CN204596522U - A kind of fire-retardant fireproof power cable - Google Patents
A kind of fire-retardant fireproof power cable Download PDFInfo
- Publication number
- CN204596522U CN204596522U CN201520196626.4U CN201520196626U CN204596522U CN 204596522 U CN204596522 U CN 204596522U CN 201520196626 U CN201520196626 U CN 201520196626U CN 204596522 U CN204596522 U CN 204596522U
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- teflon insulation
- fire
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- inner sleeve
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Abstract
The utility model discloses a kind of fire-retardant fireproof power cable, comprise cable core, cable core is combined by an insulated wire cores and four reinforced cores; At cable core outer wrapped fire-resistant wrapping tape layer and insulating jacket layer successively; The utility model by insulation system is set to two-layer and arrange between the two layers brace can make two-layer between fill air, improve the insulation effect of integral insulation structure, part brace is replaced with support chip and can take into account flexibility and firmness, support chip is set to inside and outside isolating construction and can prevents body excessive deformation when bending simultaneously; Fire-resistant wrapping tape layer is rolled to meet by ceramic fireproof silicone rubber and high temperature resistance glass fiber cloth and forms; start hardening under 350 DEG C and above flame or nonflame condition; along with temperature raises; rapidly by complete housing that Low fire ceramic shape is hard; hard complete housing and metal armor layers play a very good protection to circuit, ensure circuit in case of fire unobstructed.
Description
Technical field
The utility model relates to field of cable technology, is specially a kind of fire-retardant fireproof power cable.
Background technology
Along with the development of society, 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.Electric wire both can transmission & distribution electric energy, transmission of information, be again fire hazardous " blasting fuse ", but common cable just cannot be energized once burned when actual breaking out of fire.But during many important events event of fire, the illumination of evacuating personnel, passage, fire protection alarm device, automatic fire-fighting facility and other emergency set all require electricity.
Fireproof cable refers to that, under regulation experimental condition, sample is burned in flame, still keeps the normal performance run within a certain period of time.Its basic feature is exactly: power cable still can maintain the normal work of this circuit a period of time under burning condition.Be exactly generally that fireproof power cable can maintain the normal power supply of a period of time when fire occurs, to maintain illumination and signal transmission, protection personnel have time enough safe escape, and are beneficial to fire extinguishing and reduce the loss.
At present, Ceramic silicon rubber fire proof power cable Shortcomings part both domestic and external is, its Ceramic silicon rubber fireprotection layer all adopts the mode of extruding, this extrudes the processing technology complexity that mode not only increases production process, product, and add the rejection number of material, contaminated environment, causes the waste of material, adds production cost; That the insulation system of this cable is generally solid insulation system in addition, in order to reinforced insulation effect needs the thickness constantly strengthening insulation system, such structure not only wastes material, add cost of manufacture, and and insulate, the flexural property of heatproof, corrosion resistance and cable body is all unsatisfactory, do not reach user demand, urgently improve.
Utility model content
The purpose of this utility model is to provide a kind of fire-retardant fireproof power cable, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of fire-retardant fireproof power cable, comprise cable core, cable core is combined by an insulated wire cores and four reinforced cores; Be provided with packed layer in cable core gap, packed layer adopts asbestos cord; At cable core outer wrapped fire-resistant wrapping tape layer and insulating jacket layer successively; Four described strengthening cores are connected to the side, upper and lower, left and right of insulated wire cores respectively by plastic fastening, and are symmetrical centre with insulated wire cores, and 90 ° of intervals are uniformly distributed; Described insulating jacket layer comprises the teflon insulation inner sleeve of annular and the teflon insulation overcoat of annular, teflon insulation outer wall of inside race is provided with to extraradial brace, brace is wedge shape and arranges along described teflon insulation inner sleeve radial direction, and described brace is radially arranged around teflon insulation outer wall of inside race; The inner side of described brace is connected with teflon insulation inner sleeve, is connected outside brace with teflon insulation overcoat; Also support chip is provided with in described insulating case; Described brace and support chip around the outer wall of teflon insulation inner sleeve and the inwall of teflon insulation overcoat and uniform intervals arrange; The Exterior Supporting Plate that described support chip comprises inside spider and coordinates with inside spider; Described inside spider is arranged along radial in described teflon insulation, and described Exterior Supporting Plate is arranged along described teflon insulation overcoat radial direction, and Exterior Supporting Plate is around teflon insulation outer casing inner wall and in convergent manner; Support interval is provided with between described inside spider outer rim and Exterior Supporting Plate inner edge; Described inside spider outer rim is circular protrusions, and described inside spider inner edge is the arc-shaped recess coordinated with circular protrusions.
