CN201413732Y - LSOH medium voltage power cable - Google Patents
LSOH medium voltage power cable Download PDFInfo
- Publication number
- CN201413732Y CN201413732Y CN2009200818109U CN200920081810U CN201413732Y CN 201413732 Y CN201413732 Y CN 201413732Y CN 2009200818109 U CN2009200818109 U CN 2009200818109U CN 200920081810 U CN200920081810 U CN 200920081810U CN 201413732 Y CN201413732 Y CN 201413732Y
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Abstract
The utility model discloses a LSOH (low smoke and zero halogen) medium voltage power cable, which comprises a core and a sheath layer, and is characterized in that a cabled tape and an oxygen barrierare sequentially arranged between the core and the sheath layer from inside to outside; the sheath layer is an inflaming retarding silicon rubber layer; a sheath protective layer is arranged outside the sheath layer; the sheath protective layer is an LSOH polyolefine layer; and air spaces formed in the core are filled with fillers. The LSOH medium voltage power cable adopts a silicon rubber sheath; silicon rubber materials achieve better temperature resistance performance and generate silicon dioxide after being burnt, so that inflaming retarding effect can be achieved better; and in addition,a layer of LSOH polyolefine materials is additionally arranged outside the sheath and used as the sheath protective layer, so that the LSOH medium voltage power cable is not easy to burn at a high temperature and can have low smoke and be nontoxic even if the cable is burnt. Therefore, the LSOH medium voltage power cable can be suitable on occasions at high environmental temperatures, such as industries of subways, mines, petroleum extraction, and the like.
Description
Technical field
The utility model relates to a kind of medium-pressure power cable, particularly relates to a kind of low smoke and zero halogen medium-pressure power cable.
Background technology
In the fire incident, the fire that electric wire causes can not be ignored.In the fire that takes place, account for more than 35%, in the fire fatality personnel, have 2nd/3rd, because the toxic gas that discharges when sucking the electric wire burning and death by suffocation because of electric wire is caused.Particularly the higher special occasions of ambient temperature stops the burning of electric wire, even gone back LSZH by the naked light burning, this is electric wire manufacturing one a big problem.
Chinese patent discloses " pressing fire-resisting cable in a kind of low smoke and zero halogen " (publication number CN201036061), this utility model discloses in a kind of low smoke and zero halogen and has pressed fire-resisting cable, comprise cable core and oversheath, characteristics are to be disposed with low smoke and zero halogen oxygen barrier thermal insulation layer, asbestos layer, mica tape and metal tape retaining fire bed between cable core and the oversheath from inside to outside, are filled with the dustless mineral wool rope of low smoke and zero halogen in the space of cable core; Though this technical products can be high temperature resistant, flame resistant, burning back LSZH, because this cable adopts mica tape wrapped, and at the higher special occasions of ambient temperature, the thickness of mica tape and mechanical property all can not satisfy the demand of stranding band; In addition, this cable does not adopt the protection of silicone rubber jacket and sheath since silicon rubber more can be high temperature resistant and silicon dioxide that its burning back generates can be further fire-retardant, thereby under the higher special occasions of ambient temperature, it is fire-resistant, fire resistance is still not ideal enough.
The utility model content
Technical assignment of the present utility model is at above weak point, and a kind of high temperature resistant, back harmless low smoke and zero halogen medium-pressure power cable of burning is provided.
The technical scheme that its technical problem that solves the utility model adopts is:
A kind of low smoke and zero halogen medium-pressure power cable comprises core and restrictive coating, it is characterized in that: be disposed with stranding band, oxygen barrier layer from inside to outside between described core and the described restrictive coating; Described restrictive coating is the flame-proof silicon rubber layer, and restrictive coating is outside equipped with the sheath protective layer, and described sheath protective layer is the low-smoke halogen-free polyolefin layer, is provided with inserts in the space of described core.
The stranding band is that glass cloth double-layer overlapping is wrapped.
Oxygen barrier layer is the low-smoke halogen-free polyolefin layer.
Inserts is the low smoke and zero halogen inserts.
Compared with prior art, the utility model has the advantages that:
1, the utility model has adopted silastic material as oversheath, because silastic material has the better temperature resistance energy, and burning back formation silicon dioxide, more can play flame retardant effect.Thereby can satisfy the low-smoke halogen-free cable demand of high temperature occasion.
2, the utility model considers that the tear resistance of silicone rubber jacket material is relatively poor, has specially added one deck low-smoke halogen-free polyolefin material as the sheath protective layer, thereby can satisfy the low-smoke halogen-free cable user demand of high temperature occasion fully.
3, it is overlapping wrapped that the utility model has adopted double-deck glass cloth, because glass cloth does not contain halogen, and oxygen index satisfies the requirement of low-smoke halogen-free cable, and mechanical property also satisfies the requirement of larger cross-section cable stranding, thereby can satisfy the low-smoke halogen-free cable demand of high temperature occasion
4. though the utility model is compared with prior art and has been reduced asbestos layer, mica tape and metal tape retaining fire bed, has improved fire resistance again when reducing the cable production cost, can obtain good economic benefit.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Accompanying drawing 1 is the cross section structure schematic diagram of low smoke and zero halogen medium-pressure power cable.
Embodiment
With reference to Figure of description mesohigh fire-resisting cable of the present utility model is done following detailed explanation.
Embodiment 1
A kind of low smoke and zero halogen medium-pressure power cable; 8.7/10 kilovolt of rated voltage; form by 3 cores, the wrapped glass cloth 7 of double-layer overlapping, low-smoke halogen-free polyolefin oxygen barrier layer 8, flame-proof silicon rubber restrictive coating 9, low-smoke halogen-free polyolefin sheath protective layer 10; outside core, be coated with glass cloth 7, low-smoke halogen-free polyolefin oxygen barrier layer 8, flame-proof silicon rubber restrictive coating 9 and low-smoke halogen-free polyolefin sheath protective layer 10 successively, low smoke and zero halogen inserts 6 is set in the space of core.
Core is surrounded with two-layer glass cloth 7 outward.Oxygen barrier layer 8 extrudes the low-smoke halogen-free polyolefin layer for one deck, and oxygen index is greater than 32%, and restrictive coating 9 extrudes the flame-proof silicon rubber layer for one deck, and oxygen index is greater than 40%, and sheath protective layer 10 extrudes the low-smoke halogen-free polyolefin layer for one deck, and oxygen index is greater than 32%.
Embodiment 2
A kind of low smoke and zero halogen medium-pressure power cable; 8.7/10 kilovolt of rated voltage; form by 3 cores, the wrapped glass cloth 7 of double-layer overlapping, low-smoke halogen-free polyolefin oxygen barrier layer 8, flame-proof silicon rubber restrictive coating 9, low-smoke halogen-free polyolefin sheath protective layer 10; outside core, be coated with glass cloth 7, low-smoke halogen-free polyolefin oxygen barrier layer 8, flame-proof silicon rubber restrictive coating 9 and low-smoke halogen-free polyolefin sheath protective layer 10 successively, low smoke and zero halogen inserts 6 is set in the space of core.
Wherein core is made up of stranded compact conductor layer 1, conductor shield 2, insulating barrier 3, insulation screen 4 and metal screen layer 5, and metal screen layer 5 adopts copper strips overlapping wrapped.
Core is surrounded with two-layer glass cloth 7 outward.Oxygen barrier layer 8 extrudes the low-smoke halogen-free polyolefin layer for one deck, and oxygen index is greater than 32%, and restrictive coating 9 extrudes the flame-proof silicon rubber layer for one deck, and oxygen index is greater than 40%, and sheath protective layer 10 extrudes the low-smoke halogen-free polyolefin layer for one deck, and oxygen index is greater than 32%.
Inserts, silicone rubber jacket material all adopt existing versatile material on the market.
Claims (4)
1, a kind of low smoke and zero halogen medium-pressure power cable comprises core and restrictive coating, it is characterized in that: be disposed with stranding band, oxygen barrier layer from inside to outside between described core and the described restrictive coating; Described restrictive coating is the flame-proof silicon rubber layer; Restrictive coating is outside equipped with the sheath protective layer, and described sheath protective layer is the low-smoke halogen-free polyolefin layer; In the space of described core, be provided with inserts.
2, low smoke and zero halogen medium-pressure power cable as claimed in claim 1 is characterized in that described stranding band is the wrapped glass layer of cloth of double-layer overlapping.
3, low smoke and zero halogen medium-pressure power cable as claimed in claim 1 is characterized in that described oxygen barrier layer is the low-smoke halogen-free polyolefin layer.
4, low smoke and zero halogen medium-pressure power cable as claimed in claim 1 is characterized in that described inserts is the low smoke and zero halogen inserts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200818109U CN201413732Y (en) | 2009-06-17 | 2009-06-17 | LSOH medium voltage power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200818109U CN201413732Y (en) | 2009-06-17 | 2009-06-17 | LSOH medium voltage power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201413732Y true CN201413732Y (en) | 2010-02-24 |
Family
ID=41715613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200818109U Expired - Fee Related CN201413732Y (en) | 2009-06-17 | 2009-06-17 | LSOH medium voltage power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201413732Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360617A (en) * | 2011-10-08 | 2012-02-22 | 江苏亨通电力电缆有限公司 | Cross-linked polyethylene insulated fireproof flame retardant power supply cable |
| CN110387129A (en) * | 2019-06-17 | 2019-10-29 | 东莞市明盛电气有限公司 | A kind of silicone rubber wire production method |
-
2009
- 2009-06-17 CN CN2009200818109U patent/CN201413732Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360617A (en) * | 2011-10-08 | 2012-02-22 | 江苏亨通电力电缆有限公司 | Cross-linked polyethylene insulated fireproof flame retardant power supply cable |
| CN110387129A (en) * | 2019-06-17 | 2019-10-29 | 东莞市明盛电气有限公司 | A kind of silicone rubber wire production method |
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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 |
Granted publication date: 20100224 Termination date: 20150617 |
|
| EXPY | Termination of patent right or utility model |