on the outer wall of the insulation reinforced tube; two arc-shaped separation plates One are connected between the two insulating separation plates on the left side; two arc-shaped separation plates Two are connected between the two insulating separation plates on the right side; three main wire cores are arranged between the Y-shaped insulating separation plate and the inner wall of the insulation reinforced tube; and each main wire core includes a main conductor as well as a trifluoropropyl fluorinated silicone rubber insulation layer and a semi-conductive shielding layer which successively coat the outer side of the main conductor. According to the high-water resistance control cable of the invention, control wire cores are provided with oval rubber frames; and connection plates are connected between the left side of each oval rubber frame and one insulating separation plate adjacent to the left side of the corresponding oval rubber frame as well as the right side of each oval rubber frame and one insulating separation plate adjacent to the right side of the corresponding oval rubber frame, and therefore, the high-water resistance control cable has the advantages of compact structure, strong load-bearing capacity, little possibility of being fractured, multi-layer insulation and shielding, stable and reliable work and great buffering anti-vibration effect of semi-conductive expansion buffer layers.

Description

technical field [0001] The invention relates to the technical field of cables, in particular to a control cable with high water resistance. Background technique [0002] With the rapid development of power systems and transportation systems, cables are widely used in ports, hydropower stations, river crossing tunnels, etc., especially in humid and rainy areas such as the south. Water performance puts higher demands on it. [0003] The use of materials and structures of traditional control cables has poor water blocking effect. As the cable runs longer, moisture will invade the insulation layer, and the insulation layer will form electric branches under the action of the alternating electric field. When the electric branches run through the entire When the insulation layer is damaged, the cable will be broken down and scrapped, which will virtually increase the maintenance cost and safety risk of the cable. Contents of the invention [0004] The object of the present inve...

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Problems solved by technology

[0003] The use of materials and structures of traditional control cables has poor water blocking effect. With the increase of cable operation time, moisture will invade the insulation layer, and the insulation layer will form electric branches under the action of alternating electric field. When the electric branches run through the whole When the insulation layer is damaged, the cable will be broken down and scrapped, which will virtually increase the maintenance cost and safety risk of the cable

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