CN209962749U - Copper-core flame-retardant polyvinyl chloride insulated wire - Google Patents
Copper-core flame-retardant polyvinyl chloride insulated wire Download PDFInfo
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- CN209962749U CN209962749U CN201921074700.XU CN201921074700U CN209962749U CN 209962749 U CN209962749 U CN 209962749U CN 201921074700 U CN201921074700 U CN 201921074700U CN 209962749 U CN209962749 U CN 209962749U
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Abstract
The utility model provides a fire-retardant polyvinyl chloride insulated wire of copper core relates to a wire and cable technical field. The utility model discloses an be in including cable body and setting this internal copper core of cable, the copper core includes the same first copper core of structure, second copper core and third copper core, be provided with the flame tube between first copper core, second copper core and the third copper core, the cladding has first shielding layer on the first copper core, the cladding has first fire-retardant polyvinyl chloride layer on the first shielding layer, the cladding has the second shielding layer on the second copper core, the cladding has the fire-retardant polyvinyl chloride layer of second on the second shielding layer, the cladding has the third shielding layer on the third copper core, the cladding has the fire-retardant polyvinyl chloride layer of third on the third shielding layer. The utility model discloses simple structure, the reduction short circuit that can be by a wide margin takes place, reduces the disaster situation, has effectively improved the fire resistive characteristic of product, has promoted the fire-protection rating of product for the expansion that the range of application of product obtained.
Description
Technical Field
The utility model relates to a wire and cable technical field especially relates to a fire-retardant polyvinyl chloride insulated wire of copper core.
Background
Disasters brought to human by fire disasters are disastrous, loss is huge, and fire disaster loss is in an ascending trend along with economic development and urban construction development, so that great attention is paid to fire prevention and control at home and abroad. The cable is used as one of important generating sources and spreading sources of fire disasters, and when the cable is burnt, personnel die due to the generation of a large amount of toxic and harmful gases, equipment is damaged, and the personnel cannot evacuate timely due to serious smoke, so that disasters are affected more and more seriously.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects existing in the problems, the utility model provides a copper core flame-retardant polyvinyl chloride insulated wire, which has simple structure, can greatly reduce short circuit and reduce disaster; the fireproof performance of the product is effectively improved, the fireproof grade of the product is improved, and the application range of the product is expanded.
In order to solve the problem, the utility model provides a fire-retardant polyvinyl chloride insulated wire of copper core, wherein, be in including cable body and setting this internal copper core of cable, the copper core includes the same first copper core of structure, second copper core and third copper core, first copper core the second copper core with third copper core finished product font sets up, first copper core the second copper core with be provided with the flame retardant joint between the third copper core, the cladding has first shielding layer on the first copper core, the cladding has first fire-retardant polyvinyl chloride layer on the first shielding layer, the cladding has the second shielding layer on the second copper core, the cladding has the fire-retardant polyvinyl chloride layer of second on the second shielding layer, the cladding has the third shielding layer on the third copper core, the cladding has the fire-retardant polyvinyl chloride layer of third on the third shielding layer.
Preferably, the cable body includes insulating shield, fire-resistant insulating layer and high temperature resistant coating, armor and the flexible polyvinyl chloride restrictive coating that from interior to exterior set gradually, the cladding of fire-resistant insulating layer is in on the insulating shield, the cladding of high temperature resistant coating is in on the fire-resistant insulating layer, the cladding of armor is in on the high temperature resistant coating, the cladding of flexible polyvinyl chloride restrictive coating is in on the armor.
Preferably, the first shielding layer, the second shielding layer and the third shielding layer are all formed by extruding a semiconductive shielding material.
Preferably, a plurality of fire-proof filling ropes which are uniformly distributed are arranged on the fire-proof heat-insulating layer.
Preferably, the armor layer is formed by longitudinally wrapping nonmagnetic stainless steel strips with sub-arc welding embossing.
Preferably, the insulation shielding layer is formed by extruding a cross-linking type semi-conductive shielding material.
Preferably, the fireproof heat-insulating layer is a composite fireproof heat-insulating layer made of a ceramic fireproof and fireproof composite belt.
Preferably, the high-temperature-resistant coating 6 is a heat-resistant silicon nitrogen glue coating.
Compared with the prior art, the utility model has the advantages of it is following:
the utility model has simple structure, can greatly reduce short circuit and reduce disaster; the fireproof performance of the product is effectively improved, the fireproof grade of the product is improved, and the application range of the product is expanded.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and examples, which are not intended to limit the present invention.
As shown in fig. 1, the embodiment of the utility model provides an it is in with the setting including the cable body copper core in the cable body, the copper core includes the same first copper core 1 of structure, second copper core 2 and third copper core 3, first copper core 1 second copper core 2 with third copper core 3 finished product font sets up, first copper core 1 second copper core 2 with be provided with flame tube 4 between the third copper core 3, the cladding has first shielding layer 5 on the first copper core 1, the cladding has first fire-retardant polyvinyl chloride layer 6 on the first shielding layer 5, the cladding has the second shielding layer on the second copper core 2, the cladding has the fire-retardant polyvinyl chloride layer of second on the second shielding layer, the cladding has the third shielding layer on the third copper core 3, the cladding has the fire-retardant polyvinyl chloride layer of third on the third shielding layer.
The cable body includes insulating shield 7, fire-resistant insulating layer 8 and high temperature resistant coating 9, armor 10 and flexible polyvinyl chloride restrictive coating 11 that from interior to exterior set gradually, the cladding of fire-resistant insulating layer 8 is in on the insulating shield 7, the cladding of high temperature resistant coating 9 is in on the fire-resistant insulating layer 8, the cladding of armor 10 is in on the high temperature resistant coating 9, the cladding of flexible polyvinyl chloride restrictive coating 11 is in on the armor 10.
The fireproof heat insulation layer 5 is provided with a plurality of fireproof filling ropes 9 which are uniformly distributed.
The armor layer 10 is formed by longitudinally wrapping nonmagnetic stainless steel strips with sub-arc welding embossing.
The first shielding layer 5, the second shielding layer and the third shielding layer are all formed by extruding semiconductive shielding materials.
The insulation shielding layer 7 is formed by extruding and wrapping a cross-linking type semi-conductive shielding material.
The fire-resistant heat-insulating layer 8 is a composite fire-resistant heat-insulating layer made of a ceramic fire-resistant and fire-resistant composite tape.
The high-temperature resistant coating 6 is a heat-resistant silicon nitrogen glue coating.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The utility model provides a fire-retardant polyvinyl chloride insulated wire of copper core, its characterized in that is in including cable body and setting this internal copper core of cable, the copper core includes the same first copper core of structure, second copper core and third copper core, first copper core the second copper core with third copper core finished product font sets up, first copper core the second copper core with be provided with the flame retardant joint between the third copper core, the cladding has first shielding layer on the first copper core, the cladding has first fire-retardant polyvinyl chloride layer on the first shielding layer, the cladding has the second shielding layer on the second copper core, the cladding has the fire-retardant polyvinyl chloride layer of second on the second shielding layer, the cladding has the third shielding layer on the third copper core, the cladding has the fire-retardant polyvinyl chloride layer of third on the third shielding layer.
2. The copper-core flame-retardant polyvinyl chloride insulated wire according to claim 1, wherein the cable body comprises an insulation shielding layer, a fire-resistant thermal insulation layer, a high-temperature-resistant coating, an armor layer and a flexible polyvinyl chloride sheathing layer which are arranged in sequence from inside to outside, the fire-resistant thermal insulation layer is coated on the insulation shielding layer, the high-temperature-resistant coating is coated on the fire-resistant thermal insulation layer, the armor layer is coated on the high-temperature-resistant coating, and the flexible polyvinyl chloride sheathing layer is coated on the armor layer.
3. The copper-cored flame-retardant polyvinyl chloride insulated wire according to claim 2, wherein the first shield layer, the second shield layer and the third shield layer are each formed by extruding a semiconductive shield material.
4. The copper-core flame-retardant polyvinyl chloride insulated wire according to claim 3, wherein a plurality of uniformly distributed fire-retardant filling ropes are disposed on the fire-resistant insulating layer.
5. The copper-cored flame-retardant polyvinyl chloride insulated wire of claim 4, wherein the armor layer is formed by longitudinally-wrapped sub-arc welding embossing of a non-magnetic stainless steel strip.
6. The copper-cored flame-retardant polyvinyl chloride insulated wire of claim 5, wherein the insulation shield layer is formed by extruding a cross-linked semiconductive shield material.
7. The copper-core flame-retardant polyvinyl chloride insulated wire according to claim 6, wherein the fire-resistant heat-insulating layer is a composite fire-resistant heat-insulating layer made of a ceramic fire-resistant composite tape.
8. The copper-core flame-retardant polyvinyl chloride insulated wire according to claim 7, wherein the high-temperature-resistant coating 6 is a heat-resistant silicon-nitrogen glue coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921074700.XU CN209962749U (en) | 2019-07-10 | 2019-07-10 | Copper-core flame-retardant polyvinyl chloride insulated wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921074700.XU CN209962749U (en) | 2019-07-10 | 2019-07-10 | Copper-core flame-retardant polyvinyl chloride insulated wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209962749U true CN209962749U (en) | 2020-01-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921074700.XU Active CN209962749U (en) | 2019-07-10 | 2019-07-10 | Copper-core flame-retardant polyvinyl chloride insulated wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209962749U (en) |
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2019
- 2019-07-10 CN CN201921074700.XU patent/CN209962749U/en active Active
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