CN202887776U - Metal sheath inorganic mineral insulation flexible fireproof cable - Google Patents
Metal sheath inorganic mineral insulation flexible fireproof cable Download PDFInfo
- Publication number
- CN202887776U CN202887776U CN201220483878.1U CN201220483878U CN202887776U CN 202887776 U CN202887776 U CN 202887776U CN 201220483878 U CN201220483878 U CN 201220483878U CN 202887776 U CN202887776 U CN 202887776U
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- Prior art keywords
- inorganic mineral
- metal sheath
- mineral insulation
- cable
- fireproof cable
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Abstract
The utility model relates to a metal sheath inorganic mineral insulation flexible fireproof cable comprising a copper conductor. An outer side of the copper conductor is provided with an inorganic mineral insulation layer, an outer side of which is provided with a ripple-shaped metal sheath. The cable has advantages of excellent fireproof performance, good integral flexibility of cable, safety, environmental protection, good anti-corrosion performance, convenient installation, and simple production.
Description
Technical field
The utility model relates to a kind of cable, is specifically related to a kind of fireproof cable.
Background technology
Along with industrialization urbanization process accelerate, all kinds of fire incidents are frequent occurrence also, causes the massive losses of lives and properties.And along with the raising of fire-fighting consciousness, developed country must select fireproof cable according to different purposes at the electric distribution line of a part.Domestic power department is also promoted the use of fireproof cable in skyscraper and the public place of entertainment in city.
The sheath material of present common fireproof cable generally adopts polyvinyl chloride or crosslinked polyethylene.This cable is owing to its design feature, and refractory temperature is low, and fire-resistant reliability is not strong.When fire occured, common fire prevention fire control cable processed can't guarantee that circuit works on, and was difficult to strive for time of more growing for escape and rescue.A kind of magnesium oxide fireproof cable is arranged on the market, in actual use, have following problem: at first it is not suitable for mobile occasion, and copper pipe in a single day damaged insulation property can descend rapidly, and insulation property can sharply descend under the high temperature, so should not adopt in a large number in the engineering; Secondly, this cable is owing to the easy moisture absorption of magnesium oxide insulated, and cable is vertically moistureproof to require and avoid the metallic sheath damage especially to seem important that employing fluid sealant in termination can have a strong impact on useful life; Moreover manufacturing process also limited the factory length of cable, causes that joint increases, and the water-proofing treatment of joint is also very difficult, often because of the joint water inlet, causes insulation resistance defective.
Summary of the invention
Goal of the invention: the purpose of this utility model is in order to overcome deficiency of the prior art, to provide a kind of fire protecting performance superior, and whole cable is better flexible, safe and environmentally friendly, good corrosion resistance, easy for installation, make simple metal sheath inorganic mineral insulation flexible fireproof cable.
Technical scheme: in order to solve the problems of the technologies described above, a kind of metal sheath inorganic mineral insulation flexible fireproof cable described in the utility model, it comprises copper conductor, is provided with the inorganic mineral insulation layer in described copper conductor outside, is provided with corrugated metal sheath in described inorganic mineral insulation layer outside.
Described copper conductor forms by the multiply annealed copper wire is stranded, thereby soft pliable is bent more.
Described copper conductor is single core or more than two cores.
Described corrugated metal sheath is corrugated copper sheath, and described corrugated copper sheath adopts copper strips to be welded copper strips non junction between unit cable length.
When the utility model adopted multicore to make, its cross section was at 35mm
2During following specification, fill with alkali-free glass wool the gap, and its cross section is at 50mmm
2When specification was above, the whole sector structure that adopts need not filler.
Beneficial effect: the utility model compared with prior art, its remarkable advantage is: the utility model is simple in structure, adopt the inorganic mineral insulation layer, greatly improved whole fire protecting performance, do not produce any pernicious gas during burning, it is a kind of environment-friendly and green product, adopt corrugated metal sheath, can effectively bear water spray and mechanical impact, adopt the stranded conductor of making of multiply annealed copper wire, increased the flexibility of whole cable, cable adopts metallic sheath, does not need poling, and is easy for installation, and the metallic sheath good corrosion resistance, whole manufacturing cost is lower.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Wherein:
1, copper conductor; 2, inorganic mineral insulation layer; 3, corrugated metal sheath
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
As shown in Figure 1, a kind of metal sheath inorganic mineral insulation flexible fireproof cable described in the utility model, it comprises copper conductor 1, is provided with inorganic mineral insulation layer 2 in described copper conductor 1 outside, is provided with corrugated metal sheath 3 in described inorganic mineral insulation layer 2 outside; Described copper conductor 1 forms by the multiply annealed copper wire is stranded; Described copper conductor 1 is single core or more than two cores; Described corrugated metal sheath 3 is corrugated copper sheath.The utility model is simple in structure, adopts the inorganic mineral insulation layer, has greatly improved whole fire protecting performance, not producing any pernicious gas during burning, is a kind of environment-friendly and green product, adopts corrugated metal sheath, can effectively bear water spray and mechanical impact, adopt the stranded conductor of making of multiply annealed copper wire, increased the flexibility of whole cable, cable adopts metallic sheath, do not need poling, easy for installation, and the metallic sheath good corrosion resistance, whole manufacturing cost is lower.
The utility model provides a kind of thinking and method; method and the approach of this technical scheme of specific implementation are a lot; the above only is preferred implementation of the present utility model; should be understood that; for those skilled in the art, under the prerequisite that does not break away from the utility model principle, can also make some improvements and modifications; these improvements and modifications also should be considered as protection range of the present utility model, in the present embodiment not clear and definite each part all available prior art realized.
Claims (4)
1. metal sheath inorganic mineral insulation flexible fireproof cable, it is characterized in that: it comprises copper conductor (1), be provided with inorganic mineral insulation layer (2) in described copper conductor (1) outside, be provided with corrugated metal sheath (3) in described inorganic mineral insulation layer (2) outside.
2. metal sheath inorganic mineral insulation flexible fireproof cable according to claim 1, it is characterized in that: described copper conductor (1) forms by the multiply annealed copper wire is stranded.
3. metal sheath inorganic mineral insulation flexible fireproof cable according to claim 1 is characterized in that: described copper conductor (1) is for single core or more than two cores.
4. metal sheath inorganic mineral insulation flexible fireproof cable according to claim 1, it is characterized in that: described corrugated metal sheath (3) is corrugated copper sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220483878.1U CN202887776U (en) | 2012-09-21 | 2012-09-21 | Metal sheath inorganic mineral insulation flexible fireproof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220483878.1U CN202887776U (en) | 2012-09-21 | 2012-09-21 | Metal sheath inorganic mineral insulation flexible fireproof cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202887776U true CN202887776U (en) | 2013-04-17 |
Family
ID=48079175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220483878.1U Expired - Lifetime CN202887776U (en) | 2012-09-21 | 2012-09-21 | Metal sheath inorganic mineral insulation flexible fireproof cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202887776U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102842371A (en) * | 2012-09-21 | 2012-12-26 | 江苏宝安电缆有限公司 | Flexible fireproof cable with metallic sheath inorganic mineral insulating layer |
-
2012
- 2012-09-21 CN CN201220483878.1U patent/CN202887776U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102842371A (en) * | 2012-09-21 | 2012-12-26 | 江苏宝安电缆有限公司 | Flexible fireproof cable with metallic sheath inorganic mineral insulating layer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130417 |