As the utility model further technical scheme, described brace and teflon insulation inner sleeve and teflon insulation overcoat are wholely set; Described inside spider and teflon insulation inner sleeve are wholely set; Described Exterior Supporting Plate and teflon insulation overcoat are wholely set.
As the utility model further technical scheme, described insulated wire cores is by conductor and be coated on conductor flame retardant coating outside conductor successively, insulating barrier, screen, armour form; Reinforced core is by steel wire rope and be extruded in protective layer outside steel wire rope, metal armor layers forms.
Compared with prior art, the utility model by insulation system is set to two-layer and arrange between the two layers brace can make two-layer between fill air, improve the insulation effect of integral insulation structure, uniform brace can ensure the intensity of insulation system, part brace is replaced with support chip and can take into account flexibility and firmness, support chip is set to inside and outside isolating construction and can prevents body excessive deformation when bending simultaneously; Fire-resistant wrapping tape layer is rolled to meet by ceramic fireproof silicone rubber and high temperature resistance glass fiber cloth and forms; start hardening under 350 DEG C and above flame or nonflame condition; along with temperature raises; rapidly by complete housing that Low fire ceramic shape is hard; hard complete housing and metal armor layers play a very good protection to circuit, ensure circuit in case of fire unobstructed.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of fire-retardant fireproof power cable of the utility model.
Embodiment
Be described in more detail below in conjunction with the technical scheme of embodiment to this patent.
Refer to Fig. 1, a kind of fire-retardant fireproof power cable, comprises cable core, and cable core is combined by an insulated wire cores 1 and four reinforced cores 5; Be provided with packed layer 4 in cable core gap, packed layer 4 adopts asbestos cord; At cable core outer wrapped fire-resistant wrapping tape layer 6 and insulating jacket layer 3 successively; Four described strengthening cores 5 are connected to the side, upper and lower, left and right of insulated wire cores 1 respectively by plastic fastening 2, and with insulated wire cores 1 for symmetrical centre, 90 ° of intervals are uniformly distributed; Described insulating jacket layer 3 comprises the teflon insulation inner sleeve 36 of annular and the teflon insulation overcoat 31 of annular, teflon insulation inner sleeve 36 outer wall is provided with to extraradial brace 35, brace 35 is in wedge shape and along the setting of described teflon insulation inner sleeve 36 radial direction, described brace 35 is radially arranged around teflon insulation inner sleeve 36 outer wall; The inner side of described brace 35 is connected with teflon insulation inner sleeve 36, is connected outside brace 35 with teflon insulation overcoat 31; Also support chip is provided with, the Exterior Supporting Plate 2 that described support chip comprises inside spider 34 and coordinates with inside spider 34 in described insulating case; Described inside spider 34 is arranged along described teflon insulation inner sleeve 36 radial direction, and described Exterior Supporting Plate 32 is arranged along described teflon insulation overcoat 31 radial direction, and Exterior Supporting Plate 32 is around teflon insulation overcoat 31 inwall and in convergent manner; Support interval 33 is provided with between described inside spider 34 outer rim and Exterior Supporting Plate 32 inner edge; Described brace 35 and support chip around the outer wall of teflon insulation inner sleeve 36 and the inwall of teflon insulation overcoat 31 and uniform intervals arrange; Described inside spider 34 outer rim is circular protrusions, and described inside spider 34 inner edge is the arc-shaped recess coordinated with circular protrusions.Described brace 35 is wholely set with teflon insulation inner sleeve 36 and teflon insulation overcoat 31; Described inside spider 34 is wholely set with teflon insulation inner sleeve 36; Described Exterior Supporting Plate 32 is wholely set with teflon insulation overcoat 31.
Described insulated wire cores 1 is by conductor 11 and be coated on conductor flame retardant coating 12 outside conductor 11 successively, insulating barrier 13, screen 14, armour 5 form; Described reinforced core 5 is by steel wire rope 51 and be extruded in protective layer 52 outside steel wire rope 51, metal armor layers 53 forms.
