CN203760133U - Fire resistant middle voltage electric cable - Google Patents
Fire resistant middle voltage electric cable Download PDFInfo
- Publication number
- CN203760133U CN203760133U CN201320451823.7U CN201320451823U CN203760133U CN 203760133 U CN203760133 U CN 203760133U CN 201320451823 U CN201320451823 U CN 201320451823U CN 203760133 U CN203760133 U CN 203760133U
- Authority
- CN
- China
- Prior art keywords
- layer
- lateral surface
- surface covering
- fire resistant
- inner wire
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Insulated Conductors (AREA)
Abstract
A fire resistant middle voltage electric cable is disclosed and comprises a plurality of inner conducting bodies that are arranged and distributed, filling objects (6) that are arranged among the inner conducting bodies, a fire resistant layer (7), an inner protection sleeve (8), a steel band armor layer (9) and an outer protection sleeve (10), wherein the fire resistant layer (7), the inner protection sleeve (8), the steel band armor layer (9) and the outer protection sleeve (10) are orderly arranged from the inner conducting bodies and are wound around the outer side faces of the inner conducting bodies in a covering manner. Two fire resistant layers, two steel band layers and two flame retardation layers are formed. A mode characterized in that a single protection layer is formed outside each conducting wire (1) is not adopted, and therefore the middle voltage electric cable is improved in fire resistant performance.
Description
One, technical field
The utility model relates to a kind of midium voltage cable, especially a kind of midium voltage cable with fire resistance.
Two, background technology
The occasion that security against fire conditional request is high, what the cable using used substantially is fire proofing or non-fire proofing, once breaking out of fire, fire proofing also can only delay the time that cable insulation material is damaged, can not ensure cable insulation damage, make cable cause short circuit because of insulation harm, thereby affect information communication and delivery of electrical energy, also there is no a kind of midium voltage cable with fire resistance now.
Three, summary of the invention
In order to overcome above-mentioned technical disadvantages, the purpose of this utility model is to provide a kind of midium voltage cable with fire resistance, has therefore improved the fire resistance of midium voltage cable.
For achieving the above object, the technical scheme that the utility model is taked is: include be set to multiply arranged distribution inner wire, be arranged on filler between inner wire, start to be disposed with around the lateral surface of endosome flame retardant coating, inner sheath, steel-tape armouring layer and the oversheath covering from inner wire.
Owing to having designed inner wire, filler, flame retardant coating, inner sheath, steel-tape armouring layer and oversheath; two-layer flame retardant coating, two-layer steel belt layer, two-layer flame-retardant layer are formed; no longer just form the protective layer of individual layer in wire outside, therefore improved the fire resistance of midium voltage cable.
The utility model has designed, inner wire is set to include wire, internal shield, insulating barrier, outer shielding layer and steel band screen, on wire, be provided with the internal shield around lateral surface covering, on internal shield, be provided with the insulating barrier around lateral surface covering, on insulating barrier, be provided with the outer shielding layer around lateral surface covering, on outer shielding layer, be provided with the steel band screen around lateral surface covering, inner wire be set to three strands arranged together, on the inner wire of three strands, be provided with the flame retardant coating around lateral surface covering, between the inner wire of three strands, be provided with filler, on flame retardant coating, be provided with the inner sheath around lateral surface covering, on inner sheath, be provided with the steel-tape armouring layer around lateral surface covering, on steel-tape armouring layer, be provided with the oversheath around lateral surface covering.
Useful technique effect of the present utility model is: have inside and outside two-layer flame retardant coating: outer flame retardant coating is made up of fire-retardant oversheath and double-deck steel band, and interior flame retardant coating is made up of four layers of fire-resistant isinglass belt, double-deck gluing glass cloth band and fire-retardant inner sheath.Multicore cable is filled with inorganic paper string simultaneously; By adopting inside and outside two-layer fire-resistant layer structure, improve fire-resistant, fire protection requirement, may there is to cause because of breaking out of fire the probability of short circuit in reduction cable, while ensureing breaking out of fire, still can guarantee for a long time that electric energy transmitting and information communication are normal.
In the technical program, carrying out protective mulch at multiply inner wire lateral surface is important technical characterictic, in the technical field of midium voltage cable with fire resistance, has novelty, creativeness and practicality.
Four, brief description of the drawings
Fig. 1 is schematic diagram of the present utility model.
Five, embodiment
Fig. 1 is first embodiment of the present utility model, illustrate by reference to the accompanying drawings the present embodiment, include inner wire, filler 6, flame retardant coating 7, inner sheath 8, steel-tape armouring layer 9 and oversheath 10, inner wire is set to include wire 1, internal shield 2, insulating barrier 3, outer shielding layer 4 and steel band screen 5, on wire 1, be provided with the internal shield 2 around lateral surface covering, on internal shield 2, be provided with the insulating barrier 3 around lateral surface covering, on insulating barrier 3, be provided with the outer shielding layer 4 around lateral surface covering, on outer shielding layer 4, be provided with the steel band screen 5 around lateral surface covering, inner wire be set to three strands arranged together, on the inner wire of three strands, be provided with the flame retardant coating 7 around lateral surface covering, between the inner wire of three strands, be provided with filler 6, on flame retardant coating 7, be provided with the inner sheath 8 around lateral surface covering, on inner sheath 8, be provided with the steel-tape armouring layer 9 around lateral surface covering, on steel-tape armouring layer 9, be provided with the oversheath 10 around lateral surface covering.
In the present embodiment, internal shield 2 is set to 10kV semiconductive conductor screen material and extrudes the internal shield forming.
In the present embodiment, insulating barrier 3 is set to 10kV cross-linked polyethylene insulating material and extrudes the insulating barrier forming.
In the present embodiment, outer shielding layer 4 is set to 10kV semiconductive insulation shielding material and extrudes the outer shielding layer forming.
In the present embodiment, steel band screen 5 is set to the overlapping wrapped copper strips of individual layer.
In the present embodiment, filler 6 is set to fill inorganic paper string.
In the present embodiment, flame retardant coating 7 is set to by the fixing mica tape of gluing glass strap.
In the present embodiment, inner sheath 8 is set to oxygen index and is greater than 90 DEG C of pvc sheathing compounds of 36 and extrudes the flame-retardant layer forming.
In the present embodiment, steel-tape armouring layer 9 is set to the wrapped galvanized steel strip in two lamellar spacings.
In the present embodiment, oversheath 10 is set to oxygen index and is greater than 90 DEG C of pvc sheathing compounds of 36 and extrudes the flame-retardant layer forming.
Use wire 1 to carry out signal and communication or delivery of electrical energy, in the time there is fire, cable delivery of electrical energy and information transmission are to realize by wire 1, withstand voltagely mainly realize by insulation thickness.The present embodiment is exactly to ensure the complete of cable conductor and insulation by inside and outside two-layer flame retardant coating in the time of breaking out of fire, reach the normal purpose of design of electric energy transmitting and information communication, when breaking out of fire, the fire-retardant oversheath of outer flame retardant coating can play fire-retardant effect, thereby double-deck steel band is because steel band fusing point high hardness strong can reach fire-resistant effect; The fire-retardant inner sheath of interior flame retardant coating can play fire-retardant effect equally, inorganic paper string packed layer, four layers of fireproof mica belt and double-deck gluing glass cloth band make interior flame retardant coating form a confined space, play starvation and stop the further effect of burning, this different materials all has the feature of flame-retardant simultaneously, and the flame-retardant performance of cable is further promoted.The use of double-deck flame retardant coating makes cable obtain duplicate protection, makes cable completely cut off oxygen, does not prolong combustion and has again high temperature resistant, fire-resistant feature.
Second embodiment of the present utility model, internal shield 2 is set to 35kV semiconductive conductor screen material and extrudes the internal shield forming.Insulating barrier 3 is set to 35kV cross-linked polyethylene insulating material and extrudes the insulating barrier forming.Outer shielding layer 4 is set to 35kV semiconductive insulation shielding material and extrudes the outer shielding layer forming.Steel-tape armouring layer 9 is set to the wrapped stainless steel band in two lamellar spacings.
The utlity model has lower feature:
1, owing to having designed inner wire, filler 6, flame retardant coating 7, inner sheath 8, steel-tape armouring layer 9 and oversheath 10; two-layer flame retardant coating, two-layer steel belt layer, two-layer flame-retardant layer are formed; no longer just form the protective layer of individual layer in wire 1 outside, therefore improved the fire resistance of midium voltage cable.
2, owing to having designed inner wire, on wire 1, directly form protective layer, form the independent protective layer of isolation, the fire resistance of midium voltage cable is better.
In the midium voltage cable technical field with fire resistance; Every include be set to multiply arranged distribution inner wire, be arranged on filler 6 between inner wire, start to be disposed with technology contents around the lateral surface of endosome the flame retardant coating 7, inner sheath 8, steel-tape armouring layer 9 and the oversheath 10 that cover all in protection range of the present utility model from inner wire.
Claims (1)
1. one kind has the midium voltage cable of fire resistance, it is characterized in that: include the inner wire that is set to multiply arranged distribution, be arranged on the filler (6) between inner wire, start to be disposed with around the lateral surface of endosome the flame retardant coating (7) covering from inner wire, inner sheath (8), steel-tape armouring layer (9) and oversheath (10), inner wire is set to include wire (1), internal shield (2), insulating barrier (3), outer shielding layer (4) and steel band screen (5), on wire (1), be provided with the internal shield (2) around lateral surface covering, on internal shield (2), be provided with the insulating barrier (3) around lateral surface covering, on insulating barrier (3), be provided with the outer shielding layer (4) around lateral surface covering, on outer shielding layer (4), be provided with the steel band screen (5) around lateral surface covering, inner wire be set to three strands arranged together, on the inner wire of three strands, be provided with the flame retardant coating (7) around lateral surface covering, between the inner wire of three strands, be provided with filler (6), on flame retardant coating (7), be provided with the inner sheath (8) around lateral surface covering, on inner sheath (8), be provided with the steel-tape armouring layer (9) around lateral surface covering, on steel-tape armouring layer (9), be provided with the oversheath (10) around lateral surface covering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320451823.7U CN203760133U (en) | 2013-07-29 | 2013-07-29 | Fire resistant middle voltage electric cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320451823.7U CN203760133U (en) | 2013-07-29 | 2013-07-29 | Fire resistant middle voltage electric cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203760133U true CN203760133U (en) | 2014-08-06 |
Family
ID=51255379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320451823.7U Expired - Lifetime CN203760133U (en) | 2013-07-29 | 2013-07-29 | Fire resistant middle voltage electric cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203760133U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU214255U1 (en) * | 2022-06-30 | 2022-10-18 | Общество с ограниченной ответственностью "Камский кабель" | Fireproof power cable with two-layer paper insulation |
-
2013
- 2013-07-29 CN CN201320451823.7U patent/CN203760133U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU214255U1 (en) * | 2022-06-30 | 2022-10-18 | Общество с ограниченной ответственностью "Камский кабель" | Fireproof power cable with two-layer paper insulation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202258471U (en) | Environment-friendly fire-proof medium-voltage cable | |
| CN103310893B (en) | High-performance cable for construction | |
| CN202615874U (en) | Movable fireproof cable | |
| CN203338837U (en) | High-performance construction cable | |
| CN204651023U (en) | The halogen-free flameproof fireproof cable of modified node method | |
| CN202134273U (en) | Flame-retardant high temperature-resistant intrinsically safe computer cable | |
| CN204102616U (en) | A kind of novel flame-retardant fireproof cable | |
| CN208077662U (en) | A kind of extruded insulation fireproof power cable | |
| CN106158084A (en) | Track traffic DC dynamo and control composite cable | |
| CN106409395A (en) | Marine light power cable and manufacturing method thereof | |
| CN105976913A (en) | Improved-type medium-voltage fireproof power cable | |
| CN105976916A (en) | High flame-retardant power cable applied to nuclear power station | |
| CN203882684U (en) | A novel water tree resistant power cable | |
| CN203760139U (en) | Fireproof cable for ship | |
| CN202736565U (en) | Power cable used for nuclear power station | |
| CN203760133U (en) | Fire resistant middle voltage electric cable | |
| CN102122540A (en) | Highly-insulated flame-resistant cable | |
| CN102394126A (en) | Low-smoke halogen-free high-flame-retardant fire-resistant environmentally-friendly cable | |
| CN202373323U (en) | Flame-retardant control cable | |
| CN205984331U (en) | Nuclear power medium voltage power cable | |
| CN205038997U (en) | Heat -resisting fire -retardant fire prevention power cable | |
| CN208637188U (en) | A kind of outdoor flame-proof explosion-proof cable | |
| CN207800239U (en) | A kind of mining communication flexible cable of high fire-retardance flame-proof moisture resistance type | |
| CN202632822U (en) | Low-smoke halogen-free flame-retardant A type stainless steel armored cable | |
| CN202058490U (en) | Novel aviation cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140806 |
|
| CX01 | Expiry of patent term |