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Medium-voltage fireproof termite-resisting cable

A termite-proof and fire-resistant technology, applied in the direction of insulating cables, cables, circuits, etc., can solve the problems of non-oil-proof performance, unsatisfactory fire-resistant effect, poor mechanical strength, etc., and achieve excellent termite-proof performance and excellent waterproof performance , excellent fire resistance

Inactive Publication Date: 2014-06-25
SHANGHAI QIFAN CABLE CO LTD
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The fire-resistant effect of traditional fire-resistant cables is not ideal, and the mechanical strength is poor.

Method used

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  • Medium-voltage fireproof termite-resisting cable

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Embodiment Construction

[0014] like figure 1 Shown: a medium-voltage fire-resistant and termite-resistant cable, which includes at least three conductors 1 with insulation 3, the insulation 3 is cross-linked polyethylene insulation, and a conductor shield 2 is provided between each conductor 1 and insulation 3 , the insulation 3 of each conductor is wrapped with insulation shielding 4, copper tape shielding 5 and phase-separated refractory layer 6, and the three conductors are wrapped with ceramic silicone rubber composite tape armor 8, oxygen barrier layer 9, and ceramic silicone rubber in turn. Composite belt B 10, copper pipe 11 and sheath 12, three conductors 1 and ceramic silicone rubber composite belt A 8 are provided with a filling rope 7, and the filling rope 7 is an inorganic paper filling rope; the oxygen barrier layer 9 is a low-smoke halogen-free polyolefin oxygen barrier layer; the sheath 12 is a nylon sheath of high-density polyethylene; the conductor shield 2 and the insulation shield ...

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Abstract

The invention relates to a medium-voltage fireproof termite-resisting cable which includes at least three conductors with insulators. The insulators are crosslinked-polyethylene insulators. A conductor shield is arranged between each conductor and a corresponding insulator. An insulating shield, a copper-tape shield and a phase-splitting fireproof layer lap the insulator of each conductor. A ceramic silicone rubber composite tape I, an oxygen isolation layer, a ceramic silicon rubber composite tape II, a copper pipe and a protective sleeve wrap the three conductors sequentially. A filling rope is arranged between the three conductors and the ceramic silicon rubber composite tape I. The filling rope is an inorganic paper filling rope. The oxygen isolation layer is a low-smoke halogen-free polyolefin oxygen isolation layer. The protective layer is a nylon protective sleeve of high-density polyethylene. The conductor shields and the insulating shields are semi-conductive crosslinked-polyethylene shields. The copper pipe is a longitudinally wrapped argon-arc-welding corrugated pipe. The medium-voltage fireproof termite-resisting cable is significantly great in fireproof performance, capable of reaching a fireproof grade of a mineral insulating cable and high in mechanical strength.

Description

technical field [0001] The invention relates to a medium-voltage fire-resistant cable, in particular to a medium-voltage fire-resistant and termite-proof cable. Background technique [0002] Traditional fire-resistant cables have unsatisfactory fire-resistant effects, poor mechanical strength, no oil-proof performance, and no waterproof, anti-corrosion, and termite-proof properties. Contents of the invention [0003] The invention aims to overcome the defects of the prior art, and provides a medium-voltage fire-resistant and termite-proof cable with extremely excellent fire resistance, which can reach the fire resistance level of mineral insulated cables, and the cable has high mechanical strength. [0004] In order to solve the problems of the technologies described above, the present invention is achieved in that: [0005] A medium-voltage fire-resistant and termite-resistant cable, which includes at least three conductors with insulation, characterized in that: the ins...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/17H01B7/18H01B7/20H01B7/29H01B7/295
Inventor 丁永国邱建明张乃保王俊伟
Owner SHANGHAI QIFAN CABLE CO LTD
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