阅读说明：本技术 一种陶瓷配玻璃纤维防火通信光缆 (Ceramic-glass fiber fireproof communication optical cable ) 是由 吴翔宇 于 2019-11-15 设计创作，主要内容包括：本发明公开了一种陶瓷配玻璃纤维防火通信光缆,由内至外包括内芯层、填充层、绕包层和外绝缘护套；内芯层包括一根导线和一根光纤以及将两者绕包的云母带,光纤外包覆内包覆层和外防火层；绕包层包覆在内芯层外部,为双层结构；内芯层与绕包层之间为填充层I；外绝缘护套包覆在绕包层外部。本发明有效提高光缆阻燃性能的同时,保证了光缆的整体韧性,便于安装。(The invention discloses a ceramic-glass fiber fireproof communication optical cable which comprises an inner core layer, a filling layer, a wrapping layer and an outer insulating sheath from inside to outside; the inner core layer comprises a conducting wire, an optical fiber and a mica tape wrapping the conducting wire and the optical fiber, and the optical fiber is wrapped by the inner cladding layer and the outer fireproof layer; the wrapping layer is wrapped outside the inner core layer and has a double-layer structure; a filling layer I is arranged between the inner core layer and the wrapping layer; the outer insulating sheath is coated outside the wrapping layer. The invention effectively improves the flame retardant property of the optical cable, ensures the integral toughness of the optical cable and is convenient to install.)

1. A fireproof communication optical cable with ceramic and glass fiber is characterized by comprising an inner core layer, a filling layer, a wrapping layer and an outer insulating sheath from inside to outside; the inner core layer comprises a conducting wire, an optical fiber (11) and a mica tape (5) wrapping the conducting wire and the optical fiber (11), and an inner cladding layer (10) and an outer fireproof layer (9) are coated outside the optical fiber (11); the wrapping layer is wrapped outside the inner core layer and has a double-layer structure; a filling layer I (4) is arranged between the inner core layer and the wrapping layer; the outer insulating sheath (1) is coated outside the wrapping layer.

2. The fire-proof communication optical cable with ceramic and glass fiber as claimed in claim 1, wherein the conductor is coated with a 0.1mm to 0.15mm thick layer of ceramic silicone rubber (7); the conductor is stranded by adopting a plurality of strands of soft copper wires (8).

3. The ceramic-glass fiber fireproof communication optical cable according to claim 1, wherein the mica tape (5) is a single lapping package, the width is 50mm, the thickness is 0.02 mm-0.04 mm, and the lapping rate is not less than 5%.

4. The ceramic-glass fiber fireproof communication cable according to claim 1, wherein a filler layer II (6) is arranged between the mica tape (5) and the conducting wire and the optical fiber (11), and the filler material is glass fiber.

5. The ceramic-glass fiber fireproof communication optical cable according to claim 1, wherein the material of the filling layer I (4) is glass fiber.

6. The ceramic-glass fiber fireproof communication optical cable according to claim 1, wherein the inner cladding layer (10) is a cross-linked polyethylene insulating sheath with a thickness of 0.15mm to 0.2 mm.

7. The ceramic-glass fiber fireproof communication optical cable according to claim 1, wherein the outer fireproof layer (9) is a ceramic silicon rubber layer with a thickness of 0.1mm to 0.2 mm.

8. The ceramic-glass fiber fireproof communication optical cable according to claim 1, wherein the inner layer (3) of the wrapping layer is formed by spirally and crosswise wrapping two mica tapes, each mica tape has a width of 50mm and a thickness of 0.02mm to 0.04mm, and the outer layer is a magnesium-plastic composite tape (2) and has a thickness of 0.2mm to 0.3 mm.

9. The ceramic-glass fiber fireproof communication optical cable according to claim 8, wherein the overlapping rate of the mica tapes is not less than 3%.

10. A ceramic-glass-fibre fire-resistant telecommunication cable according to claim 1, characterized in that said outer insulating sheath (1) is made of fire-retardant material and has a thickness of 0.25 mm.

Technical Field

The invention relates to the technical field of communication optical cables, in particular to a ceramic-glass fiber fireproof communication optical cable.

Background

The optical cable is used as a main medium of electric power and communication and widely applied to daily life, the protective performance of the optical cable is more and more emphasized, and particularly the fireproof performance is more prominent.

At present, the fireproof optical cable is mainly a mineral insulation optical cable, the conductor of the mineral optical cable is arranged in the copper pipe, magnesium powder is filled between the copper pipe and the conductor for insulation, although the optical cable is good in fireproof and waterproof performance, the cable is high in hardness and difficult to install and construct, the optical fiber is difficult to realize due to the special working characteristics of the optical fiber, the optical fiber body can be damaged, and the reliability of the optical fiber is reduced.

Disclosure of Invention

Aiming at the technical problems, the invention provides a ceramic-glass fiber fireproof communication optical cable, wherein a ceramic silicon rubber layer is added outside a conductor and an optical fiber, a hard ceramic shell is formed in case of fire, and glass fiber is added between a conducting wire and the optical fiber to increase the strength and toughness.

In order to achieve the purpose, the invention adopts the technical scheme that the fireproof communication optical cable with the ceramic and the glass fiber comprises an inner core layer, a filling layer, a wrapping layer and an outer insulating sheath from inside to outside; the inner core layer comprises a conducting wire, an optical fiber and a mica tape wrapping the conducting wire and the optical fiber, and the optical fiber is wrapped by the inner cladding layer and the outer fireproof layer; the wrapping layer is wrapped outside the inner core layer and has a double-layer structure; a filling layer I is arranged between the inner core layer and the wrapping layer; the outer insulating sheath is coated outside the wrapping layer.

The conductor is arranged inside the lead, and the ceramic silicon rubber layer with the thickness of 0.1 mm-0.15 mm is coated outside the lead; the conductor is stranded by adopting a plurality of strands of soft copper wires.

The mica tape is a single lapping package, the width is 50mm, the thickness is 0.02 mm-0.04 mm, and the lapping rate is more than or equal to 5%.

And a filling layer II is arranged among the mica tape, the conducting wire and the optical fiber, and the filling material is glass fiber.

The material of the filling layer I is glass fiber.

The inner cladding layer is a crosslinked polyethylene insulating sleeve with the thickness of 0.15 mm-0.2 mm.

The outer fireproof layer is a ceramic silicon rubber layer with the thickness of 0.1 mm-0.2 mm.

The inner layer of the wrapping layer is formed by spirally and alternately wrapping two mica tapes, the width of each mica tape is 50mm, the thickness of each mica tape is 0.02 mm-0.04 mm, and the outer layer of each mica tape is a magnesium-plastic composite tape, and the thickness of each mica tape is 0.2 mm-0.3 mm.

The cover overlapping rate of the mica tape is more than or equal to 3 percent.

The outer insulating sheath is made of flame retardant material and has a thickness of 0.25 mm.

The invention has the beneficial effects that:

1. the glass fiber is added between the conducting wire and the optical fiber, so that the structural strength and toughness of the optical cable are improved, and the structure of the optical cable is more compact and reasonable.

2. The inner cladding layer, the outer fireproof layer and the outer insulating sheath are arranged, three-layer protection is achieved, the whole toughness of the optical cable is guaranteed while the flame retardant performance of the optical cable is effectively improved, and installation is facilitated.

3. The ceramic silicon rubber layer is coated outside the optical fiber, and a hard ceramic shell is formed in case of fire, so that the communication safety is guaranteed.

Drawings

FIG. 1 is a schematic structural view of a ceramic-glass fiber fireproof communication cable;

specifically, the optical fiber cable comprises an outer insulating sheath 1, a magnesium-plastic composite tape 2, a wrapping layer inner layer 3, a filling layer I4, a mica tape 5, a filling layer II6, a ceramic silicon rubber layer 7, a soft copper wire 8, an outer fireproof layer 9, an inner cladding layer 10 and an optical fiber 11.

Detailed Description

The invention is described in detail below with reference to the figures and examples.