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Fire-resistant and fireproof cable and full-horizontal semi-porcelain production technology

A fire-resistant cable and fire-resistant technology, which is applied in the manufacture of insulated cables, cables/conductors, and insulation of conductors/cables, etc., can solve the problems of large floor space and high cost

Pending Publication Date: 2021-05-11
浙江元通线缆制造有限公司 +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the production process of mineral insulated fireproof cables mainly includes vertical part (magnesia filling process and copper core vertical longitudinal wrapping process) and horizontal part (annealing and drawing process), among which the cost of vertical part is extremely high and it occupies a large area

Method used

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  • Fire-resistant and fireproof cable and full-horizontal semi-porcelain production technology
  • Fire-resistant and fireproof cable and full-horizontal semi-porcelain production technology
  • Fire-resistant and fireproof cable and full-horizontal semi-porcelain production technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Such as figure 1 and figure 2 As shown, a fire-resistant and fire-resistant cable includes a copper core 1, a protective sheath 2 and a support frame 3. The copper core 1 is made of copper tape, the outer wall of the copper core 1 is wound with a semiconductor tape, and the support frame 3 is arranged in the protective sheath 2. , the copper core 1 is set on the supporting frame 3, and the copper core 1 is covered with an insulating shielding layer 11 and a rubber protective layer 12 in sequence from the inside to the outside. The thickness of the insulating shielding layer 11 is set to 0.4mm, and the supporting frame 3 includes a central rod 31. The connection part 32 and the skeleton 33, the connection part 32 is arranged between the central rod 31 and the rubber protection layer 12, the connection part 32 is connected with the rubber protection layer 12, the skeleton 33 is arranged between the connection parts 32, and the skeleton 33 connects the central rod 31 Con...

Embodiment 2

[0035] Such as image 3 Shown, a kind of all-horizontal semi-porcelain production process that is used to produce fire-resistant and fireproof electricity in embodiment 1,

[0036] Step 1: Trim and straighten the copper core 1, and then wrap the semiconductor tape on the outer wall of the copper core 1. At the same time, through the extrusion process, the ceramic silicon rubber, the extrusion speed of the ceramic silicon rubber extrusion process, and the copper tape and Copper core 1 moves at the same speed, 18 m / min;

[0037] Step 2: Connect the copper core 1 through the copper strip horizontal longitudinal wrapping process, and wrap the ceramic silicone rubber on the outside of the rubber protective layer 12. The copper strip horizontal longitudinal wrapping process adopts the argon arc welding method, and the welding temperature is 350°C. The eccentricity meter is used to detect the eccentricity problem in the horizontal longitudinal wrapping process in real time in the pr...

Embodiment 3

[0043] Such as Figure 1-Figure 3 As shown, a fire-resistant and fire-resistant cable includes a copper core 1, a protective sheath 2 and a support frame 3. The copper core 1 is made of copper tape, the outer wall of the copper core 1 is wound with a semiconductor tape, and the support frame 3 is arranged in the protective sheath 2. , the copper core 1 is set on the supporting frame 3, and the copper core 1 is covered with an insulating shielding layer 11 and a rubber protective layer 12 in sequence from the inside to the outside. The thickness of the insulating shielding layer 11 is set to 0.4mm, and the supporting frame 3 includes a central rod 31. The connection part 32 and the skeleton 33, the connection part 32 is arranged between the central rod 31 and the rubber protection layer 12, the connection part 32 is connected with the rubber protection layer 12, the skeleton 33 is arranged between the connection parts 32, and the skeleton 33 connects the central rod 31 Connecte...

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Abstract

The invention relates to the technical field of cables, in particular to a fire-resistant and fireproof cable and a full-horizontal semi-porcelain production technology. The fire-resistant and fireproof cable comprises a copper core, a protective sleeve and a supporting frame. The copper core is sequentially coated with an insulation shielding layer and a rubber protective layer from inside to outside, and the supporting frame comprises a center rod, a connecting part and a framework. The connecting parts are arranged between the center rod and the rubber protection layer and connected with the rubber protection layer, the framework is arranged between the connecting parts, the center rod and the protection sleeve are connected through the framework, a containing area is arranged among the framework, the connecting parts and the rubber protection layer, the containing area is filled with polystyrene foam, and the protection sleeve is provided with an inner protection layer and an outer protection layer. A gap is formed between the inner protection layer and the outer protection layer, water is arranged in the gap, the cable has a good compression resistance effect and is provided with multiple fireproof structures. In addition, the technology involved in the invention is a horizontal part, no vertical part exists, and the cable has the advantages of being small in occupied area and low in cost.

Description

technical field [0001] The invention relates to the technical field of cables, in particular to a fire-resistant and fireproof cable and a fully horizontal semi-ceramic production process. Background technique [0002] Cables play an important role in transmitting electrical energy and transmitting information, which is equivalent to the "blood vessels" in the human body. At present, the wire and cable industry accounts for 1 / 4 of the output value of my country's electrical industry, and is the second largest industry after the automobile industry. However, the higher scope of use is also accompanied by larger problems. From 2013 to 2016, electrical fires in my country accounted for about 1 / 3 of the total number of fires, and fires caused by electrical line failures such as cables accounted for about 1 / 3 of the number of electrical fires. 60%. Among them, the secondary accident caused by the failure of the cable function under fire conditions is the main reason for the expa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/29H01B7/02H01B7/17H01B13/14H01B13/22H01B13/24
CPCH01B7/02H01B7/17H01B7/29H01B13/14H01B13/22H01B13/24
Inventor 徐季新章城黄桂领王世军
Owner 浙江元通线缆制造有限公司
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