The utility model by insulation system is set to two-layer and arrange between the two layers brace can make two-layer between fill air, improve the insulation effect of integral insulation structure, uniform brace can ensure the intensity of insulation system, part brace is replaced with support chip and can take into account flexibility and firmness, support chip is set to inside and outside isolating construction and can prevents body excessive deformation when bending simultaneously; Fire-resistant wrapping tape layer is rolled to meet by ceramic fireproof silicone rubber and high temperature resistance glass fiber cloth and forms; start hardening under 350 DEG C and above flame or nonflame condition; along with temperature raises; rapidly by complete housing that Low fire ceramic shape is hard; hard complete housing and metal armor layers play a very good protection to circuit, ensure circuit in case of fire unobstructed.
Above the better embodiment of this patent is explained in detail, but this patent is not limited to above-mentioned execution mode, in the ken that one skilled in the relevant art possesses, various change can also be made under the prerequisite not departing from this patent aim.
Claims (3)
1. a fire-retardant fireproof power cable, is characterized in that, comprises cable core, and cable core is combined by an insulated wire cores and four reinforced cores; Be provided with packed layer in cable core gap, packed layer adopts asbestos cord; At cable core outer wrapped fire-resistant wrapping tape layer and insulating jacket layer successively; Four described strengthening cores are connected to the side, upper and lower, left and right of insulated wire cores respectively by plastic fastening, and are symmetrical centre with insulated wire cores, and 90 ° of intervals are uniformly distributed; Described insulating jacket layer comprises the teflon insulation inner sleeve of annular and the teflon insulation overcoat of annular, teflon insulation outer wall of inside race is provided with to extraradial brace, brace is wedge shape and arranges along described teflon insulation inner sleeve radial direction, and described brace is radially arranged around teflon insulation outer wall of inside race; The inner side of described brace is connected with teflon insulation inner sleeve, is connected outside brace with teflon insulation overcoat; Also support chip is provided with in described insulating case; Described brace and support chip around the outer wall of teflon insulation inner sleeve and the inwall of teflon insulation overcoat and uniform intervals arrange; The Exterior Supporting Plate that described support chip comprises inside spider and coordinates with inside spider; Described inside spider is arranged along radial in described teflon insulation, and described Exterior Supporting Plate is arranged along described teflon insulation overcoat radial direction, and Exterior Supporting Plate is around teflon insulation outer casing inner wall and in convergent manner; Support interval is provided with between described inside spider outer rim and Exterior Supporting Plate inner edge; Described inside spider outer rim is circular protrusions, and described inside spider inner edge is the arc-shaped recess coordinated with circular protrusions.
2. a kind of fire-retardant fireproof power cable according to claim 1, is characterized in that, described brace and teflon insulation inner sleeve and teflon insulation overcoat are wholely set; Described inside spider and teflon insulation inner sleeve are wholely set; Described Exterior Supporting Plate and teflon insulation overcoat are wholely set.
3. a kind of fire-retardant fireproof power cable according to claim 1, is characterized in that, described insulated wire cores is by conductor and be coated on conductor flame retardant coating outside conductor successively, insulating barrier, screen, armour form; Reinforced core is by steel wire rope and be extruded in protective layer outside steel wire rope, metal armor layers forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520196626.4U CN204596522U (en) | 2015-04-03 | 2015-04-03 | A kind of fire-retardant fireproof power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520196626.4U CN204596522U (en) | 2015-04-03 | 2015-04-03 | A kind of fire-retardant fireproof power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204596522U true CN204596522U (en) | 2015-08-26 |
Family
ID=53932650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520196626.4U Expired - Fee Related CN204596522U (en) | 2015-04-03 | 2015-04-03 | A kind of fire-retardant fireproof power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204596522U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107180673A (en) * | 2017-05-27 | 2017-09-19 | 宜昌红旗中泰电缆有限公司 | Environment-friendly cable |
| CN107424681A (en) * | 2017-09-07 | 2017-12-01 | 兰州众邦电线电缆集团有限公司 | A kind of single-phase cellular-type concentric cable of LSOH anti-flaming fire safe type |
-
2015
- 2015-04-03 CN CN201520196626.4U patent/CN204596522U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107180673A (en) * | 2017-05-27 | 2017-09-19 | 宜昌红旗中泰电缆有限公司 | Environment-friendly cable |
| CN107180673B (en) * | 2017-05-27 | 2018-12-21 | 宜昌红旗中泰电缆有限公司 | Environment-friendly cable |
| CN107424681A (en) * | 2017-09-07 | 2017-12-01 | 兰州众邦电线电缆集团有限公司 | A kind of single-phase cellular-type concentric cable of LSOH anti-flaming fire safe type |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 Termination date: 20180403 |