CN203377015U - Polyvinyl chloride insulation polyvinyl chloride sheath multilayer fireproof multi-core cable - Google Patents
Polyvinyl chloride insulation polyvinyl chloride sheath multilayer fireproof multi-core cable Download PDFInfo
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- CN203377015U CN203377015U CN201320439647.5U CN201320439647U CN203377015U CN 203377015 U CN203377015 U CN 203377015U CN 201320439647 U CN201320439647 U CN 201320439647U CN 203377015 U CN203377015 U CN 203377015U
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- polyvinyl chloride
- flame retardant
- core
- retardant coating
- wrapped
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Abstract
The utility model discloses a polyvinyl chloride insulation polyvinyl chloride sheath multilayer fireproof multi-core cable comprising a cable core. The cable core is constituted by a plurality of wire cores, which are intertwisted together. Gaps in the cable core are filled with filling cores, and the cable core is wrapped by a glass fiber band. The glass fiber band is wrapped by a third fireproof layer in an extruded manner, and the third fireproof layer is provided with a metal armoring layer in a braided manner. The outmost layer of the cable core is wrapped by a polyvinyl chloride outer sheath in an extruded manner. Each of the wire cores is constituted by a conductor, a polyvinyl chloride insulation layer disposed on an outer side of the conductor in an extruded-wrapped manner, a first fireproof layer disposed on an outer side of the insulation layer in an extruded-wrapped manner, a shielding layer disposed on an outer side of the first fireproof layer in an extruded-wrapped manner, and a second fireproof layer disposed on an outer side of the shielding layer in an extruded-wrapped manner. The polyvinyl chloride insulation polyvinyl chloride sheath multilayer fireproof multi-core cable has advantages of strong fireproof performance, good flame retardation effect, high insulation reliability, and long service lifetime.
Description
Technical field
The utility model relates to the electric wire field, specifically refers to a kind of polyvinyl chloride-insulated polyvinyl chloride multiple layer refractory multicore cable.
Background technology
Along with social development, the progress of science and technology, numerous power plant, smelter, oil play are to large-scale grouping of the world economy future development, skyscraper, public entertainment place, subway and underground street etc. continue to bring out, and its power consumption grows with each passing day, and the kind of electric wire and consumption be corresponding increase also.But electric wire is transmission & distribution electric energy, transmission of information both, be again " blasting fuse " of fire hazardous, yet once common cable is burned when actual breaking out of fire just can't switch on.But, during many important events contingency breaking out of fires, the illumination of evacuating personnel, passage, fire protection alarm device, automatic fire-fighting facility and other emergency set all require cable can keep normal power-up at the appointed time when fire occurs.Therefore, people work out fireproof cable.
The fire resistance of simultaneously current cable is poor, once breaking out of fire, cable fire can produce a large amount of dense smoke, makes a large amount of rescue works be difficult to carry out, the hydracid corrosive gas discharged during the substance combustion of Halogen, except harmful to human, also can cause certain infringement to equipment.
The utility model content
It is strong that the technical problems to be solved in the utility model is to provide a kind of fire resistance, good flame retardation effect, and insulating reliability is large, the polyvinyl chloride-insulated polyvinyl chloride multiple layer refractory multicore cable of long service life.
A kind of polyvinyl chloride-insulated polyvinyl chloride multiple layer refractory multicore cable described in the utility model, comprise cable core, and described cable core is to form by the several wire core is stranded; Core is filled out in gap in cable core, and cable core outer cladding glass fibre belt extrudes the 3rd flame retardant coating outside glass fibre belt, braided metal armour outside the 3rd flame retardant coating, and the cable core outermost layer extrudes the polyvinyl chloride oversheath; Described core be by conductor and be extruded in the outer polyvinyl chloride insulation layer of conductor, wrapped the first flame retardant coating outside insulating barrier, be extruded in the screen outside the first flame retardant coating, wrapped the second flame retardant coating outside screen forms.
Further improve, described conductor is by many copper wires or aluminium wire is stranded forms.
Further improve, described the first flame retardant coating adopts the mica tape fireproof construction; Described the second flame retardant coating, the 3rd flame retardant coating adopt ceramic silicon rubber fireproof construction.
The beneficial effects of the utility model are:
Compared with prior art, the utility model adopts three layers of fire-resistant layer structure, has greatly improved the fire-resistant effect of cable, effectively prevents that cable from producing a large amount of dense smoke and poisonous corrosive gas comes harmful to human and equipment in the breaking out of fire after-combustion.Insulating barrier, oversheath adopt pvc material, make the good flame retardation effect of cable, and then have extended the useful life of cable.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
embodiment:
As shown in Figure 1, a kind of polyvinyl chloride-insulated polyvinyl chloride multiple layer refractory multicore cable described in the utility model, comprise cable core, and described cable core is to form by the several wire core is stranded; Core 6 is filled out in gap in cable core, and cable core outer cladding glass fibre belt 7 extrudes the 3rd flame retardant coating 8 outside glass fibre belt 7, and at the outer braided metal armour 9 of the 3rd flame retardant coating 8, the cable core outermost layer extrudes polyvinyl chloride oversheath 10; Described core be by conductor 1 and be extruded in the outer polyvinyl chloride insulation layer 2 of conductor 1, wrapped the first flame retardant coating 3 outside insulating barrier 2, be extruded in the screen 4 outside the first flame retardant coating 3, wrapped the second flame retardant coating 5 outside screen 4 forms.Described conductor 1 is by many copper wires or aluminium wire is stranded forms, and described the first flame retardant coating 3 adopts the mica tape fireproof constructions, and described the second flame retardant coating 5, the 3rd flame retardant coating 8 adopt ceramic silicon rubber fireproof constructions.
The utility model provides a kind of polyvinyl chloride-insulated polyvinyl chloride multiple layer refractory multi-core cable structure form and implementation method; the above is only preferred implementation method of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle; can also make some improvement, these improvement also should be considered as protection range of the present utility model.
Claims (4)
1. a polyvinyl chloride-insulated polyvinyl chloride multiple layer refractory multicore cable, comprise cable core, it is characterized in that: described cable core is to form by the several wire core is stranded; Core (6) is filled out in gap in cable core, cable core outer cladding glass fibre belt (7), extrude the 3rd flame retardant coating (8) outside glass fibre belt (7), braided metal armour (9) outside the 3rd flame retardant coating (8), the cable core outermost layer extrudes polyvinyl chloride oversheath (10); Described core is by conductor (1) and is extruded in the outer polyvinyl chloride insulation layer (2) of conductor (1), wrapped the first flame retardant coating (3) insulating barrier (2) outside, is extruded in the screen (4) outside the first flame retardant coating (3), wrapped the second flame retardant coating (5) formation outside screen (4).
2. polyvinyl chloride-insulated polyvinyl chloride multiple layer refractory multicore cable according to claim 1 is characterized in that: described conductor (1) is by many copper wires or aluminium wire is stranded forms.
3. polyvinyl chloride-insulated polyvinyl chloride multiple layer refractory multicore cable according to claim 1, is characterized in that: described the first flame retardant coating (3) employing mica tape fireproof construction.
4. polyvinyl chloride-insulated polyvinyl chloride multiple layer refractory multicore cable according to claim 1, is characterized in that: described the second flame retardant coating (5), the 3rd flame retardant coating (8) employing ceramic silicon rubber fireproof construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320439647.5U CN203377015U (en) | 2013-07-23 | 2013-07-23 | Polyvinyl chloride insulation polyvinyl chloride sheath multilayer fireproof multi-core cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320439647.5U CN203377015U (en) | 2013-07-23 | 2013-07-23 | Polyvinyl chloride insulation polyvinyl chloride sheath multilayer fireproof multi-core cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203377015U true CN203377015U (en) | 2014-01-01 |
Family
ID=49839530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320439647.5U Expired - Lifetime CN203377015U (en) | 2013-07-23 | 2013-07-23 | Polyvinyl chloride insulation polyvinyl chloride sheath multilayer fireproof multi-core cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203377015U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103413605A (en) * | 2013-07-23 | 2013-11-27 | 江苏远方电缆厂有限公司 | Polyvinyl chloride insulation polyvinyl chloride jacket multi-layer fire-resistant multi-core cable |
| CN107958740A (en) * | 2017-10-13 | 2018-04-24 | 安徽庆华电缆有限公司 | A kind of polyvinyl chloride insulation and sheath fire-resistant cable |
| US11237347B2 (en) | 2018-03-12 | 2022-02-01 | Corning Research & Development Corporation | Optical fiber cable with improved fire protection performance |
-
2013
- 2013-07-23 CN CN201320439647.5U patent/CN203377015U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103413605A (en) * | 2013-07-23 | 2013-11-27 | 江苏远方电缆厂有限公司 | Polyvinyl chloride insulation polyvinyl chloride jacket multi-layer fire-resistant multi-core cable |
| CN107958740A (en) * | 2017-10-13 | 2018-04-24 | 安徽庆华电缆有限公司 | A kind of polyvinyl chloride insulation and sheath fire-resistant cable |
| CN107958740B (en) * | 2017-10-13 | 2019-10-29 | 安徽庆华电缆有限公司 | A kind of polyvinyl chloride insulation and sheath fire-resistant cable |
| US11237347B2 (en) | 2018-03-12 | 2022-02-01 | Corning Research & Development Corporation | Optical fiber cable with improved fire protection performance |
| US11579388B2 (en) | 2018-03-12 | 2023-02-14 | Corning Research & Development Corporation | Optical fiber cable with improved fire protection performance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140101 |