CN209880225U - Self-supporting fire-resistant waterproof computer cable - Google Patents

Self-supporting fire-resistant waterproof computer cable Download PDF

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Publication number
CN209880225U
CN209880225U CN201921104139.5U CN201921104139U CN209880225U CN 209880225 U CN209880225 U CN 209880225U CN 201921104139 U CN201921104139 U CN 201921104139U CN 209880225 U CN209880225 U CN 209880225U
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China
Prior art keywords
layer
resistant
cable
water
self
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Application number
CN201921104139.5U
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Chinese (zh)
Inventor
许坡
孙甜甜
吴玉飞
吕海英
徐伟权
郭金儒
张小梅
李丽娟
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Guangdong Zhujiang Wire & Cable Co Ltd
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Guangdong Zhujiang Wire & Cable Co Ltd
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Priority to CN201921104139.5U priority Critical patent/CN209880225U/en
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Abstract

The utility model discloses a self-supporting fire-resistant waterproof computer cable, which comprises a prefabricated bearing line positioned at the center, wherein a plurality of cable cores are arranged outside the prefabricated bearing line, and the plurality of cable cores and the prefabricated bearing line are twisted into a cable in a star shape; the cable cores are wrapped with water-blocking coating layers, and water-blocking filling layers are arranged between the water-blocking coating layers and the cable cores; the outside of the water blocking coating layer sequentially comprises an inner protection layer, a total shielding layer, a fireproof layer and an outer sheath layer from inside to outside. The cable can be laid overhead and can be used in severe environments.

