CN207068496U - Fire proof power cable is pressed in one kind - Google Patents
Fire proof power cable is pressed in one kind Download PDFInfo
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- CN207068496U CN207068496U CN201720551670.1U CN201720551670U CN207068496U CN 207068496 U CN207068496 U CN 207068496U CN 201720551670 U CN201720551670 U CN 201720551670U CN 207068496 U CN207068496 U CN 207068496U
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Abstract
The utility model discloses fire proof power cable, including three insulated wire cores are pressed in one kind, described three insulated wire cores are twisted into cable core；Described insulated wire cores by conductor and be wrapped in the conductor shield formed for heat curing-type semi-conducting material of conductor periphery, be heat curing-type cross-linking polyethylene materials form insulating barrier, be heat curing-type semi-conducting material form insulation screen, be the metal screen layer of soft copper band and be that the oxygen barrier layer that vinyl chloride material is formed is formed；The gap filling mineral fire prevention packed layer of described cable core, is externally provided with lapping layer in mineral fire prevention packed layer, the oversheath formed for halogen-free and low-smoke flame-retardant polyolefin material is extruded outside lapping layer；The utility model can meet the electrically and mechanically performance requirement that cable uses, and and can has good fireproof performance.
Description
Technical field
It the utility model is related to field of cables, and in particular to press fire proof power cable in a kind of.
Background technology
The continuous development of electric energy is double-edged sword with application, on the one hand brings irreplaceable superiority, another
Aspect people also must vigilant fire generation.The either needs of relevant regulations, or the change on thought of people, peace
Full electricity consumption has become the topics common in epoch, therefore fire-resisting cable arises at the historic moment.Although technology is all new with day, fire-resisting cable
Certain limitation is still suffered from terms of time, temperature and effect, while the flame retardant coating moisture absorption, cable softness difference etc. also be present
Problem, Electrical Safety is not only influenceed, also increase mounting and installation difficulty.Traditional filling all has certain hygroscopicity, and moisture absorption
Moisture afterwards can corrode the insulating barrier of cable, reduce the electric property of cable.
Utility model content
Purpose of utility model：In order to overcome the deficiencies in the prior art, there is provided fire proof power cable is pressed in a kind of, should
Under product can act on while thermal-flame, mechanical shock, Water spray, still possesses normal work within a very long time
Ability, the electrically and mechanically performance requirement that cable uses can be met, and can has good fireproof performance.
Technical scheme：To achieve the above object, the utility model provides and fire proof power cable is pressed in one kind, including three thoroughly do away with
Edge core, described three insulated wire cores are twisted into cable core；Described insulated wire cores are by conductor and are wrapped in conductor periphery
For heat curing-type semi-conducting material form conductor shield, be heat curing-type cross-linking polyethylene materials form insulating barrier, be thermosetting
Type semi-conducting material form insulation screen, be the metal screen layer of soft copper band and be vinyl chloride material composition oxygen barrier layer structure
Into；The gap filling mineral fire prevention packed layer of described cable core, is externally provided with lapping layer, in lapping layer in mineral fire prevention packed layer
It is outer to extrude the oversheath formed for halogen-free and low-smoke flame-retardant polyolefin material；Described mineral fire prevention packed layer is magnesium hydroxide powder
As base-material and add glass cement, compatilizer mixed refining forms；Lapping layer using dealcoholized type RTV silicon rubber as base rubber, with trimerization
Cyanamide phosphate is self-expanding fire retardant, prepared using magnesium hydroxide as fire retardant and using synthetic fibers mesh grid as supporting body
Form.
Further, described conductor is twisted by annealed copper wire, aluminum steel.
Further, the thickness of described mineral fire prevention packed layer is at least 2.0mm.
Compared with prior art, the beneficial effects of the utility model are：
1st, the utility model is on traditional cable architecture basics, by increasing or changing corresponding structure or material,
Fire proof power cable is pressed in the one kind designed, the product can act on while thermal-flame, mechanical shock, Water spray
Under, still possess the ability of normal work within a very long time.
2nd, traditional filling all has certain hygroscopicity, and the moisture after moisture absorption can corrode the insulating barrier of cable, reduces
The electric property of cable, to solve this problem, the utility model technically carries out innovative design, is replaced using magnesium hydroxide material
Filling and inner liner for traditional cable, as fireproofing of cable layer, meanwhile, fire prevention Rotating fields can form heavily fortified point after meeting high-temp combustion
Hard housing, protection circuit can be played a part of not by stress damage, make a very long time of cable in the presence of flame
Inside still possesses the ability of normal work.The material is economic and environment-friendly, can reduce the cost of cable, while the processing technology of the material
Simply, batch production is more efficient, quality is more stable.
3rd, oxygen barrier layer makes inside cable there is good oxygen barrier property to ensure again using the structure for extruding insulating material of polyethylene
The excellent electric property of cable.
4th, the design is using magnesium hydroxide filling plus the composite double layer fire insulation type fire prevention knot of the wrapped composition of ceramic silicone band
Structure, make cable that there is good fire protecting performance, while also ensure that cable has excellent electric property；Filling is extruded outside cable core
Layer magnesium hydroxide material " wraps fireprotection layer packed layer as fireproofing of cable protective layer, and with using ceramic silica gel band
Wrap up in ", the structural stability and impact resistance of the cable under flame interaction are improved, built-in electrical insulation core and the external world is completely isolated,
The one layer of oxygen barrier layer formed outside one layer of continual " sealing vacuum " fire-proof curtain, with core forms " fire prevention dual fail-safe ".
5th, the outer jacket of product cable of the present utility model is produced using halogen-free and low-smoke flame-retardant polyolefin material as outer jacket
Product will not produce visible flame in burning, will not produce a large amount of toxic smogs in combustion, therefore when fire occurs
The time has been fought in startup to every system, ensure that the person and property safety of the people, reduces national loss.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment, the utility model is furtherd elucidate, it should be understood that these embodiments are only used for
Illustrate the utility model rather than limitation the scope of the utility model, after the utility model has been read, art technology
Modification of the personnel to the various equivalent form of values of the present utility model falls within the application appended claims limited range.
As shown in figure 1, fire proof power cable is pressed in one kind, including three insulated wire cores, described three insulated wire cores twist
Synthesize cable core；Described insulated wire cores are by conductor 1 and are wrapped in being led for what heat curing-type semi-conducting material was formed for conductor periphery
Body screen layer 2, be heat curing-type cross-linking polyethylene materials form insulating barrier 3, be heat curing-type semi-conducting material form insulation screen
Cover layer 4, be the metal screen layer 5 of soft copper band and be vinyl chloride material form oxygen barrier layer 6 form；The gap of described cable core
Filling mineral fire prevention packed layer 7, lapping layer 8 is externally provided with mineral fire prevention packed layer, extrudes outside lapping layer and is hindered for low smoke, zero halogen
Fire the oversheath 9 that polyolefine material is formed；Described mineral fire prevention packed layer is that magnesium hydroxide powder as base-material and adds glass
Glass glue, compatilizer mixed refining form；Lapping layer using dealcoholized type RTV silicon rubber as base rubber, using melamine phosphate as from swollen
Swollen fire retardant, it is prepared as supporting body using magnesium hydroxide as fire retardant and using synthetic fibers mesh grid.
Further improve, described conductor is twisted by annealed copper wire, aluminum steel.
Further improve, the thickness of described mineral fire prevention packed layer is at least 2.0mm.
General principle, principal character and advantage of the present utility model has been shown and described above.The technical staff of the industry
It should be appreciated that the utility model is not restricted to the described embodiments, the simply explanation described in above-described embodiment and specification is originally
The principle of utility model, on the premise of the spirit and scope of the utility model is not departed from, the utility model also has various change
And improvement, these changes and improvements are both fallen within claimed the scope of the utility model.
Claims (3)
1. fire proof power cable is pressed in one kind, it is characterised in that：Including three insulated wire cores, described three insulated wire cores are twisted
Into cable core；Described insulated wire cores are by conductor and are wrapped in the peripheral conductor screen formed for heat curing-type semi-conducting material of conductor
Cover layer, be heat curing-type cross-linking polyethylene materials form insulating barrier, be heat curing-type semi-conducting material form insulation screen, be
The metal screen layer of soft copper band and the oxygen barrier layer formed for vinyl chloride material are formed；The gap filling mineral of described cable core is prevented
Fiery packed layer, lapping layer is externally provided with mineral fire prevention packed layer, is extruded outside lapping layer as halogen-free and low-smoke flame-retardant polyolefin material
The oversheath of composition；Described mineral fire prevention packed layer be magnesium hydroxide powder as base-material and add glass cement, compatilizer mixes
Refining is closed to form；Lapping layer using dealcoholized type RTV silicon rubber as base rubber, using melamine phosphate as self-expanding fire retardant, with hydrogen
Magnesia is fire retardant and is prepared using synthetic fibers mesh grid as supporting body.
2. middle pressure fire proof power cable according to claim 1, it is characterised in that：Described conductor is by annealed copper wire, aluminium
Line is twisted.
3. middle pressure fire proof power cable according to claim 1, it is characterised in that：The thickness of described mineral fire prevention packed layer
Degree is at least 2.0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720551670.1U CN207068496U (en) | 2017-05-18 | 2017-05-18 | Fire proof power cable is pressed in one kind |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720551670.1U CN207068496U (en) | 2017-05-18 | 2017-05-18 | Fire proof power cable is pressed in one kind |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207068496U true CN207068496U (en) | 2018-03-02 |
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ID=61504708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720551670.1U Active CN207068496U (en) | 2017-05-18 | 2017-05-18 | Fire proof power cable is pressed in one kind |
Country Status (1)
| Country | Link |
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| CN (1) | CN207068496U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107017043A (en) * | 2017-05-18 | 2017-08-04 | 无锡市新阳光电缆有限公司 | Fire proof power cable is pressed in one kind |
| CN111627607A (en) * | 2019-02-27 | 2020-09-04 | 云南多宝电缆集团股份有限公司 | Halogen-free flame-retardant low-voltage cable |
-
2017
- 2017-05-18 CN CN201720551670.1U patent/CN207068496U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107017043A (en) * | 2017-05-18 | 2017-08-04 | 无锡市新阳光电缆有限公司 | Fire proof power cable is pressed in one kind |
| CN111627607A (en) * | 2019-02-27 | 2020-09-04 | 云南多宝电缆集团股份有限公司 | Halogen-free flame-retardant low-voltage cable |
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