CN204516446U - The ethylene propylene rubber insulated fireproof armored cable of rated voltage 10kV - Google Patents
The ethylene propylene rubber insulated fireproof armored cable of rated voltage 10kV Download PDFInfo
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- CN204516446U CN204516446U CN201520211275.XU CN201520211275U CN204516446U CN 204516446 U CN204516446 U CN 204516446U CN 201520211275 U CN201520211275 U CN 201520211275U CN 204516446 U CN204516446 U CN 204516446U
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- cable
- ethylene propylene
- propylene rubber
- rated voltage
- insulated fireproof
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Abstract
The utility model relates to field of cable technology, specifically discloses the ethylene propylene rubber insulated fireproof armored cable of a kind of rated voltage 10kV, comprises many cable cores and is set in turn in belting layer, flame retardant coating, separator, armour and the external sheath layer outside cable core; Described cable core comprises conductor and is coated on internal shield, insulating barrier, outer shielding layer and the metal screen layer outside conductor successively; Separated by filler between described cable core.The utility model advantage is, this cable security performance is higher, can improve the power supply reliability of electric power system under fire hazard environment, the reliability of powering under ensure that fire condition, and the evacuation egress and the rescue that are conducive to personnel are carried out.
Description
Technical field
The utility model relates to field of cable technology, refers to the ethylene propylene rubber insulated fireproof armored cable of a kind of rated voltage 10kV especially.
Background technology
No matter there is which type of fire, for keep electric equipments (include but not limited to smoke detector, automatic alarm system, emergent electric bell or siren, fire pump, ventilation smoke exhaust equipment, water sprinkler, water spray device, electronic fire-suppression bottle (carbon dioxide, halide or powder), the identification light of broadcasting equipment, fire escape and escape hatch, emergency elevator, emergency power supply socket, and control with the current supply circuit such as commander's hinge and communicate, control system) running status and provide power supply supply endlessly and information transmission to be very important.It enables people escape the inferno with the fastest speed and be conducive to the carrying out of fire fighting work.Make these devices or equipment not power-off is concurrent in a fire to wave its function, just must use fire-resisting cable.So-called fire-resisting cable, the cable that certain hour can be kept normally to run under regulation flame combustion condition exactly; The cable of circuit integrality can be kept in other words under burning condition.
In recent years, fire incident occurred again and again, had caused people to the concern in the emphasis public safety places such as heavy construction, tunnel, track traffic, large stadium and worry.NFA security department also establishes public place flame-retardant identity management system, improve the access door of public place flame-retardant architecture decorative product, this measure both provided opportunity to develop for flame retardant cable and fire-resisting cable market, also for fire-retardant and fire-resisting cable product propose requirements at the higher level.
At present, the fire-resisting cable used on the market is still based on the overlapping around-packing technology of multi layer cloud master tape.Because mica tape is under the high-temperature condition of fire, electric property can produce the impact of cataclysm, therefore the electric pressure of fire-resisting cable is still used on 1kV and following low-voltage lines and electric equipment.The electric pressure of fire-resisting cable main is at present 0.6/1kV.
Along with the fast development of China's economy, the densely populated place occasions such as the important job facilities such as subway, power plant, nuclear power station, tunnel and skyscraper, intelligent residential district, large supermarket, public place get more and more, especially skyscraper quantity increases especially, and many buildings become the landmark building in city, place.Because the supply district of 1kV power cable only has 500m, for high-rise, if adopt 0.6/1kV low voltage distribution by convention, its cable consumption and laying installation workload, comparatively common building thing becomes decades of times to increase, and cable laying space becomes several times of growths, both material was wasted, power consumption is very high again, and in building, cable laying is too much, also can bring adverse effect to safe handling.Therefore, building brings into use 8.7/10kV midium voltage cable to power, and transformer is arranged on centre or the top of building floor, and midium voltage cable is laid in connection transformer in vertical shaft, after transformer pressure-reducing, powers to relevant equipment.In order to ensure the power supply reliability under Fire Conditions, needing the fire-resisting cable using rated voltage 8.7/10kV, requiring that cable still can be powered constantly under flame condition within a period of time, be beneficial to the rescue of fire and fleeing from and evacuating of personnel.
Utility model content
The purpose of this utility model is to provide a kind of ethylene propylene rubber insulated fireproof armored cable, rated voltage is 8.7/10kV, this cable usage safety performance is higher, the power supply reliability of electric power system under fire hazard environment can be improved, cable still can be powered sustainedly and stably when calcination within a period of time, improve power supply reliability, decrease cable consumption and lay space.
To achieve these goals, the utility model have employed following technical scheme: the ethylene propylene rubber insulated fireproof armored cable of a kind of rated voltage 10kV, comprises many cable cores and is set in turn in belting layer, flame retardant coating, separator, armour and the external sheath layer outside cable core; Described cable core comprises conductor and is coated on internal shield, insulating barrier, outer shielding layer and the metal screen layer outside conductor successively; Separated by filler between described cable core, described internal shield and outer shielding layer adopt semiconductive material to make, and described insulating barrier adopts ethylene propylene rubber insulated insulating material to make.
Wherein, described conductor is oxygen-free copper single line.
Wherein, described metal screen layer adopts that copper strips is wrapped puts up structure.
Wherein, described flame retardant coating adopts fire-resistant rubber band lapping structure; Fire-resistant rubber band is rolled by fire-resisting ceramic silicone rubber and high temperature resistance glass fiber cloth to be composited.
Wherein, described separator adopts the halogen-free material of high flame retardant to be extruded on flame retardant coating.Under flame, can amount of heat be absorbed and crust, the heat radiation of the two ends of common cable is changed into comprehensive heat radiation, increasing heat radiation area, reducing flame temperature to the injury of cable.
Wherein, described armour adopts bimetallic strip or compact arranged wire sheathed structure, can keep out flame and spread to cable inside, reduces flame to the harm of refractory protection.Metal tape armour structural cable can bear certain radial compression applied.Wire sheathed structure can bear larger pulling force, and the occasion being suitable for the drops such as vertical shaft larger is laid.
Wherein, described external sheath layer adopts the halogen-free flame-retardant sheath material of high flame retardant to be extruded on cable core.
The beneficial effects of the utility model are: after adopting above-mentioned cable, the ethylene propylene rubber insulated fireproof armored cable of rated voltage 10kV, compared with common 8.7/10kV crosslinked cable, security performance is higher, the power supply reliability of electric power system under fire hazard environment can be improved, cable still can be powered sustainedly and stably when calcination within a period of time, during burning, cable does not distribute toxic gas, the smog distributed can not etching apparatus, smothering action can not be produced to personnel, the evacuation egress and the rescue that are conducive to personnel are carried out, and can not be formed " secondary disaster ".The Design and manufacture of the ethylene propylene rubber insulated fireproof armored cable of rated voltage 8.7/10kV, achieves the fire resistance of middle pressure crosslinked cable, improves power supply reliability, decreases cable consumption and lays space.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment technical scheme, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only that the utility model is in order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, below the accompanying drawing used required in p-embodiment or description of the prior art is briefly described, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
The ethylene propylene rubber insulated fireproof armored cable of a kind of rated voltage 10kV as shown in Figure 1, comprises many cable cores (1) and is set in turn in cable core (1) belting layer outward (2), flame retardant coating (3), separator (6), armour (7) and external sheath layer (4); Described cable core (1) comprises conductor (11) and is coated on conductor (11) internal shield outward (12), insulating barrier (13), outer shielding layer (14) and metal screen layer (15) successively; Separated by filler (5) between described cable core (1).
The ethylene propylene rubber insulated fireproof armored cable of rated voltage 10kV is when specifically making:
Conductor (11) adopts oxygen-free copper bar to make raw material, after wire drawing, annealing, makes copper single line, through stranded, press after, form the 2nd kind of stranded compact conductor of circle (11) of cable, with the bending property of appropriate cable.
Internal shield (12), outer shielding layer (14) adopt semiconductive material, and insulating barrier (13) adopts ethylene propylene rubber insulated insulating material.Crosslinked polyethylene has low dielectric constant and dielectric loss, changes hardly with temperature.Working temperature (90 DEG C) and short circuit temperature (250 DEG C, 5S) height, and the excellent combination properties such as mechanical property, hot property and electrical property.Internal shield (12), insulating barrier (13), outer shielding layer (14) three layers are jointly extruded and are produced.
Metal screen layer (15) insulated wire cores adopts that copper strips is wrapped puts up structure.The 10kV electric power system of China, many employing grounding through arc modes, during single-phase earthing, short circuit current is at below 1kA.By changing width and the thickness of shielding soft copper band, adjusting copper strips sectional area, different short circuit current can be met and pass through.
Adopt comparatively fine pith during stranding, the twist is comparatively large, can improve the bending property of cable.Cable core (1) employing alkali-free glass silk ribbon is wrapped, smooth, smooth, corrugationless.Adopt the space of alkali-free glass fiber yarn filled cable, keep cable outward appearance rounding.
Cable core (1) is wrapped flame retardant coating (3) outward.Flame retardant coating (3) adopts fire-resistant rubber band lapping structure.Fire-resistant rubber band is rolled by fire-resisting ceramic silicone rubber and high temperature resistance glass fiber cloth to be composited; start hardening under 350 DEG C and above flame or nonflame condition; reach as high as 3000 DEG C; along with temperature raises; burnt till complete ceramic-like stiff shell rapidly; the ablation time is longer; temperature is higher; housing is firmly harder; the stiff shell generated after burning is coated on cable core (1); isolated flame and heat are to cable internal delivery and spread, and form good protective effect to insulated wire cores, ensure unimpeded under Fire Conditions of circuit.The existence of flame retardant coating (3), can keep out the injury to insulation of flame and heat.
Wherein, described separator (6) adopts the halogen-free material of high flame retardant to be extruded on flame retardant coating.Under flame, can amount of heat be absorbed and crust, the heat radiation of the two ends of common cable is changed into comprehensive heat radiation, increasing heat radiation area, reducing flame temperature to the injury of cable.
Wherein, described armour (7) adopts bimetallic strip or compact arranged wire sheathed structure, can keep out flame and spread to cable inside, reduces flame to the harm of refractory protection.Metal tape armour structural cable can bear certain radial compression applied.Wire sheathed structure can bear larger pulling force, and the occasion being suitable for the drops such as vertical shaft larger is laid.
External sheath layer (4) adopts the halogen-free flame-retardant sheath material of high flame retardant to be extruded on cable core (1).Under flame, can absorb amount of heat, discharge the crystallization water and crust, the temperature of reduction cable surface and flame are to the injury of cable.By the fire resistive construction of fire-retardant oversheath-flame retardant coating (3), realize the function that cable is powered sustainedly and stably in a period of time under flame combustion condition.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (7)
1. the ethylene propylene rubber insulated fireproof armored cable of rated voltage 10kV, it is characterized in that, comprise many cable cores (1) and be set in turn in cable core (1) belting layer outward (2), flame retardant coating (3), separator (6), armour (7) and external sheath layer (4); Described cable core (1) comprises conductor (11) and is coated on conductor (11) internal shield outward (12), insulating barrier (13), outer shielding layer (14) and metal screen layer (15) successively; Separated by filler (5) between described cable core (1), described internal shield (12) and outer shielding layer (14) adopt semiconductive material to make, and described insulating barrier (13) adopts ethylene propylene rubber insulation material to make.
2. the ethylene propylene rubber insulated fireproof armored cable of rated voltage 10kV according to claim 1, is characterized in that: described conductor (11) is oxygen-free copper single line.
3. the ethylene propylene rubber insulated fireproof armored cable of rated voltage 10kV according to claim 1, is characterized in that: described metal screen layer (15) adopts that copper strips is wrapped puts up structure.
4. the ethylene propylene rubber insulated fireproof armored cable of rated voltage 10kV according to claim 1, is characterized in that: described flame retardant coating (3) adopts fire-resistant rubber band lapping structure; Fire-resistant rubber band is rolled by fire-resisting ceramic silicone rubber and high temperature resistance glass fiber cloth to be composited.
5. the ethylene propylene rubber insulated fireproof armored cable of the rated voltage 10kV according to any one of Claims 1 to 4, is characterized in that: described separator (6) adopts the halogen-free material of high flame retardant to be extruded on flame retardant coating.
6. the ethylene propylene rubber insulated fireproof armored cable of the rated voltage 10kV according to any one of Claims 1 to 4, is characterized in that: described armour adopts bimetallic strip or compact arranged wire sheathed structure.
7. the ethylene propylene rubber insulated fireproof armored cable of the rated voltage 10kV according to any one of Claims 1 to 4, is characterized in that: described external sheath layer (4) adopts the halogen-free flame-retardant sheath material of high flame retardant to be extruded on cable core (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520211275.XU CN204516446U (en) | 2015-04-09 | 2015-04-09 | The ethylene propylene rubber insulated fireproof armored cable of rated voltage 10kV |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520211275.XU CN204516446U (en) | 2015-04-09 | 2015-04-09 | The ethylene propylene rubber insulated fireproof armored cable of rated voltage 10kV |
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| Publication Number | Publication Date |
|---|---|
| CN204516446U true CN204516446U (en) | 2015-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520211275.XU Expired - Fee Related CN204516446U (en) | 2015-04-09 | 2015-04-09 | The ethylene propylene rubber insulated fireproof armored cable of rated voltage 10kV |
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| CN (1) | CN204516446U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109112864A (en) * | 2017-06-26 | 2019-01-01 | 江苏海峰绳缆科技有限公司 | A kind of cable peculiar to vessel easy to use |
-
2015
- 2015-04-09 CN CN201520211275.XU patent/CN204516446U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109112864A (en) * | 2017-06-26 | 2019-01-01 | 江苏海峰绳缆科技有限公司 | A kind of cable peculiar to vessel easy to use |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: The South Loop caotan 710000 economic and Technological Development Zone Shaanxi city Xi'an Province Patentee after: WESTERN ALLOY CABLE CO., LTD. Address before: The South Loop caotan 710000 economic and Technological Development Zone Shaanxi city Xi'an Province Patentee before: Western Cable Co., Ltd |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150729 Termination date: 20170409 |
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| CF01 | Termination of patent right due to non-payment of annual fee |