CN207116081U - Fire-resisting cable is pressed in a kind of direct current - Google Patents
Fire-resisting cable is pressed in a kind of direct current Download PDFInfo
- Publication number
- CN207116081U CN207116081U CN201721119491.7U CN201721119491U CN207116081U CN 207116081 U CN207116081 U CN 207116081U CN 201721119491 U CN201721119491 U CN 201721119491U CN 207116081 U CN207116081 U CN 207116081U
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- China
- Prior art keywords
- band
- layer
- flame retardant
- low
- retardant coating
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Abstract
The utility model discloses in a kind of direct current and presses fire-resisting cable, the mica flame retardant coating formed including conductor and the double-deck calcining mica tape being coated on outside the conductor, the outside of the mica flame retardant coating is coated with low smoke, zero halogen polyolefin insulation layer around packet mode, by the wrapped cladding of band flame retardant coating after the multiple conductors for being coated with insulating barrier and back-fire relief gasket for packing are twisted, the band flame retardant coating includes double-layer ceramic SiClx adhesive tape and double-deck low-smoke non-halogen flame-retardant band, the double-layer ceramic SiClx adhesive tape presses one layer of ceramic silicone band with the double-deck low-smoke non-halogen flame-retardant band, one layer of low-smoke non-halogen flame-retardant band, one layer of ceramic silicone band and one layer of low-smoke non-halogen flame-retardant band are set by introversion and extroversion, layer of metal flame retardant coating is surrounded with the outside of the band flame retardant coating, low smoke, zero halogen sheath is extruded with the outside of the metal flame retardant coating.The utility model is packed using the fire resisting of point total mode, multiple layer refractory layer, substantially increases the fire resistant flame retardant performance of electric wire.
Description
Technical field
It the utility model is related to field of cable technology, and in particular to press fire-resisting cable in a kind of direct current.
Background technology
With the quickening of Chinese society economic construction paces, fireproof power cable be widely used in skyscraper, subway,
The important places such as power plant nuclear power station, tunnel.Due to the particularity of medium-pressure power cable structure, current fireproof power cable
Voltage class presses the occasion of power transmission and distribution because without mesohigh fire resistant electric power electricity all in 0.6/1KV and following in some needs
Cable, its security performance cannot ensure.In present conventional DC pressure fireproof power cable be mainly outside conductor wrapped fire resistant belt and
Flame retardant jacket materials.The effect of fire resisting is carried out by wrapped fire resistant belt, because fire resistant belt is production process is impaired and fire resistant belt performance
It is unstable, cause the fire resistance of high direct voltage fire safe type power cable unstable, it is impossible to ensure that fire resistance 100% closes
Lattice
Utility model content
The purpose of this utility model is to be directed to technological deficiency present in prior art, and provides in a kind of direct current and press fire resisting
Cable
Technical scheme is used by realize the purpose of this utility model：
Press fire-resisting cable in a kind of direct current, including conductor and the double-deck calcining mica tape that is coated on outside the conductor are formed
Mica flame retardant coating, the outside of the mica flame retardant coating is coated with low smoke, zero halogen polyolefin insulation layer, multiple bags around packet mode
Be covered with insulating barrier conductor and back-fire relief gasket for packing it is twisted after include double by the wrapped cladding of band flame retardant coating, the band flame retardant coating
Layer ceramic silicone band and double-deck low-smoke non-halogen flame-retardant band, the double-layer ceramic SiClx adhesive tape hinder with the double-deck low smoke and zero halogen
Combustion band presses one layer of ceramic silicone band, one layer of low-smoke non-halogen flame-retardant band, one layer of ceramic silicone band and one layer of low-smoke non-halogen flame-retardant
Band is set by introversion and extroversion, is surrounded with layer of metal flame retardant coating on the outside of the band flame retardant coating, the outside of the metal flame retardant coating is squeezed
It is surrounded by low smoke, zero halogen sheath.
The metal flame retardant coating is copper strips or steel band, and the low smoke, zero halogen sheath is low smoke, zero halogen polyolefin jacket.
The conductor is copper conductor.
The mica flame retardant coating that the utility model is formed by the double-deck calcining mica tape of each conductor outer cladding, outside multiple conductors
The band flame retardant coating of bag sandwich construction different materials again, it is covered with gold leaf again afterwards to belong to flame retardant coating, and other layers use low smoke, zero halogen material
Material is formed, and substantially increases the fire resistance of cable, and processing mode is plastic using existing wrapped and extruding, without replacing
Production equipment, facilitate processing and fabricating.
Brief description of the drawings
Fig. 1 is the structural representation that fire-resisting cable is pressed in direct current.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.It should be appreciated that this place
The specific embodiment of description only to explain the utility model, is not used to limit the utility model.
It is shown in Figure 1, press fire-resisting cable in a kind of direct current, including conductor 5 and the bilayer that is coated on outside the conductor
Calcine the mica flame retardant coating 6 that mica tape is formed, it is exhausted that the outside of the mica flame retardant coating around packet mode is coated with low smoke, zero halogen polyolefin
Edge layer 7, by 3 wrapped cladding of band flame retardant coating, institute after the multiple conductors for being coated with insulating barrier and back-fire relief gasket for packing are twisted
Stating band flame retardant coating 3 includes double-layer ceramic SiClx adhesive tape and double-deck low-smoke non-halogen flame-retardant band, the double-layer ceramic SiClx adhesive tape
With the double-deck low-smoke non-halogen flame-retardant band by one layer of ceramic silicone band, one layer of low-smoke non-halogen flame-retardant band, one layer of ceramic silica gel
Band and one layer of low-smoke non-halogen flame-retardant band are set by introversion and extroversion, and layer of metal flame retardant coating 2, institute are surrounded with the outside of the band flame retardant coating
State and low smoke, zero halogen sheath 1 is extruded with the outside of metal flame retardant coating.
The metal flame retardant coating is copper strips or steel band, and the low smoke, zero halogen sheath is low smoke, zero halogen polyolefin jacket.
The conductor is copper conductor, and the back-fire relief gasket for packing can use glass cord, and the low-smoke non-halogen flame-retardant band is
It is impregnated with the glass fiber tape of not halogen-containing fire retardant glue.
It should be noted that in the utility model, the material is existing known material, can be direct from the market
Purchase and use.
The utility model ensure that in direct current by increasing flame retardant coating, insulating refractory and copper strip shielding layer in cable
Press the stability of the fire resistance of fire safe type power cable.Copper strip shielding layer plays the effect of gear fire, prevents high temperature from being delivered to absolutely
In edge flame retardant coating.Due to adding multilayer barrier, the oxygen in air is seted to be led from penetrating into cable insulation flame retardant coating so as to reach
The insulating refractory (crosslinked polyethylene) of body only softens non-fusible, does not produce the effect of oxidation Decomposition, ensures cable energy during fire
The normal work in defined 90 points.
Described above is only preferred embodiment of the present utility model, it is noted that for the general of the art
For logical technical staff, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these change
Enter and retouch and also should be regarded as the scope of protection of the utility model.
Claims (3)
1. press fire-resisting cable in a kind of direct current, it is characterised in that including conductor and the double-deck calcining being coated on outside the conductor
The mica flame retardant coating that mica tape is formed, the outside of the mica flame retardant coating are coated with low smoke, zero halogen polyolefin insulation layer around packet mode,
It is resistance to by the wrapped cladding of band flame retardant coating, the band after the multiple conductors for being coated with insulating barrier and back-fire relief gasket for packing are twisted
Fire bed includes double-layer ceramic SiClx adhesive tape and double-deck low-smoke non-halogen flame-retardant band, the double-layer ceramic SiClx adhesive tape and the bilayer
Low-smoke non-halogen flame-retardant band is low by one layer of ceramic silicone band, one layer of low-smoke non-halogen flame-retardant band, one layer of ceramic silicone band and one layer
Cigarette halogen-free flameproof band is set by introversion and extroversion, and layer of metal flame retardant coating, the metal fire resisting are surrounded with the outside of the band flame retardant coating
The outside of layer is extruded with low smoke, zero halogen sheath.
2. press fire-resisting cable in direct current as claimed in claim 1, it is characterised in that the metal flame retardant coating is copper strips or steel band,
The low smoke, zero halogen sheath is low smoke, zero halogen polyolefin jacket.
3. press fire-resisting cable in direct current as claimed in claim 1, it is characterised in that the conductor is copper conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721119491.7U CN207116081U (en) | 2017-09-01 | 2017-09-01 | Fire-resisting cable is pressed in a kind of direct current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721119491.7U CN207116081U (en) | 2017-09-01 | 2017-09-01 | Fire-resisting cable is pressed in a kind of direct current |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207116081U true CN207116081U (en) | 2018-03-16 |
Family
ID=61585895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721119491.7U Expired - Fee Related CN207116081U (en) | 2017-09-01 | 2017-09-01 | Fire-resisting cable is pressed in a kind of direct current |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207116081U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3955265A1 (en) * | 2020-08-11 | 2022-02-16 | Prysmian S.p.A. | Fire resistant cable with dual insulation layer arrangement |
-
2017
- 2017-09-01 CN CN201721119491.7U patent/CN207116081U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3955265A1 (en) * | 2020-08-11 | 2022-02-16 | Prysmian S.p.A. | Fire resistant cable with dual insulation layer arrangement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180316 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |