CN206541661U - A kind of polyvinyl chloride insulation sheath fireproof power cable - Google Patents
A kind of polyvinyl chloride insulation sheath fireproof power cable Download PDFInfo
- Publication number
- CN206541661U CN206541661U CN201720301122.3U CN201720301122U CN206541661U CN 206541661 U CN206541661 U CN 206541661U CN 201720301122 U CN201720301122 U CN 201720301122U CN 206541661 U CN206541661 U CN 206541661U
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- China
- Prior art keywords
- polyvinyl chloride
- insulation sheath
- chloride insulation
- cable
- wall
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Abstract
The utility model discloses a kind of polyvinyl chloride insulation sheath fireproof power cable of field of cable technology, including core and by the stranded bunch of cables of four groups of cores, the conductor outer wall is wound with mica belt, the mica belt outer wall is provided with inhibiting tape, flame resistant filler nitride layer is filled with the cavity formed between the core and bunch of cables, polyvinyl chloride insulation sheath is provided between the shielding inner sleeve and shielding overcoat, flame retardant coating can effectively prevent injury of the high temperature that burning is produced to cable body, improve the fire resistance of cable, mica belt is excellent refractory insulating material simultaneously, with excellent resistance to elevated temperatures and flame resistance energy, with flame retardant coating formation double-layer safety, cable can be protected without damage in the high temperature produced by fire to greatest extent, ensure the normal operation of circuit, simultaneously provided with undertaking rib inside polyvinyl chloride insulation sheath, the stability of the construction of cable can be increased substantially.
Description
Technical field
The utility model is related to field of cable technology, specially a kind of polyvinyl chloride insulation sheath fireproof power cable.
Background technology
Cable is typically by several or the cable of at least two stranded similar ropes of several groups of every group of wires, and every group is led
Mutually insulated between line, and be often twisted into around a center, whole outside is surrounded by the coating of high-insulation.It is erected at sky more
In or mounted in underground, the bottom, for telecommunication or power Transmission.Cable can be divided into power cable, communication cable and control by its purposes
Cable processed etc..Compared with overhead line, the advantage of cable is that insulation distance is small between line, and floor space is small, and underground laying is without taking up an area
Face space above, is not influenceed by ambient contamination, and power transmission reliability is high, small to personal safety and surrounding environment interference.But make
Valency is high, and construction, maintenance are cumbersome, manufacture also more complicated.Therefore, densely populated and the dense area of power network and friendship are applied to cable more
Lead to crowded busy place；Cross river, cross the river, laying down on sea bottom can then avoid using large span overhead line.Needing to avoid overhead line pair
The place of Communication Jamming and need to consider attractive in appearance or avoid the occasion given away one's position from also using cable.
At present, the cable of in the market is various, and applies in different occasions, but most of cable all has structure
Level arranges unreasonable, and not compact enough between layers, conductor shape is relatively simple, and packed layer is not solid firm enough, insulating barrier
Thickness sets uneven, the problems such as insulation effect is undesirable, and the fire resisting effect of flame retardant coating is not good, and outer protective sleeve is fragile, its
Whole service life is shorter, once occurring fire, cable fire can produce substantial amounts of dense smoke, and halogen-containing materials can discharge in burning
Go out hydracid corrosive gas, the health of harmful to human and whole power supply circuit is done great damage, therefore, we have proposed one
Plant polyvinyl chloride insulation sheath fireproof power cable to come into operation, to solve the above problems.
Utility model content
The purpose of this utility model is to provide a kind of polyvinyl chloride insulation sheath fireproof power cable, to solve the above-mentioned back of the body
The fire resisting effect proposed in scape technology is undesirable and halogen-containing materials can discharge the problem of being largely harmful to dense smoke in burning.
To achieve the above object, the utility model provides following technical scheme：A kind of polyvinyl chloride insulation sheath flame proof electrical
Power cable, including core and by the stranded bunch of cables of four groups of cores, the core includes conductor, the conductor outer wall winding
There is mica belt, the mica belt outer wall is provided with inhibiting tape, the cavity formed between the core and bunch of cables and filled
There is flame resistant filler nitride layer, the bunch of cables outer wall is socketed with shielding inner sleeve, and the shielding outer wall of inside race is described provided with shielding overcoat
Shield and be provided with polyvinyl chloride insulation sheath between inner sleeve and shielding overcoat, the shielding outer casing outer wall is pasted with flame retardant coating.
It is preferred that, the polyvinyl chloride insulation sheath lumen is uniformly provided between undertaking rib, two groups of undertaking ribs and is filled with
Honeycomb inflaming retarding membrane.
It is preferred that, the mica belt is entwined by individual layer mica tape.
It is preferred that, the flame resistant filler nitride layer is combustion-proof glass fiber or halogen-free flameproof kernmantle.
It is preferred that, the flame retardant coating is chromium oxide refractory sleeve.
Compared with prior art, the beneficial effects of the utility model are：The polyvinyl chloride insulation sheath fireproof power cable,
Flame retardant coating can effectively prevent injury of the high temperature that burning is produced to cable body, the fire resistance of cable be improved, while mica
Belt is excellent refractory insulating material, and with excellent resistance to elevated temperatures and flame resistance energy, double-deck guarantor is formed with flame retardant coating
Danger, can protect cable without damage in the high temperature produced by fire to greatest extent, ensure the normal operation of circuit, simultaneously
Provided with rib is accepted inside polyvinyl chloride insulation sheath, the stability of the construction of cable can be increased substantially.
Brief description of the drawings
Fig. 1 is the utility model structural representation；
Fig. 2 is the utility model polyvinyl chloride insulation jacket structure schematic diagram.
In figure：1 bunch of cables, 2 cores, 21 conductors, 22 mica belts, 23 inhibiting tapes, 3 flame resistant filler nitride layer, 4 shieldings are interior
Rib, 52 honeycomb inflaming retarding membranes, 6 shielding overcoats, 7 flame retardant coatings are accepted in set, 5 polyvinyl chloride insulation sheaths, 51.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
Fig. 1-2 is referred to, the utility model provides a kind of technical scheme：A kind of polyvinyl chloride insulation sheath fire resistant electric power electricity
Cable, including core 2 and by the stranded bunch of cables 1 of four groups of cores 2, the core 2 includes conductor 21, the outer wall of conductor 21
Mica belt 22 is wound with, the outer wall of mica belt 22 is provided with inhibiting tape 23, formed between the core 2 and bunch of cables 1
Cavity in be filled with flame resistant filler nitride layer 3, the outer wall of bunch of cables 1 be socketed with shielding inner sleeve 4, it is described shielding the outer wall of inner sleeve 4
Provided with shielding overcoat 6, polyvinyl chloride insulation sheath 5, the shielding overcoat 6 are provided between the shielding inner sleeve 4 and shielding overcoat 6
Outer wall is pasted with flame retardant coating 7.
Wherein, the inner chamber of polyvinyl chloride insulation sheath 5 is uniformly provided between undertaking rib 51, two groups of undertaking ribs 51 and filled
There is honeycomb inflaming retarding membrane 52, the structural stability of cable, the mica belt 22 can further be strengthened by accepting the setting of rib 51
It is entwined by individual layer mica tape, the flame resistant filler nitride layer 3 is combustion-proof glass fiber or halogen-free flameproof kernmantle, the fire resisting
Layer 7 is chromium oxide refractory sleeve.
Operation principle：Mica belt 22 has good resistance to elevated temperatures and flame resistance energy, is excellent hot-face insulation
Material, can effectively improve the fire resistance of cable, and form double insurance with flame retardant coating 7, can reduce to greatest extent
Infringement of the high temperature that fire is produced to cable, ensures the normal operation of whole circuit, by inside polyvinyl chloride insulation sheath 5
The undertaking rib 51 of setting, can effectively improve the overall structural stability of cable, while polyvinyl chloride has well in itself
Stable insulation characterisitic, the apparatus structure is simple, reasonable in design, can extend the service life of cable, can be widely used in room
The environment such as interior, cable duct and outdoor.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out in the case where not departing from principle of the present utility model and spirit a variety of changes, repaiies
Change, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of polyvinyl chloride insulation sheath fireproof power cable, including core (2) and by the stranded electricity of four groups of cores (2)
Cable beam (1), it is characterised in that：The core (2) includes conductor (21), and conductor (21) outer wall is wound with mica belt
(22), mica belt (22) outer wall is provided with inhibiting tape (23), the sky formed between the core (2) and bunch of cables (1)
Intracavitary is filled with flame resistant filler nitride layer (3), and bunch of cables (1) outer wall is socketed with shielding inner sleeve (4), the shielding inner sleeve (4)
Outer wall is provided with polyvinyl chloride insulation sheath (5) provided with shielding overcoat (6) between the shielding inner sleeve (4) and shielding overcoat (6),
Described shielding overcoat (6) outer wall is pasted with flame retardant coating (7).
2. a kind of polyvinyl chloride insulation sheath fireproof power cable according to claim 1, it is characterised in that：The polychlorostyrene
Ethene insulating sheath (5) inner chamber, which is uniformly provided between undertaking rib (51), two groups of undertaking ribs (51), is filled with honeycomb inflaming retarding membrane
(52)。
3. a kind of polyvinyl chloride insulation sheath fireproof power cable according to claim 1, it is characterised in that：The mica
Belt (22) is entwined by individual layer mica tape.
4. a kind of polyvinyl chloride insulation sheath fireproof power cable according to claim 1, it is characterised in that：It is described fire-retardant
Filler layer (3) is combustion-proof glass fiber or halogen-free flameproof kernmantle.
5. a kind of polyvinyl chloride insulation sheath fireproof power cable according to claim 1, it is characterised in that：The fire resisting
Layer (7) is chromium oxide refractory sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720301122.3U CN206541661U (en) | 2017-03-27 | 2017-03-27 | A kind of polyvinyl chloride insulation sheath fireproof power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720301122.3U CN206541661U (en) | 2017-03-27 | 2017-03-27 | A kind of polyvinyl chloride insulation sheath fireproof power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206541661U true CN206541661U (en) | 2017-10-03 |
Family
ID=59942961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720301122.3U Expired - Fee Related CN206541661U (en) | 2017-03-27 | 2017-03-27 | A kind of polyvinyl chloride insulation sheath fireproof power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206541661U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112885524A (en) * | 2021-03-15 | 2021-06-01 | 厦门显兴科技有限公司 | Double-flame-retardant power cable |
-
2017
- 2017-03-27 CN CN201720301122.3U patent/CN206541661U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112885524A (en) * | 2021-03-15 | 2021-06-01 | 厦门显兴科技有限公司 | Double-flame-retardant power cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171003 Termination date: 20210327 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |