CN102360617A - Cross-linked polyethylene insulated fireproof flame retardant power supply cable - Google Patents
Cross-linked polyethylene insulated fireproof flame retardant power supply cable Download PDFInfo
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- CN102360617A CN102360617A CN2011102955691A CN201110295569A CN102360617A CN 102360617 A CN102360617 A CN 102360617A CN 2011102955691 A CN2011102955691 A CN 2011102955691A CN 201110295569 A CN201110295569 A CN 201110295569A CN 102360617 A CN102360617 A CN 102360617A
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- flame retardant
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- crosslinked polyetylene
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Abstract
The invention relates to a cross-linked polyethylene insulated fireproof flame retardant power supply cable comprising conductors, conductor shields covered outside the conductors, insulating layers covered outside the conductor shields and insulating shields covered outside the insulating layers, wherein the conductors, the conductor shields, the insulating layers and the insulating shields are lapped with metal shield layers to form insulated wire cores, and a plurality of insulated wire cores are wrapped with a strap to form a cable core; filling layers are filled in the gaps of the cable core; a sheath is sleeved outside the cable core; a ceramic silicone rubber fireproof layer is covered outside the cable core; and a halogen free flame retardant polyolefin protective fireproof layer is covered outside the ceramic silicone rubber fireproof layer. The cross-linked polyethylene insulated fireproof flame retardant power supply cable adopts a compound fireproof layer formed by the fireproof layer and the protective fireproof layer as an inner lining to be covered on the cable core, and the compound fireproof layer has excellent fireproof property, can achieve the A class flame retardant effect, and plays a beneficial effect on the fireproof property of the cable; and in flame, the cable can not release corrosive gas and dense smoke, can not form secondary hazard and is favorable for escape and rescue of personnel.
Description
Technical field
the present invention relates to a kind of crosslinked polyetylene insulated fire resistant flame retardant power cable.
Background technology
in the electric power system of these facilities, are brought into use the crosslinked polyetylene insulated fireproof power cable of rated voltage 8.7/10kV along with crowded places such as intelligent building, skyscraper increases.Because common power cable with cross-linked polyethylene insulation does not possess refractory ability; Can not under flame condition, keep supply line to continue operation safely and steadly, when breaking out of fire, cable can be very fast fire burns; Stop power supply, be unfavorable for personnel's evacuation egress and fire rescue.
Summary of the invention
the object of the invention provides the crosslinked polyetylene insulated fire resistant flame retardant power cable of a kind of rated voltage 8.7/10kV, is applicable to the 10kV transformer of crowded places such as intelligent building, skyscraper and the link cable between the switch cubicle.
For achieving the above object, the technical scheme that the present invention adopts is:
a kind of crosslinked polyetylene insulated fire resistant flame retardant power cable; Comprise conductor, be coated on the outside conductor screen of described conductor, be coated on the outside insulating barrier of described conductor screen, be coated on the outside insulation shielding of described insulating barrier; Form insulated wire cores behind the wrapped metal screen layer of described conductor, conductor screen, insulating barrier and insulation shielding; After holding band, many described insulated wire cores form cable core; Be filled with packed layer in the space of described cable core; Described cable core outer cover is provided with sheath, it is characterized in that: described cable core external packets is covered with potteryization silicon rubber flame retardant coating, and described flame retardant coating external packets is covered with halogen-free anti-flaming polyolefin protection flame retardant coating.
preferably, described halogen-free polyolefin protection flame retardant coating external packets is covered with dress armour layer.
preferably, described insulating barrier is crosslinked polyetylene insulated layer.
preferably, described band is the halogen-free flameproof band.
preferably, described packed layer is fire-retardant filler.
preferably, described sheath is a halogen-free anti-flaming polyolefin.
preferably, described conductor is a soft copper or hard-drawn aluminium wire is stranded forms.
Below the concrete design principle of the present invention down of setting forth:
present technique scheme adopts the flame retardant coating of potteryization silicon rubber as cable, and halogen-free anti-flaming polyolefin is as fire-resistant oxygen barrier protective layer, and flame retardant coating and protective layer are formed the composite fire-proof layer.Potteryization silicon rubber is under the ablation of flame; At first, overflow organic substance, begin sintering behind burning 2～4min by the constitution controller effect in the prescription; Generate ceramic-like housing isolation layer, the isolation layer of this porcelain shape housing can very effectively stop burning away of flame; In ensuing ablation process (porcelain shape housing is under 700 ℃～900 ℃ thermal-flame calcining catalysis), porcelain shape housing generates SiO
2
Pottery is and stands the isolated flame sheath that 700 ℃～1300 ℃ thermal-flames are ablated, and porcelain shape housing is hard, possesses certain mechanical performance, can resist scene of fire water and water and indirect mechanical shock.When cable ran into flame combustion, the high flame retardant oxygen barrier layer was separated out large quantity of moisture with the reduction ambient temperature, and formed molten aluminium oxide duricrust that does not fire, and isolated flame retardant coating contacts with air; After the aluminium oxide crust layer formed, cable became comprehensive heat radiation by the two ends heat radiation, has increased the area of dissipation of cable, has greatly improved the radiating mode of cable; The existence of oxygen barrier layer can reduce the surface temperature of cable; Stop that flame and heat spread to flame retardant coating, reduce the temperature of flame retardant coating, through the composite action of flame retardant coating and protective layer; Cable plays the function that under flame condition, keeps the circuit integrality, promptly realizes refractory ability.
