CN202275645U - Fire-resistant silicon rubber insulated refractory power cable with rated voltage of 1kV and below - Google Patents
Fire-resistant silicon rubber insulated refractory power cable with rated voltage of 1kV and below Download PDFInfo
- Publication number
- CN202275645U CN202275645U CN2011203717094U CN201120371709U CN202275645U CN 202275645 U CN202275645 U CN 202275645U CN 2011203717094 U CN2011203717094 U CN 2011203717094U CN 201120371709 U CN201120371709 U CN 201120371709U CN 202275645 U CN202275645 U CN 202275645U
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- wrapped
- silicon rubber
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Abstract
The utility model discloses a fire-resistant silicon rubber insulated refractory power cable with rated voltage of 1kV and below. The cable disclosed by the utility model comprises four circular twisted conductor units, an insulating layer wrapped on the surfaces of the conductor units, a filling layer, a glass tape, an inner lining layer, an armor layer and an outer sheath, wherein each conductor unit comprises a plurality of conducting wires; the filling layer is wrapped on the surface of the insulating layer and comprises a plurality of glass filaments; the glass tape is lapped on the surface of the filling layer; the armor layer is wrapped on the surface of the inner lining plate; the outer sheath is wrapped on the surface of the inner lining plate; and the armor layer is of a galvanized steel strip or a stainless steel strip. The fire-resistant silicon rubber insulated refractory power cable with the rated voltage of 1kV and below, disclosed by the utility model, can greatly improve refractory and flame-retardant performances, ensure that the excellent insulating property can be still kept under high-temperature combustion and moisture situations and ensure that the cable can work normally for a longer period of time under the situation of combustion with additional mechanical rapping and water spraying.
Description
Technical field
The utility model relates to a kind of power cable, relates in particular to a kind of rated voltage 1kV and following fire-resistant silicon rubber insulated fireproof power cable.
Background technology
Existing low pressure fireproof power cable is with two-layer or the multi layer cloud master tape is overlapping wrapped at conductive surface, and mica tape is as flame retardant coating.Mica tape is to be composited by mica paper, adhesive and reinforcing glass silk cloth; Wherein, mica paper is the material that plays electric insulation and fire-resistant effect, still; Mica paper does not almost have intensity; And have organic material layer, its deficiency is: cable can not bear high temperature, so this type of cable generally can only use below 200 ℃; Secondly, after meeting fire burns, organic material is burnt mistake, can cause the cable internal structure loosening and be loose unstable, even cause the mica insulation layer broken, and the normal function of supplying power that uses of very fast forfeiture can not continue to use; Besides, can produce carbide or silicon dioxide conduction after organic layer catches fire, also be to cause a reason can not normally using; Therefore use and receive certain limitation equally.Prior art often need use glass wool cloth to strengthen.Electrical industry is used mainly contains muscovite and phlogopite, and they have identical crystal structure.Though my company has the ripe overlapping wrapped fire-resisting cable production technology of mica tape, can only satisfy the requirement of GB/T19666-2005 fire resistance test.Therefore, design a kind of high-performance 0.6/1kV power cable, can improve fire resistance greatly, and under high-temp combustion and moisture conditions, still can keep good insulating properties, become the direction that those of ordinary skills make great efforts.
Summary of the invention
The utility model provides a kind of rated voltage 1kV and following fire-resistant silicon rubber insulated fireproof power cable; This power cable has improved fire-resistant and fire resistance greatly; Guaranteed under high-temp combustion and moisture conditions, still can keep good insulation property, guaranteed that cable knocks under the situation about spraying with water and can work normally the long period in burning and additional mechanical.
For achieving the above object, the technical scheme that the utility model adopts is: a kind of rated voltage 1kV and following fire-resistant silicon rubber insulated fireproof power cable comprise:
Four circular stranded conductor unit, this conductor element is made up of some wire.
Be coated on the insulating barrier on said conductor element surface;
One packed layer is coated on said surface of insulating layer, and this packed layer is made up of some glass fiber;
One glass tape is wrapped in said packed layer surface;
One inner covering, this inner covering are coated on the said glass tape;
One armour is coated on said liner surface;
One oversheath is coated on said liner surface.
Related content in the technique scheme is explained as follows:
1, in the such scheme, mass ratio is 10 ~ 9:6 ~ 5:1 between said methyl vinyl silicone rubber, white carbon and the silicone oil.
2, in the such scheme, said armour is galvanized steel strip or stainless steel band.
3, in the such scheme, said oversheath is the halogen-free and low-smoke flame-retardant polyolefin layer.
Because the technique scheme utilization, the utility model compared with prior art has advantage:
The utility model rated voltage 1kV and following fire-resistant silicon rubber insulated fireproof power cable; The insulating barrier that employing is made up of methyl vinyl silicone rubber, white carbon, silicone oil and porcelain powder; This insulating barrier has flame resistance can; Under high-temp combustion and moisture conditions, still can keep good insulation property, replace the flame retardant coating of common fire-resisting cable mica tape wrapped formation on conductor; In addition; Outside cable core, coat the fire-retardant band of one deck; And extrude halogen-free and low-smoke flame-retardant polyolefin sheathed material; Effectively strengthened the flame-retardant performance of cable, guaranteed that cable knocks under the situation about spraying with water and can work normally the long period in burning and additional mechanical, cable can pass through the BS6837 fire resistance test.
Description of drawings
In the above accompanying drawing: 1, conductor element; 2, wire; 3, insulating barrier; 4, packed layer; 5, glass tape; 6, inner covering; 7, armour; 8, oversheath.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described:
Embodiment: a kind of rated voltage 1kV and following fire-resistant silicon rubber insulated fireproof power cable, the voltage between this 1kV fireproof power cable and the ground is 0.6kv, voltage between phase and phase is 1kv, comprising:
Four circular stranded conductor unit 1, this conductor element 1 is made up of some wire 2.
Be coated on the insulating barrier 3 on said conductor element 1 surface.
One packed layer 4 is coated on said insulating barrier 3 surfaces, and this packed layer 4 is made up of some glass fiber;
One glass tape 5 is wrapped in said packed layer 4 surfaces;
One inner covering 6, this inner covering 6 are coated on the said glass tape 5;
One armour 7 is coated on said inner covering 6 surfaces;
One oversheath 8 is coated on said armour 7 surfaces; Said oversheath 8 is the halogen-free and low-smoke flame-retardant polyolefin layer, and the material of this halogen-free and low-smoke flame-retardant polyolefin layer is the halogen-free and low-smoke flame-retardant polyolefin material.
The above-mentioned armour 7 of stating is galvanized steel strip or stainless steel band.
When adopting above-mentioned rated voltage 1kV and following fire-resistant silicon rubber insulated fireproof power cable; Adopting insulating barrier to have flame resistance can; Under high-temp combustion and moisture conditions, still can keep good insulation property, replace the flame retardant coating of common fire-resisting cable mica tape wrapped formation on conductor; In addition; Outside cable core, coat the fire-retardant band of one deck; And extrude halogen-free and low-smoke flame-retardant polyolefin sheathed material; Effectively strengthened the flame-retardant performance of cable, guaranteed that cable knocks under the situation about spraying with water and can work normally the long period in burning and additional mechanical, cable can pass through the BS6837 fire resistance test.
The foregoing description only is the technical conceive and the characteristics of explanation the utility model, and its purpose is to let the personage who is familiar with this technology can understand content of the utility model and enforcement according to this, can not limit the protection range of the utility model with this.All equivalences of being done according to the utility model spirit change or modify, and all should be encompassed within the protection range of the utility model.
Claims (3)
1. a rated voltage 1kV and following fire-resistant silicon rubber insulated fireproof power cable is characterized in that: comprising:
Four circular stranded conductor unit (1), this conductor element (1) is made up of some wire (2);
Be coated on the insulating barrier (3) on said conductor element (1) surface;
One packed layer (4) is coated on said insulating barrier (3) surface, and this packed layer (4) is made up of some glass fiber;
One glass tape (5) is wrapped in said packed layer (4) surface;
One inner covering (6), this inner covering (6) are coated on the said glass tape (5);
One armour (7) is coated on said inner covering (6) surface;
One oversheath (8) is coated on said armour (7) surface.
2. power cable according to claim 1 is characterized in that: said armour (7) is galvanized steel strip or stainless steel band.
3. power cable according to claim 1 is characterized in that: said oversheath (8) is the halogen-free and low-smoke flame-retardant polyolefin layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203717094U CN202275645U (en) | 2011-10-08 | 2011-10-08 | Fire-resistant silicon rubber insulated refractory power cable with rated voltage of 1kV and below |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203717094U CN202275645U (en) | 2011-10-08 | 2011-10-08 | Fire-resistant silicon rubber insulated refractory power cable with rated voltage of 1kV and below |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202275645U true CN202275645U (en) | 2012-06-13 |
Family
ID=46195989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203717094U Expired - Fee Related CN202275645U (en) | 2011-10-08 | 2011-10-08 | Fire-resistant silicon rubber insulated refractory power cable with rated voltage of 1kV and below |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202275645U (en) |
-
2011
- 2011-10-08 CN CN2011203717094U patent/CN202275645U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SUZHOU POWER SUPPLY CO., LTD. OF JIANGSU ELECTRIC Effective date: 20150605 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150605 Address after: 215234 Wujiang City, Suzhou Province, the town of the town of the industry are the seven Patentee after: Hengtong Electric Cable Co., Ltd., Jiangsu Patentee after: Suzhou Power Supply Co., Ltd. of Jiangsu Electric Power Company Address before: 215234 Wujiang City, Suzhou Province, the town of the town of the industry are the seven Patentee before: Hengtong Electric Cable Co., Ltd., Jiangsu |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120613 Termination date: 20161008 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |