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Flexible mineral insulated cable construction method

A technology of mineral insulated cables and construction methods, which is applied in the direction of cable laying equipment, etc., can solve the problems of increasing project costs and failure to meet fire protection requirements at branches, and achieve the effects of simple construction, promotion of construction progress and project quality, and resolution of fire protection requirements

Inactive Publication Date: 2021-01-29
中建八局发展建设有限公司
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  • Description
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Problems solved by technology

[0004] The embodiment of the present invention provides a construction method for flexible mineral insulated cables, the purpose of which is to solve the problem that the existing rigid mineral insulated cables are limited by the production process, and when they are used as trunk lines, the branches cannot meet the fire protection requirements; ordinary cable laying paths must rely on bridges , increasing the engineering cost

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Embodiment

[0033] Refer to attached figure 1 As shown, the present invention provides a technical solution: a flexible mineral insulated cable construction method, comprising the following steps:

[0034] S1, cable support type selection, choose horizontal laying cable support and vertical laying cable support according to drawing design requirements and actual site conditions;

[0035] Specifically, 50*5 angle steel is used for fixing the horizontally laid cable bracket and the top surface, and fixed on the ceiling with expansion bolts, and DN25 galvanized steel pipe is used for the vertical pole and horizontal support pole to reduce the sliding of the cable during the horizontal laying process Friction, according to the number of cables, make horizontal support rods with different layers. The vertical rods, horizontal rods and angle steel are firmly welded. (triangular structure), fixed on the wall along the wall, anti-rust treatment on the welded part after production, and the color ...

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Abstract

The invention provides a flexible mineral insulated cable construction method, which belongs to the technical field of electric wire and cable engineering. The method comprises the steps of cable bracket model selection, field positioning and the like, and is characterized in that a cable path is planned in advance, including wall body treatment and bracket manufacturing and mounting; under the condition of ensuring firmness, cable laying is carried out, the cables are classified and sorted according to the types and specifications of the cables and then are fixed through ribbons; the on-siteconstruction quality is guaranteed, construction is easy, convenient and rapid, the construction progress and the engineering quality are greatly promoted, and good economic benefits and social benefits are obtained. The problems that according to a common laying method, many bridges are needed, the construction investment is large, the construction space is small, and the construction period is long are well solved, a launching type laying part adopts a bridge-free construction mode, and the construction cost is reduced; and a trunk type laying part adopts a prefabricated branch cable and adopts a cable bracket for laying, so that the fireproof requirement of a super high-rise building on the cable is successfully met.

Description

technical field [0001] The invention belongs to the technical field of wire and cable engineering, and in particular relates to a construction method for flexible mineral insulated cables. Background technique [0002] Compared with traditional rigid mineral insulated cables, flexible mineral insulated cables are composed of copper strands, mineral compound insulation, and mineral compound sheath. It adopts a flexible structure, and the main materials are all inorganic materials, which makes up for the defects of hard structure, flammability, and toxicity, and has some advantages that other cables do not have, such as: fire resistance, large carrying capacity, impact voltage resistance, mechanical damage resistance, Halogen-free, non-toxic, explosion-proof, waterproof, corrosion-resistant, long life, safe, overload-resistant, high-temperature resistant, and low-cost. Ordinary cables use organic polymer materials for insulation, so they are easily carbonized under flame cond...

Claims

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Application Information

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IPC IPC(8): H02G1/06
CPCH02G1/06
Inventor 孙飞国高永强禚昌磊许飞邵升伟
Owner 中建八局发展建设有限公司
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