Description

Self-supporting fire-resistant waterproof computer cable
Technical Field
The utility model relates to a communication cable technical field, concretely relates to fire-resistant waterproof computer cable of self-supporting.
Background
With the rapid development of national economy, communication cable products have been widely used in various fields and places, particularly, petroleum, chemical industry, power generation, metallurgy, tunnels, hotels, and entertainment places, which require more performance. Because the cable has the requirements of suspension laying and resisting harsh service environment in the using process, the cable has good performance, not only needs to meet the self flame-retardant waterproof function, but also has self-bearing property, however, most of the existing communication cable products have simple structures, do not simultaneously have the self-bearing performance and the fire-resistant waterproof property, can not be directly laid in an overhead manner, and have high cost for laying conventional cable auxiliary materials and short service life of the cable.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve current computer cable and possess self-supporting nature and fire-resistant waterproof characteristic not simultaneously, provide a self-supporting fire-resistant waterproof computer cable, this cable can make somebody a mere figurehead lay and deal with harsh service environment.
The utility model provides a technical scheme that this technical problem adopted is: a self-supporting fire-resistant waterproof computer cable comprises a prefabricated bearing line positioned in the center, wherein a plurality of cable cores are arranged outside the prefabricated bearing line, and the plurality of cable cores and the prefabricated bearing line are stranded into a cable in a star shape; the cable cores are wrapped with water-blocking coating layers, and water-blocking filling layers are arranged between the water-blocking coating layers and the cable cores; the outside of the water blocking coating layer sequentially comprises an inner protection layer, a total shielding layer, a fireproof layer and an outer sheath layer from inside to outside.
Furthermore, the cable core comprises two twisted-pair insulated wire cores and a itemized shielding layer coated outside the two insulated wire cores; and the insulating wire core is sequentially provided with a conductor, a fire-resistant layer and an insulating layer from inside to outside.
Furthermore, the conductor is made of a soft copper conductor conforming to the specification of GB/T3956; the fire-resistant layer is made of calcined mica tapes; the insulating layer is made of fluororubber.
Furthermore, the inner sheath layer and the outer sheath layer are made of halogen-free low-smoke flame-retardant polyolefin.
Further, the filling material of the water-blocking filling layer is water-blocking yarn.
Further, the fireproof layer is made of a ceramic silicon rubber glass fiber tape material.
Further, the material of the prefabricated load bearing line is stainless steel wire material.
Furthermore, the number of the cable cores is at least 3.
Further, the total shielding layer comprises an inner shielding layer and an outer shielding layer, the inner shielding layer is coated outside the water blocking coating layer, and the outer shielding layer is coated outside the inner shielding layer; the inner shielding layer is made of a double-sided aluminum-plastic composite belt; the outer shielding layer is formed by weaving tinned soft copper wires, and the weaving density is not less than 80%.
Furthermore, the item shielding layer comprises an inner item shielding layer and an outer item shielding layer, and the inner item shielding layer is made of a double-sided aluminum-plastic composite tape; the outer item-dividing shielding layer is formed by weaving tinned soft copper wires, and the weaving density is not less than 80%.
Compared with the prior art, the method has the following positive effects:
the utility model discloses a prefabricated bearing line adopts stainless steel material, and this material has performances such as anticorrosion, bearing capacity are strong, can realize the built on stilts laying of cable. The fireproof layer adopts a ceramic silicon rubber glass fiber tape which can quickly form a ceramic protective layer when meeting fire and can achieve the fireproof effect of the cable under the combined action of the ceramic silicon rubber glass fiber tape and the fireproof layer outside the conductor, so that the service life and the safety performance of the cable are greatly prolonged. The combined action of the water-blocking filling layer, the water-blocking coating layer and the outer sheath layer enables the cable to achieve high water-blocking effect in the radial direction and the longitudinal direction simultaneously, and the cable can be placed in water for long time.
The present invention will be further explained with reference to the drawings and examples.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
The cable comprises a cable core 1, a water-blocking coating layer 2, an inner protective layer 3, a total shielding layer 4, a fireproof layer 5, an outer protective sleeve layer 6, a water-blocking filling layer 7, a prefabricated bearing line 8, a conductor 11, a fireproof layer 12, an insulating layer 13 and a grading shielding layer 14.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
As shown in fig. 1, the self-supporting fire-resistant waterproof computer cable of the present invention comprises a prefabricated load-bearing line 8 located at the center, wherein a plurality of cable cores 1 are arranged outside the prefabricated load-bearing line 8, and the plurality of cable cores 1 and the prefabricated load-bearing line 8 are twisted into a cable in a star-shaped manner; the cable comprises a plurality of cable cores 1, wherein water-blocking coating layers 2 are wrapped outside the cable cores 1, and water-blocking filling layers 7 are arranged between the water-blocking coating layers 2 and the cable cores 1; the outside of the water blocking coating layer 2 sequentially comprises an inner protective layer 3, a total shielding layer 4, a fireproof layer 5 and an outer sheath layer 6 from inside to outside.
Specifically, the cable core 1 comprises two twisted-pair insulated wire cores and a itemized shielding layer 14 coated outside the two insulated wire cores; and the insulated wire core is sequentially provided with a conductor 11, a fire-resistant layer 12 and an insulating layer 13 from inside to outside. Preferably, the conductor 11 is made of a soft copper conductor conforming to the specification of GB/T3956; the material of the fire-resistant layer 12 is a calcined mica tape; the insulating layer 13 is made of fluororubber. The insulating core with the oversheath layer has good bending property jointly, can make the cable use in the abominable narrow and small space of condition.
Specifically, the item shielding layer 14 includes an inner item shielding layer and an outer item shielding layer, and the inner item shielding layer is made of a double-sided aluminum-plastic composite tape; the outer item-dividing shielding layer is formed by weaving tinned soft copper wires, and the weaving density is not less than 80%. The item shield layer 14 ensures transmission signal fidelity and is corrosion resistant.
Specifically, the number of the cable cores is at least 3. Preferably, in this embodiment, the number of the cable cores is three, the three cable cores are arranged outside the prefabricated load-bearing line, and the three cable cores and the prefabricated load-bearing line are stranded into a cable in a star shape.
Specifically, the inner sheath layer 3 and the outer sheath layer 6 are made of halogen-free low-smoke flame-retardant polyolefin. The material is low in smoke and halogen-free, has good flame retardant effect, excellent physical and mechanical and electrical properties, corrosion resistance, high and low temperature resistance, water resistance and other properties.
Specifically, the total shielding layer 4 comprises an inner shielding layer and an outer shielding layer, the inner shielding layer is coated outside the water blocking coating layer, and the outer shielding layer is coated outside the inner shielding layer; the inner shielding layer is made of a double-sided aluminum-plastic composite belt; the outer shielding layer is formed by weaving tinned soft copper wires, and the weaving density is not less than 80%.
Specifically, the fireproof layer 5 is made of a ceramic silicon rubber glass fiber tape material. The ceramic silicon rubber glass fiber tape can quickly form a ceramic protective layer when encountering fire, and the ceramic protective layer and the fire-resistant layer 12 outside the conductor jointly act to achieve the fire-resistant effect of the cable, so that the service life and the safety performance of the cable are greatly prolonged.
Preferably, in this embodiment, the filling material of the water-blocking filling layer 7 is water-blocking yarn. The arrangement of the water-blocking yarns avoids displacement between the cable cores, so that the cable pairs are more stable, when water enters, the water-blocking yarns expand rapidly to achieve a longitudinal water-blocking effect, and achieve good water-blocking performance in the warp direction and the longitudinal direction together with the inner protection layer 3 and the outer sheath layer 6, so that the quality of products is improved, and the service life of the products is prolonged.
The present invention is not limited to the above embodiment, and various modifications and variations of the present invention are also intended to be included within the scope of the claims and the equivalent technical scope of the present invention if they do not depart from the spirit and scope of the present invention.

Claims (10)

1. A self-supporting fire-resistant waterproof computer cable is characterized by comprising a prefabricated bearing line positioned in the center, wherein a plurality of cable cores are arranged outside the prefabricated bearing line, and the cable cores and the prefabricated bearing line are stranded into a cable in a star shape; the cable cores are wrapped with water-blocking coating layers, and water-blocking filling layers are arranged between the water-blocking coating layers and the cable cores; the outside of the water blocking coating layer sequentially comprises an inner protection layer, a total shielding layer, a fireproof layer and an outer sheath layer from inside to outside.
2. The self-supporting fire-resistant waterproof computer cable according to claim 1, wherein the cable core comprises two twisted-pair insulated wire cores and a separate shielding layer covering the outside of the two insulated wire cores; and the insulating wire core is sequentially provided with a conductor, a fire-resistant layer and an insulating layer from inside to outside.
3. A self-supporting fire-resistant and water-resistant computer cable according to claim 2, wherein the conductor is made of a soft copper conductor in accordance with the specification of GB/T3956; the fire-resistant layer is made of calcined mica tapes; the insulating layer is made of fluororubber.
4. A self-supporting fire-resistant and water-resistant computer cable according to claim 1, wherein the inner sheath layer and the outer sheath layer are both made of a halogen-free low-smoke flame-retardant polyolefin.
5. The self-supporting fire-resistant and water-resistant computer cable of claim 1, wherein the filler material of the water-blocking filler layer is water-blocking yarn.
6. A self-supporting fire-resistant and water-resistant computer cable as in claim 1, wherein the fire-resistant layer is made of ceramic silicone rubber fiberglass tape material.
7. The self-supporting fire-resistant and water-resistant computer cable according to claim 1, wherein the material of the pre-formed load-bearing wire is a stainless steel wire material.
8. A self-supporting fire-resistant waterproof computer cable according to any one of claims 1 to 7, characterized in that the number of cable cores is at least 3.
9. The self-supporting fire-resistant and waterproof computer cable according to claim 8, wherein the total shield layer comprises an inner shield layer and an outer shield layer, the inner shield layer is coated outside the water-blocking coating layer, and the outer shield layer is coated outside the inner shield layer; the inner shielding layer is made of a double-sided aluminum-plastic composite belt; the outer shielding layer is formed by weaving tinned soft copper wires, and the weaving density is not less than 80%.
10. The self-supporting fire-resistant waterproof computer cable according to claim 2, wherein the item shielding layer comprises an inner item shielding layer and an outer item shielding layer, and the inner item shielding layer is made of a double-sided aluminum-plastic composite tape; the outer item-dividing shielding layer is formed by weaving tinned soft copper wires, and the weaving density is not less than 80%.
CN201921104139.5U 2019-07-15 2019-07-15 Self-supporting fire-resistant waterproof computer cable Active CN209880225U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921104139.5U CN209880225U (en) 2019-07-15 2019-07-15 Self-supporting fire-resistant waterproof computer cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921104139.5U CN209880225U (en) 2019-07-15 2019-07-15 Self-supporting fire-resistant waterproof computer cable

Publications (1)

Publication Number Publication Date
CN209880225U true CN209880225U (en) 2019-12-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
CN (1) CN209880225U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112201391A (en) * 2020-10-12 2021-01-08 广东奥美格传导科技股份有限公司 Low-temperature-resistant waterproof charging pile cable and production process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112201391A (en) * 2020-10-12 2021-01-08 广东奥美格传导科技股份有限公司 Low-temperature-resistant waterproof charging pile cable and production process

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