CN202758643U - A low-voltage fire-resistant wire - Google Patents
A low-voltage fire-resistant wire Download PDFInfo
- Publication number
- CN202758643U CN202758643U CN 201220465689 CN201220465689U CN202758643U CN 202758643 U CN202758643 U CN 202758643U CN 201220465689 CN201220465689 CN 201220465689 CN 201220465689 U CN201220465689 U CN 201220465689U CN 202758643 U CN202758643 U CN 202758643U
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- fire
- resistant
- conductor
- wire core
- low
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- Expired - Fee Related
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Abstract
The utility model discloses a low-voltage fire-resistant wire comprising a wire core, an insulating layer wrapped round the wire core in an extruding manner, and an outer sheath wrapped round the insulating layer in an extruding manner. The wire core comprises a conductor produced by conductive material and a fire-resistant layer wrapped round the conductor. The fire-resistant layer employs double layers ceramic fireproof and fire-resistant composite belts which are overlapped and which are wrapped round the conductor. The low-voltage fire-resistant wire satisfies inflaming retarding, fire-resistant, and environment friendly requirements and has characteristics of simple structure, light weight, little product external diameter, high production efficiency, and strong equipment universality.
Description
Technical field
The utility model relates to a kind of low pressure fire-resistant wires, especially a kind of low pressure fire-resistant wires that fire prevention, fire-resistant, fire-retardant, high temperature resistant, environmental-protection function are arranged.
Background technology
Nowadays, there is electric wire fire-retardant, fire-resistant, high temperature resistant, environmental requirement more and more to be accepted by broad masses, also be used in more and more various places, the appearance with product of these characteristics to have benefited from electric wire with the exploitation of new material and industry technology personnel to ground improvement and bring new ideas such as technique, technology.Electric wire fire-retardant to have, fire-resistance property is example, traditional fire-retardant, fire-resistant class electric wire need to rely on the structure of more complicated and too much auxiliary material to guarantee the fire-retardant of product usually, fire-resistance property, take common ZAN-BVV 450/750V electric wire as example, traditional structure in the past is conductor-wrapped oxygen barrier band-wrapped mica tape-wrapped oxygen barrier band-extruded insulation layer-extrude outer jacket, overall structure particularly fire-resistant layer structure is complicated, and production cost is high, and effect is low.
Summary of the invention
The purpose of this utility model provides a kind ofly possesses excellent fire-retardant, fire-resistant, high temperature resistant, environmental-protecting performance, and low pressure fire-resistant wires simple in structure, that external diameter is little.
Low pressure fire-resistant wires of the present utility model comprises the electric wire core, extrude the insulating barrier on described electric wire core, and extrude outer jacket on described insulating barrier, described electric wire core comprises the conductor made by electric conducting material and wrapped at the outer field flame retardant coating of described conductor, and described flame retardant coating is wrapped on described conductor by ceramic fireproof＝fire-proof composite band double-layer overlapping.Wherein, described insulating barrier and outer jacket are all selected 105 ℃ of irradiation crosslinked polyolefin insulating material by the RoHS instruction.
Low pressure fire-resistant wires of the present utility model adopts the fire-resistant composite band of wrapped two-layer ceramic chemoprevention fire as flame retardant coating, not only passed through smoothly fire-retardant, fire resistance test, and it improves structure and traditional fire-resistant wires relatively has following characteristics:
1. flame retardant coating is thinner, makes the follow-up insulating barrier of flame retardant coating, outer sheath material consumption few;
2. fire-resistant and bunchy burning category-A is tested the display effect excellence;
3. simplify on the structure, saved the wrapped operation of twice, saved the production time, improved production efficiency, and production does not need to increase special installation.
Low pressure fire-resistant wires of the present utility model satisfies fire-retardant, fire-resistant, environmental requirement, the normal operation that electric wire still can keep certain hour when fire occured, and insulating barrier and outer jacket can not produce a large amount of poisonous and harmful substances when burning, do not produce a large amount of smog yet, the material that discharges can reach the RoHS command request, almost human and environment is not damaged, escape and rescue work are brought very large help, greatly reduce the loss of life and property.In addition, low pressure fire-resistant wires of the present utility model is simple in structure, lightweight, and the product external diameter is little, and production efficiency is high, and equipment interoperability is strong.
Description of drawings
Fig. 1 is the structural representation of the utility model low pressure fire-resistant wires.
Among the figure: 1-conductor; 2-flame retardant coating; 3-insulating barrier; 4-outer jacket.
Embodiment
Below pass through specific embodiment, and the utility model is described in further detail by reference to the accompanying drawings.
The structure of low pressure fire-resistant wires comprises conductor 1, flame retardant coating 2, insulating barrier 3 and outer jacket 4 as shown in Figure 1 from inside to outside successively.Conductor 1 adopts the 1st kind of solid conductor or the 2nd kind of twisted copper conductors structure that meets GB/T 3956-2008 regulation, flame retardant coating 2 adopts the ceramic fireproof＝fire-proof composite band that is composited by ceramic fireproof＝fire-proof silicon rubber and the calendering of high temperature resistance glass fiber cloth, ceramic fireproof＝fire-proof composite band flame retardant coating 2 double-layer overlappings of tack are wrapped on copper conductor 1, make it tight, overlapping wrapped at conductor 1 outer formation electric wire core.Selection extrudes on the electric wire core by 105 ℃ of irradiation crosslinked polyolefin insulating material insulating barriers 3 of RoHS instruction, and is extruded with outer jacket 4 at insulating barrier 3, outer jacket 4 same 105 ℃ of irradiation crosslinked polyolefin insulating material selecting by the RoHS instruction.
The performances such as the low pressure fire-resistant wires of the present embodiment is fire-retardant, fire-resistant, high temperature resistant, environmental protection all meet design requirement and instructions for use, and its every technical performance index is: 1. the D.C. resistance maximum meets GB/T 3956-2008 regulation during 20 ℃ of conductors; 2. more traditional fire-retardant, the fire-resistant wires minimizing 5～8% of cable Unit Weight, the finished product external diameter is than the little 0.6～1.5mm of traditional structure; 3. insulating barrier, outer jacket are melted by burning under 350～3000 ℃ of flames or nonflame condition, but ceramic fireproof＝fire-proof composite band can form ceramic-like armouring thermal insulation layer, become one isolated protective layer of most critical; 4. the highest normal working temperature of cable can reach 105 ℃; 5. the cable fire grade can reach the A grade standard that GB12666.6 requires, and fire resistance can be by the ripe burning test of fire-retardant category-A.
Claims (1)
1. low pressure fire-resistant wires, comprise the electric wire core, extrude the insulating barrier on described electric wire core, and extrude outer jacket on described insulating barrier, it is characterized in that described electric wire core comprises the conductor made by electric conducting material and wrapped at the outer field flame retardant coating of described conductor, described flame retardant coating is wrapped on described conductor by ceramic fireproof＝fire-proof composite band double-layer overlapping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220465689 CN202758643U (en) | 2012-09-13 | 2012-09-13 | A low-voltage fire-resistant wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220465689 CN202758643U (en) | 2012-09-13 | 2012-09-13 | A low-voltage fire-resistant wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202758643U true CN202758643U (en) | 2013-02-27 |
Family
ID=47737812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220465689 Expired - Fee Related CN202758643U (en) | 2012-09-13 | 2012-09-13 | A low-voltage fire-resistant wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202758643U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106128609A (en) * | 2016-08-30 | 2016-11-16 | 山东科虹线缆科技股份有限公司 | Safe environment protection type electric automobile charging pile cable and manufacture method thereof |
-
2012
- 2012-09-13 CN CN 201220465689 patent/CN202758643U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106128609A (en) * | 2016-08-30 | 2016-11-16 | 山东科虹线缆科技股份有限公司 | Safe environment protection type electric automobile charging pile cable and manufacture method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130227 Termination date: 20150913 |
|
| EXPY | Termination of patent right or utility model |