Because the technique scheme utilization, the present invention compared with prior art has advantage and effect:
the present invention adopts the composite fire-proof layer of being made up of flame retardant coating and protection flame retardant coating to be coated on the cable core as inner covering; This composite fire-proof layer has excellent fire resistance; Through the acting in conjunction of halogen-free anti-flaming polyolefin with the collaborative fireprotection layer of potteryization silicon rubber organic material composition, potteryization silicon rubber can keep the circuit integrality of cable under flame condition; Halogen-free anti-flaming polyolefin assists to realize fire resistance, has also improved the fire retardancy of cable simultaneously, can reach the category-A flame retardant effect, also can play beneficial effect to the fire resistance of cable; Simultaneously, cable can not discharge corrosive gas and dense smoke under flame, can not form " secondary harm ", helps fleeing from and rescuing of personnel; In addition, can adopt existing maturation process to produce.
Description of drawings
Accompanying drawing 1 is the structural representation of embodiment one;
accompanying drawing 2 is the structural representation of embodiment two.
wherein: 1, conductor; 2, conductor screen; 3, insulating barrier; 4, insulation shielding; 5, metal screen layer; 6, packed layer; 7, halogen-free flameproof band; 8, flame retardant coating; 9, protection flame retardant coating; 10, sheath; 11, dress armour layer; 12, insulated wire cores.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further described:
Embodiment one:
A kind of crosslinked polyetylene insulated fire resistant flame retardant power cable that
are as shown in Figure 1; Comprise conductor 1, be coated on the outside conductor screen 2 of conductor 1, be coated on the outside insulating barrier 3 of conductor screen 2, be coated on the outside insulation shielding 4 of insulating barrier 3; Wherein, Conductor 1 is by soft copper or hard-drawn aluminium wire is stranded forms, and insulating barrier 3 is a crosslinked polyethylene.Conductor 1, conductor screen 2, insulating barrier 3 and insulation shielding 4 wrapped metal screen layers 5 backs form insulated wire cores 12, and many insulated core 10 holds halogen-free flameproof band 7 backs and forms cable core, and in the present embodiment, insulated wire cores 10 is provided with 3.In stranded process; Fill fire-retardant packed layer 6 in the cable core space, packed layer 6 is fire-retardant filler, and the cable core outside is extruded flame retardant coating 8, refractory protection 9 successively; Wherein: flame retardant coating 8 is a potteryization silicon rubber; Protection flame retardant coating 9 is a halogen-free anti-flaming polyolefin, is arranged with sheath 10 outside the protection flame retardant coating 9, and sheath 10 is a halogen-free anti-flaming polyolefin.
Embodiment two:
A kind of crosslinked polyetylene insulated fire resistant flame retardant power cable that
are as shown in Figure 2; The structure of present embodiment and embodiment one is basic identical; Difference is: at the protection flame retardant coating 9 outside dress armour layers 11 that coat, sheath 10 is set in the outside of dress armour layer 11.
the foregoing description only is explanation technical conceive of the present invention and characteristics, and its purpose is to let the personage who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (7)
1. crosslinked polyetylene insulated fire resistant flame retardant power cable; Comprise conductor, be coated on the outside conductor screen of described conductor, be coated on the outside insulating barrier of described conductor screen, be coated on the outside insulation shielding of described insulating barrier; Form insulated wire cores behind the wrapped metal screen layer of described conductor, conductor screen, insulating barrier and insulation shielding; After holding band, many described insulated wire cores form cable core; Be filled with packed layer in the space of described cable core; Described cable core outer cover is provided with sheath, it is characterized in that: described cable core external packets is covered with potteryization silicon rubber flame retardant coating, and described flame retardant coating external packets is covered with halogen-free anti-flaming polyolefin protection flame retardant coating.
2. a kind of crosslinked polyetylene insulated fire resistant flame retardant power cable according to claim 1 is characterized in that: described halogen-free polyolefin protection flame retardant coating external packets is covered with dress armour layer.
3. a kind of crosslinked polyetylene insulated fire resistant flame retardant power cable according to claim 1 is characterized in that: described insulating barrier is crosslinked polyetylene insulated layer.
4. a kind of crosslinked polyetylene insulated fire resistant flame retardant power cable according to claim 1, it is characterized in that: described band is the halogen-free flameproof band.
5. a kind of crosslinked polyetylene insulated fire resistant flame retardant power cable according to claim 1, it is characterized in that: described packed layer is fire-retardant filler.
6. a kind of crosslinked polyetylene insulated fire resistant flame retardant power cable according to claim 1, it is characterized in that: described sheath is a halogen-free anti-flaming polyolefin.
7. a kind of crosslinked polyetylene insulated fire resistant flame retardant power cable according to claim 1 is characterized in that: described conductor is a soft copper or hard-drawn aluminium wire is stranded forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102955691A CN102360617A (en) | 2011-10-08 | 2011-10-08 | Cross-linked polyethylene insulated fireproof flame retardant power supply cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102955691A CN102360617A (en) | 2011-10-08 | 2011-10-08 | Cross-linked polyethylene insulated fireproof flame retardant power supply cable |
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| CN102360617A true CN102360617A (en) | 2012-02-22 |
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| CN2011102955691A Pending CN102360617A (en) | 2011-10-08 | 2011-10-08 | Cross-linked polyethylene insulated fireproof flame retardant power supply cable |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102867589A (en) * | 2012-09-07 | 2013-01-09 | 江苏东峰电缆有限公司 | Middle-voltage fire-resistant power cable |
| CN103325475A (en) * | 2013-06-21 | 2013-09-25 | 无锡市群星线缆有限公司 | Flame-retardant fireproofing power cable |
| CN104123990A (en) * | 2014-08-08 | 2014-10-29 | 江苏亨通电力电缆有限公司 | 6kV-35kV crosslinked polyethylene insulated power cable with aluminum alloy conductors |
| CN104183308A (en) * | 2014-09-16 | 2014-12-03 | 朱忠良 | Wire and cable |
| WO2016145689A1 (en) * | 2015-03-18 | 2016-09-22 | 中天科技装备电缆有限公司 | Intrinsically safe oil-resistant and mud-resistant fireproof cable for offshore platform and manufacturing process |
| CN109830338A (en) * | 2018-12-29 | 2019-05-31 | 通鼎互联信息股份有限公司 | A kind of low-smoke bittern-free highly fire-proof integrated sheath railway signal cable |
| CN109903926A (en) * | 2019-02-26 | 2019-06-18 | 湖北宝上电缆有限公司 | A kind of fire prevention midium voltage cable |
| CN110148492A (en) * | 2019-06-25 | 2019-08-20 | 晋源电气集团股份有限公司 | A kind of cross-linked polyethylene insulation fire-proof inflaming retarding power cable |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998002889A1 (en) * | 1996-07-12 | 1998-01-22 | Ab Electrolux | Electric cable |
| US20030075354A1 (en) * | 1999-11-30 | 2003-04-24 | Jurgen Kuss | Electrical cable having a hardgrade-epr insulation |
| CN201413732Y (en) * | 2009-06-17 | 2010-02-24 | 四川明星电缆股份有限公司 | LSOH medium voltage power cable |
| CN201975130U (en) * | 2011-04-02 | 2011-09-14 | 上海永进电缆(集团)有限公司 | Three-core medium voltage flame-resistant cable |
-
2011
- 2011-10-08 CN CN2011102955691A patent/CN102360617A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998002889A1 (en) * | 1996-07-12 | 1998-01-22 | Ab Electrolux | Electric cable |
| US20030075354A1 (en) * | 1999-11-30 | 2003-04-24 | Jurgen Kuss | Electrical cable having a hardgrade-epr insulation |
| CN201413732Y (en) * | 2009-06-17 | 2010-02-24 | 四川明星电缆股份有限公司 | LSOH medium voltage power cable |
| CN201975130U (en) * | 2011-04-02 | 2011-09-14 | 上海永进电缆(集团)有限公司 | Three-core medium voltage flame-resistant cable |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102867589A (en) * | 2012-09-07 | 2013-01-09 | 江苏东峰电缆有限公司 | Middle-voltage fire-resistant power cable |
| CN103325475A (en) * | 2013-06-21 | 2013-09-25 | 无锡市群星线缆有限公司 | Flame-retardant fireproofing power cable |
| CN104123990A (en) * | 2014-08-08 | 2014-10-29 | 江苏亨通电力电缆有限公司 | 6kV-35kV crosslinked polyethylene insulated power cable with aluminum alloy conductors |
| CN104183308A (en) * | 2014-09-16 | 2014-12-03 | 朱忠良 | Wire and cable |
| WO2016145689A1 (en) * | 2015-03-18 | 2016-09-22 | 中天科技装备电缆有限公司 | Intrinsically safe oil-resistant and mud-resistant fireproof cable for offshore platform and manufacturing process |
| CN109830338A (en) * | 2018-12-29 | 2019-05-31 | 通鼎互联信息股份有限公司 | A kind of low-smoke bittern-free highly fire-proof integrated sheath railway signal cable |
| CN109903926A (en) * | 2019-02-26 | 2019-06-18 | 湖北宝上电缆有限公司 | A kind of fire prevention midium voltage cable |
| CN110148492A (en) * | 2019-06-25 | 2019-08-20 | 晋源电气集团股份有限公司 | A kind of cross-linked polyethylene insulation fire-proof inflaming retarding power cable |
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Application publication date: 20120222 |