CN203026250U - Waterproof and fireproof power cable provided with steel sheets - Google Patents
Waterproof and fireproof power cable provided with steel sheets Download PDFInfo
- Publication number
- CN203026250U CN203026250U CN 201220598186 CN201220598186U CN203026250U CN 203026250 U CN203026250 U CN 203026250U CN 201220598186 CN201220598186 CN 201220598186 CN 201220598186 U CN201220598186 U CN 201220598186U CN 203026250 U CN203026250 U CN 203026250U
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- coated
- power cable
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Abstract
The utility model discloses a waterproof and fireproof power cable provided with steel sheets. The waterproof and fireproof power cable comprises multiple sets of conductors, the outside of each set of conductors is coated with a composite insulating layer and a mica tape successively to form an insulating wire core, the upper side and the lower side of the plurality of insulating wire cores are provided with two steel sheets respectively, the surface of each steel sheet is coated with a rustproof layer and a composite insulating layer, the outside of the rustproof layer is provided with a winding semiconductive nylon tape, a polyvinyl chloride insulating layer and a semiconductive shielding layer from inside to outside respectively, the plurality of insulating wire cores are stranded to form a cable core, the outside of the cable core is coated with a radial water resistance type buffer layer, the outside of the radial water resistance type buffer layer is coated with a Non-woven winding tape and a sheath layer respectively, and a filling layer is arranged between the cable core and the radial water resistance type buffer layer. According to the utility model, advantages of simple structure, good insulating performance and good fire-resistant characteristic can be realized, the cable can withstand high temperature flame burning for a long time, so the use security of the power cable can be ensured, the radial water resistance type buffer layer design is adopted, so the advantage of good waterproof function can be realized, the service life of the cable can be effectively prolonged, the threading process is easier through the steel sheets, and the cable can be effectively protected from being damaged.
Description
Technical field
The utility model relates to the electric wire field, is specially a kind of water-and fire-proof power cable with steel disc.
Background technology
Along with the fast development of power industry, urban construction, all trades and professions are more and more higher to the requirement of cable.Existing power cable insulation performance is not good, and fire resistance is relatively poor, when breaking out of fire; the not flame resistant baking of this class cable be difficult to isolated flame, so flame is easy to these protective layers of ablation; make cable directly be subject to the calcination of flame; have potential safety hazard, and the water resistance of common power cable is not good, the water capacity easily enters cable inside; cause insulating barrier to form water tree; the continuous oxidation of water tree causes the destruction to insulation, has so greatly shortened the life-span of cable.
The utility model content
The purpose of this utility model is to provide a kind of water-and fire-proof power cable with steel disc, not good to solve power cable insulation performance traditional in prior art, fire resistance is relatively poor, when fire occurs, cable is affected by the flame calcination easily and causes decreasing insulating, there is potential safety hazard, water resistance is not good, the problem that is easily seeped water and affect and cause shortening in cable useful life.
For achieving the above object, the technical solution adopted in the utility model is:
a kind of water-and fire-proof power cable with steel disc, include the array conductor, it is characterized in that: every group of conductor all is coated with composite insulation layer and mica tape outward successively, and formation insulated wire cores, the upper and lower sides that thoroughly do away with the edge core are provided with two steel discs more, the steel disc surface scribbles antirust coat, described composite insulation layer and antirust coat are outside, be followed successively by from inside to outside wrapped semiconductive nylon tape, polyvinyl chloride insulation layer and semiconductive shielding layer, the stranded formation cable core of several insulated wire cores, described cable core is coated with the radial water-resisting resilient coating, described radial water-resisting resilient coating is coated with nonwoven fabrics twining package tape and restrictive coating outward successively, be provided with packed layer between described cable core and radial water-resisting resilient coating.
Described a kind of water-and fire-proof power cable with steel disc is characterized in that: described restrictive coating adopts flame-proof polyvinyl chloride to make.
Described a kind of water-and fire-proof power cable with steel disc is characterized in that: described packed layer is the intumescent inserts that blocks water.
The beneficial effects of the utility model are:
The utility model is simple in structure, adopts the design of composite insulation layer, has effectively promoted the insulation property of power cable; Employing arranges the design of mica tape outside composite insulation layer, effectively promoted the fire-resistance property of cable, can stand for a long time the thermal-flame calcination, has ensured the use safety of power cable; Adopt the design of radial water-resisting resilient coating; after water enters oversheath; the material water-proof material water-swellable; stop moisture further to spread along cable; have good waterproof action, effectively extended the useful life of cable, the use of steel disc; make cable in some cases threading be more prone to, and reinforce that metal-cored can effectively to protect cable to be difficult for damaged.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
as shown in Figure 1, water-and fire-proof power cable with steel disc, include array conductor 1, every group of outer composite insulation layer and mica tape 5 of all being coated with successively of conductor 1, and formation insulated wire cores, the upper and lower sides that thoroughly do away with the edge core are provided with two steel discs 9 more, steel disc 9 surfaces scribble antirust coat, composite insulation layer and antirust coat are outside, be followed successively by from inside to outside wrapped semiconductive nylon tape 2, polyvinyl chloride insulation layer 3 and semiconductive shielding layer 4, the stranded formation cable core of several insulated wire cores, cable core is coated with radial water-resisting resilient coating 6, outer nonwoven fabrics twining package tape 7 and the restrictive coating 8 of being coated with successively of radial water-resisting resilient coating 6.
Restrictive coating 8 adopts flame-proof polyvinyl chloride to make.
Claims (3)
1. with the water-and fire-proof power cable of steel disc, include the array conductor, it is characterized in that: every group of conductor all is coated with composite insulation layer and mica tape outward successively, and formation insulated wire cores, the upper and lower sides that thoroughly do away with the edge core are provided with two steel discs more, the steel disc surface scribbles antirust coat, described composite insulation layer and antirust coat are outside, be followed successively by from inside to outside wrapped semiconductive nylon tape, polyvinyl chloride insulation layer and semiconductive shielding layer, the stranded formation cable core of several insulated wire cores, described cable core is coated with the radial water-resisting resilient coating, described radial water-resisting resilient coating is coated with nonwoven fabrics twining package tape and restrictive coating outward successively, be provided with packed layer between described cable core and radial water-resisting resilient coating.
2. a kind of water-and fire-proof power cable with steel disc according to claim 1 is characterized in that: described restrictive coating adopts flame-proof polyvinyl chloride to make.
3. a kind of water-and fire-proof power cable with steel disc according to claim 1 is characterized in that: described packed layer is the intumescent inserts that blocks water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220598186 CN203026250U (en) | 2012-11-13 | 2012-11-13 | Waterproof and fireproof power cable provided with steel sheets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220598186 CN203026250U (en) | 2012-11-13 | 2012-11-13 | Waterproof and fireproof power cable provided with steel sheets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203026250U true CN203026250U (en) | 2013-06-26 |
Family
ID=48650216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220598186 Expired - Fee Related CN203026250U (en) | 2012-11-13 | 2012-11-13 | Waterproof and fireproof power cable provided with steel sheets |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203026250U (en) |
-
2012
- 2012-11-13 CN CN 201220598186 patent/CN203026250U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130626 Termination date: 20131113 |