CN205177471U - This ampere of type fireproof cable - Google Patents
This ampere of type fireproof cable Download PDFInfo
- Publication number
- CN205177471U CN205177471U CN201520837234.1U CN201520837234U CN205177471U CN 205177471 U CN205177471 U CN 205177471U CN 201520837234 U CN201520837234 U CN 201520837234U CN 205177471 U CN205177471 U CN 205177471U
- Authority
- CN
- China
- Prior art keywords
- sheath
- adopts
- type fireproof
- fireproof cable
- mineral
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000004020 conductor Substances 0.000 claims abstract description 27
- 239000003063 flame retardant Substances 0.000 claims abstract description 13
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 11
- 230000007613 environmental effect Effects 0.000 claims abstract description 6
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 44
- 230000004888 barrier function Effects 0.000 claims description 20
- 239000011707 mineral Substances 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 16
- 239000002131 composite material Substances 0.000 claims description 14
- 239000002086 nanomaterial Substances 0.000 claims description 14
- 230000002401 inhibitory effect Effects 0.000 claims description 10
- 230000009970 fire resistant effect Effects 0.000 claims description 7
- 239000011159 matrix material Substances 0.000 claims description 6
- 239000012752 auxiliary agent Substances 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 208000001308 Fasciculation Diseases 0.000 claims description 3
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 3
- 229910021502 aluminium hydroxide Inorganic materials 0.000 claims description 3
- 239000011230 binding agent Substances 0.000 claims description 3
- 238000004049 embossing Methods 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 3
- 239000000347 magnesium hydroxide Substances 0.000 claims description 3
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 239000012764 mineral filler Substances 0.000 claims description 3
- 229920000098 polyolefin Polymers 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 239000000779 smoke Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 231100000252 nontoxic Toxicity 0.000 abstract description 5
- 230000003000 nontoxic effect Effects 0.000 abstract description 5
- 230000009967 tasteless effect Effects 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000011248 coating agent Substances 0.000 abstract 2
- 238000000576 coating method Methods 0.000 abstract 2
- 238000002955 isolation Methods 0.000 abstract 2
- 230000032683 aging Effects 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 18
- 229910000838 Al alloy Inorganic materials 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 229920003020 cross-linked polyethylene Polymers 0.000 description 2
- 239000004703 cross-linked polyethylene Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004079 fireproofing Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002114 nanocomposite Substances 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 230000000979 retarding effect Effects 0.000 description 2
- 206010028293 Muscle contractions involuntary Diseases 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Landscapes
- Insulated Conductors (AREA)
Abstract
The utility model relates to a wire and cable technical field, concretely relates to this ampere of type fireproof cable. A this ampere of type fireproof cable, includes the cable inner core, and the cable inner core includes a conductor sinle silk, and in order being equipped with an insulating layer around the packet mode outside the conductor sinle silk, the insulating layer is outer to be equipped with and to be used for providing sheath in the metal of protection to the insulating layer in order to indulge the packet mode, and interior sheath is outer to be equipped with the area isolation layer of spine suddenly with crowded packet mode, and the isolation layer is outer to be equipped with a flame retardant coating with crowded packet mode, and the flame retardant coating is outer to be equipped with an outer jacket with crowded packet mode. Due to the adoption of the technical scheme, the utility model has the advantages of colourless, tasteless, nontoxic, smokeless, resistant high low temperature, the resistant characteristics such as ageing, environmental protection of waiting can stop flame to the harm of cable effectively, make the cable keep a normal operating of fixing time in the flame burning circumstances, have simultaneously that the cost is with low costs, factor of safety is high.
Description
Technical field
The utility model relates to technical field of electric wires and cables, is specifically related to a kind of intrinsic safety type fireproof cable.
Background technology
According to statistics, the part caused due to electric fault in fire incident accounts for 60%.Along with people constantly deepen the understanding of the danger of electric wire problem initiation fire, the performance requirements such as the fire protection flame retarding of electric wire are also progressively being improved.When running into breaking out of fire, the fire-fighting equipment such as Fire lift, fire pump need keep normal operation within a certain period of time, and therefore, the electric wire bearing these equipment transmission of electricity effects just needs the performance possessing higher fireproofing and heat resistant.And be no matter the electric wire of fire-fighting equipment or scene of fire, if it produces a large amount of toxic and harmful after combustion, then easily cause secondary to endanger and pollute.General fire-resisting cable is wrapped mica tape on conductor mainly, and be made up of flame resistant filler, fire-retardant band and fire retardant jacket, fire protecting performance is limited, can not meet for the fire-proof and explosion-proof application scenario having requirements at the higher level.
Utility model content
The purpose of this utility model is, provides a kind of intrinsic safety type fireproof cable, solves above technical problem.
The technical problem that the utility model solves can realize by the following technical solutions:
A kind of intrinsic safety type fireproof cable, comprises cable inner core, it is characterized in that, described cable inner core comprises a conductor thread core, outside described conductor thread core, be provided with an insulating barrier in wrapped mode, described insulating barrier is outer is provided with sheath with vertical packet mode, for providing protection to insulating barrier;
Described sheath is outer to extrude the separator that mode is provided with a band ridge, and described separator is outer is provided with a fireprotection layer to extrude mode, is provided with an outer jacket outside described fireprotection layer.
Described separator is the separator that environmental protection high polymer is made, outside its ridge, be provided with skeleton in wrapped mode.
Preferably, described separator adopts the separator that crosslinked polyethylene is made.
Described skeleton adopts the skeleton be made up of wire or filament, is network structure when described skeleton is made via wire or filament.
Ridge on described separator is the periphery that 5 equal portions or 6 equal portions are distributed in described sheath.
The conductor thread core that described conductor thread core adopts strand copper wire stranded.
The insulating barrier that described insulating barrier adopts inorganic mineral material to make.
The sheath that described sheath adopts metal material to make, and be coated on outside described insulating barrier, completely cut off the impact of electromagnetic field, effectively improve the antimagnetic explosion-proof performance of cable.
The thickness of described sheath is 0.4mm ~ 1.5mm, preferred 0.8mm.
The outer wall of described sheath adopts embossing process, enhances the bending property of cable.
Preferably, described sheath adopts the sheath that aluminium or aluminum alloy materials are made.
The fireprotection layer that described fireprotection layer adopts inorganic mineral composite nano materials to make, the inorganic mineral composite nano materials that described inorganic mineral composite nano materials is inorganic mineral fire resistant flame retardant material, nano inorganic auxiliary agent, inorganic binder, inorganic mineral filler are mixed;
Described inorganic mineral fire resistant flame retardant material adopts aluminium hydroxide, magnesium hydroxide or both mixtures.
Described fireprotection layer between described skeleton and described separator, and is complex as a whole structure with described skeleton, ensure that fireproofing of cable performance.
The integrative-structure peripheral hardware of described fireprotection layer and described skeleton has described outer jacket.
Fireprotection layer of the present utility model selects inorganic mineral composite nano materials to make, have smokeless, nontoxic, do not produce the feature of droppings, the nano inorganic auxiliary agent used in the production of inorganic mineral composite nano materials promotes that material forms excellent combination property, there is the flexibility of macromolecular material and the robustness of comprehensive architecture material simultaneously, the inorganic adhesive used in the production of inorganic mineral composite nano materials is a kind of high temperature resistant inorganic nano-composite water inorganic adhesive utilizing inorganic nano material to make through polycondensation reaction, by the screening to composition proportion and preparation technology parameter, the not only strong and excellent fire retarding performance of cohesive force, good non-corrosiveness can be kept under the high temperature of 1800 DEG C, fire resistance and adhesive property.When the fireprotection layer burning that inorganic mineral composite nano materials is made; there is feature that is nontoxic, tasteless, that do not fire; the solid-state non-combustible matter of final formation; after this solid-state non-combustible matter is hardening; hole is produced in fireprotection layer inside; effectively completely cut off the transmission of the heat produced in burning, had fire-resistant and intercept the effect of high temperature significantly, thus the internal structure of available protecting cable and performance is stable.
The outer jacket that described outer jacket adopts halogen-free and low-smoke flame-retardant polyolefin material to make.
Be provided with an inhibiting tape between described outer jacket and described skeleton, described outer jacket is arranged at outside described inhibiting tape to extrude mode, the inhibiting tape that described inhibiting tape adopts glass fibre to make.
When cable inner core comprises at least two conductor thread cores, a described insulating barrier corresponding with it is equipped with outside arbitrary described conductor thread core, after described at least two conductor thread core fasciculations arrangement, be provided with described sheath in fascicular texture outside, between the insulating barrier outside described sheath and described at least two conductor thread cores, be provided with a mineral-filled layer.
The mineral-filled layer that described mineral-filled layer adopts mineral matter rope to make.Described mineral matter rope comprises a rope matter matrix, and described rope matter matrix strand is shaped with mineral fibre.Mineral matter rope temperature resistant range, between 1250 DEG C ~ 1400 DEG C, has excellent heat-insulating property, and itself belongs to inanimate matter silicate fiber, incombustible.
Preferably, described cable inner core comprises three conductor thread cores.
Beneficial effect: owing to adopting technique scheme; the utility model uses inorganic mineral composite nano materials to make main protective layer as cable after fireprotection layer; with the separator of band ridge; effectively be combined with each other with wire or filament; there is the feature such as colourless, tasteless, nontoxic, smokeless, high-low temperature resistant, weatherable, environmental protection; can effectively stop flame to the infringement of cable; make cable maintain the normal operation of certain hour in flame combustion situation, there is the advantage that cost is low, coefficient of safety is high simultaneously.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is another kind of structural representation of the present utility model.
Embodiment
The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, setting forth the utility model further below in conjunction with concrete diagram.
With reference to Fig. 1, a kind of intrinsic safety type fireproof cable, comprise cable inner core, it comprises and adopts the stranded conductor thread core 1 of strand copper wire, is provided with the insulating barrier 2 that inorganic mineral material makes conductor thread core 1 is outer in wrapped mode, and insulating barrier 2 is outer is provided with vertical packet mode the sheath 4 that metal material makes, its thickness is 0.4mm ~ 1.5mm, preferred 0.8mm, its outer wall adopts embossing process, to strengthen the bending property of cable.Preferably, sheath 4 adopts aluminium or aluminum alloy materials to make.Sheath 4 is outer is provided with to extrude mode the separator 6 that environmental protection high polymer makes, and preferably adopts crosslinked polyethylene to make.Separator 6 is with ridge, and ridge is the periphery that 5 equal portions or 6 equal portions are distributed in sheath 4, be provided with cancellated skeleton 8, and skeleton 8 is made up outside ridge in wrapped mode of wire or filament.Be provided with to extrude mode the fireprotection layer 7 adopting inorganic mineral composite nano materials to make between skeleton 8 and separator 6.Wherein, the material that inorganic mineral composite nano materials is inorganic mineral fire resistant flame retardant material, nano inorganic auxiliary agent, inorganic binder, inorganic mineral filler are mixed, inorganic mineral fire resistant flame retardant material adopts aluminium hydroxide, magnesium hydroxide or both mixtures.Fireprotection layer 7 and skeleton 8 are complex as a whole structure, its outer inhibiting tape 9 being provided with glass fibre and making, and inhibiting tape 9 is outer is provided with to extrude mode the outer jacket 10 adopting halogen-free and low-smoke flame-retardant polyolefin material to make.
With reference to Fig. 2, when cable inner core comprises at least two conductor thread cores 1, an insulating barrier 2 corresponding with it is equipped with outside arbitrary conductor thread core, after at least two conductor thread core 1 fasciculation arrangements, be provided with sheath 4 in fascicular texture outside, between the insulating barrier outside sheath and at least two conductor thread cores, be provided with a mineral-filled layer 5.Mineral-filled layer 5 adopts mineral matter rope to make, and mineral matter rope comprises a rope matter matrix, and rope matter matrix strand is shaped with mineral fibre.Preferably, cable inner core comprises three conductor thread cores 1.
The utility model uses the band environment-friendly type high polymer of ridge and the fireprotection layer of inorganic mineral composite Nano composite integrated; as main fireproof protective layer; there is the feature such as colourless, tasteless, nontoxic, smokeless, high-low temperature resistant, weatherable, environmental protection, can effectively stop flame to the infringement of cable.
Foregoing shows and describes general principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (10)
1. an intrinsic safety type fireproof cable; comprise cable inner core; it is characterized in that; described cable inner core comprises a conductor thread core; outside described conductor thread core, be provided with an insulating barrier in wrapped mode, be provided with the sheath for providing protection to insulating barrier outside described insulating barrier with vertical packet mode, described sheath is outer to extrude the separator that mode is provided with a band ridge; be provided with a fireprotection layer outside described separator, described fireprotection layer is outer is provided with an outer jacket to extrude mode.
2. a kind of intrinsic safety type fireproof cable according to claim 1, is characterized in that, described separator is the separator that environmental protection high polymer is made, outside its ridge, be provided with cancellated skeleton in wrapped mode,
Described fireprotection layer between described skeleton and described separator, and is complex as a whole structure with described skeleton, and the integrative-structure peripheral hardware of described fireprotection layer and skeleton has described outer jacket.
3. a kind of intrinsic safety type fireproof cable according to claim 2, is characterized in that, the skeleton that described skeleton adopts wire or filament to make.
4. a kind of intrinsic safety type fireproof cable according to claim 3, is characterized in that, the ridge on described separator is the periphery that 5 equal portions or 6 equal portions are distributed in described sheath.
5. a kind of intrinsic safety type fireproof cable according to claim 4, is characterized in that, the conductor thread core that described conductor thread core adopts strand copper wire stranded;
The insulating barrier that described insulating barrier adopts inorganic mineral material to make;
The outer jacket that described outer jacket adopts halogen-free and low-smoke flame-retardant polyolefin material to make.
6. a kind of intrinsic safety type fireproof cable according to any one of claim 1 to 5, is characterized in that, the sheath that described sheath adopts metal material to make, and described sheath is coated on outside described insulating barrier;
The outer wall of described sheath adopts embossing process.
7. a kind of intrinsic safety type fireproof cable according to claim 6, is characterized in that, the thickness of described sheath is 0.4mm ~ 1.5mm.
8. a kind of intrinsic safety type fireproof cable according to claim 7, it is characterized in that, the fireprotection layer that described fireprotection layer adopts inorganic mineral composite nano materials to make, the inorganic mineral composite nano materials that described inorganic mineral composite nano materials is inorganic mineral fire resistant flame retardant material, nano inorganic auxiliary agent, inorganic binder, inorganic mineral filler are mixed, described inorganic mineral fire resistant flame retardant material adopts aluminium hydroxide, magnesium hydroxide or both mixtures.
9. a kind of intrinsic safety type fireproof cable according to claim 8, it is characterized in that, be provided with an inhibiting tape between described outer jacket and described skeleton, described outer jacket is arranged at outside described inhibiting tape to extrude mode, the inhibiting tape that described inhibiting tape adopts glass fibre to make.
10. a kind of intrinsic safety type fireproof cable according to claim 9, it is characterized in that, when cable inner core comprises at least two conductor thread cores, a described insulating barrier corresponding with it is equipped with outside arbitrary described conductor thread core, after described at least two conductor thread core fasciculations arrangement, described sheath is provided with in fascicular texture outside, a mineral-filled layer is provided with between insulating barrier outside described sheath and described at least two conductor thread cores, the mineral-filled layer that described mineral-filled layer adopts mineral matter rope to make, described mineral matter rope comprises a rope matter matrix, described rope matter matrix strand is shaped with mineral fibre.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201520837234.1U CN205177471U (en) | 2015-10-27 | 2015-10-27 | This ampere of type fireproof cable |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201520837234.1U CN205177471U (en) | 2015-10-27 | 2015-10-27 | This ampere of type fireproof cable |
Publications (1)
Publication Number | Publication Date |
---|---|
CN205177471U true CN205177471U (en) | 2016-04-20 |
Family
ID=55741429
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201520837234.1U Active CN205177471U (en) | 2015-10-27 | 2015-10-27 | This ampere of type fireproof cable |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN205177471U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111899926A (en) * | 2020-07-15 | 2020-11-06 | 中天科技海缆有限公司 | Power supply cable for low-voltage frequency conversion |
-
2015
- 2015-10-27 CN CN201520837234.1U patent/CN205177471U/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111899926A (en) * | 2020-07-15 | 2020-11-06 | 中天科技海缆有限公司 | Power supply cable for low-voltage frequency conversion |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN103971842A (en) | Polyvinyl chloride insulation and sheath flame-retardant and fire-proof power cable | |
CN205177445U (en) | Fireproof cable | |
CN202839048U (en) | A high temperature resistant fireproof cable | |
CN209045211U (en) | A kind of fire-retardant 1 grade of B1 cable interlocking metal tape fire lagging | |
CN205177471U (en) | This ampere of type fireproof cable | |
CN205303039U (en) | Fire -resistant low tension cable of flexible insulation aluminium sheath | |
CN205789153U (en) | Insulation irradiation fireproof cable | |
CN208689973U (en) | A kind of fire-retardant 1 grade of B1 cable of wrapped metal tape fire lagging | |
CN112164510A (en) | High-flame-retardant new energy automobile cable | |
CN205177472U (en) | Environment -friendly fireproof cable | |
CN204463893U (en) | A kind of mineral insulating flexible fireproof cable | |
CN210349364U (en) | Environment-friendly flexible fireproof cable | |
CN207068491U (en) | A kind of low-pressure fireproof cable | |
CN214377772U (en) | Medium-voltage fireproof power cable | |
CN214796794U (en) | Environment-friendly metal sheath mineral insulation fireproof cable | |
CN210606749U (en) | Low-smoke environment-friendly halogen-free flame-retardant fire-resistant cable | |
CN212750456U (en) | Copper core crosslinked polyethylene insulation fire-resistant flame-retardant cable | |
CN204632366U (en) | Flexible mineral protective layer fireproof cable | |
CN111009344A (en) | Fireproof flame-retardant cable | |
CN203150200U (en) | Environment-friendly high flame resistant fireproof control cable used for fire-fighting security system | |
CN202549472U (en) | Fire-resistant power cable | |
CN208507231U (en) | A kind of mineral insulated cable | |
CN201765873U (en) | Fully flame-retardant fire-resistant armored silane cross-linked power cable | |
CN201812561U (en) | High fire-retardant fire prevention type broadband is symmetrical cable for LAN | |
CN113066614A (en) | Medium-voltage corrugated aluminum sleeve armored power cable |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant |