CN203573724U - Not-great-than-35kV novel environment-friendly middling voltage fireproof cable - Google Patents
Not-great-than-35kV novel environment-friendly middling voltage fireproof cable Download PDFInfo
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- CN203573724U CN203573724U CN201320738540.0U CN201320738540U CN203573724U CN 203573724 U CN203573724 U CN 203573724U CN 201320738540 U CN201320738540 U CN 201320738540U CN 203573724 U CN203573724 U CN 203573724U
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- fireproof
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- 239000004020 conductor Substances 0.000 claims abstract description 15
- 239000000919 ceramic Substances 0.000 claims abstract description 14
- 238000009413 insulation Methods 0.000 claims abstract description 13
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 10
- 230000004888 barrier function Effects 0.000 claims abstract description 10
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 10
- 239000001301 oxygen Substances 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims abstract description 6
- 229910052751 metal Inorganic materials 0.000 claims abstract description 6
- 230000002093 peripheral effect Effects 0.000 claims abstract description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 20
- 229910052802 copper Inorganic materials 0.000 claims description 11
- 239000010949 copper Substances 0.000 claims description 11
- 239000003063 flame retardant Substances 0.000 claims description 9
- 229910003978 SiClx Inorganic materials 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims description 7
- 239000013536 elastomeric material Substances 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 10
- 229920002379 silicone rubber Polymers 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 abstract description 2
- 229920003020 cross-linked polyethylene Polymers 0.000 abstract description 2
- 239000004703 cross-linked polyethylene Substances 0.000 abstract description 2
- 239000004945 silicone rubber Substances 0.000 abstract description 2
- 239000010959 steel Substances 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 abstract 1
- 238000005286 illumination Methods 0.000 abstract 1
- 229910052736 halogen Inorganic materials 0.000 description 9
- 238000012360 testing method Methods 0.000 description 8
- 150000002367 halogens Chemical class 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- 229920001971 elastomer Polymers 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 239000005864 Sulphur Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000004132 cross linking Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 229920000098 polyolefin Polymers 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910001335 Galvanized steel Inorganic materials 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000008397 galvanized steel Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 238000002679 ablation Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000004079 fireproofing Methods 0.000 description 1
- -1 flame retardant Halogen Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical compound FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model provides a not-great-than-35kV novel environment-friendly middling voltage fireproof cable. Once a fire disaster occurs in an electric power system, the cable can still realize smooth electric power transmission and carry out normal power supply for emergency illumination and alarm devices and automatic fire-fighting and emergency equipment. The cable comprises three sets of power wire cores, a filling layer and a peripheral protection layer, wherein each of the power wire cores sequentially comprises a conductor, a conductor shielding layer, an crosslinked polyethylene insulation layer, an insulation shielding layer and a metal shielding layer from inside to outside, the protection layer sequentially comprises a fireproof layer, a flame retardation wrapping layer, an armoured steel band layer, an oxygen barrier layer and an outer sheath from inside to outside, and the fireproof layer is an environment-friendly ceramic silicone rubber material layer.
Description
technical field:
The utility model relate to a kind of fireproof cable and, be specially in a kind of 35kV and following novel environment-friendly and press fireproof cable, belong to cable preparing technical field.
background technology:
Quickening day by day along with Chinese society economic construction paces, there is scene in the fire that more and more needs of the important places such as skyscraper, power plant, nuclear power station, traffic tunnel, communication and power circuit must keep unobstructed operation in certain hour, for the quality time is striven in the rescue of evacuating personnel and property goods and materials.
At present, domestic common fireproof cable is in the majority with low pressure, is mainly used in the low-voltage distribution places such as skyscraper.But along with socio-economic development needs, intermediate distribution system, also has higher requirement in the fail safe under Fire Conditions to cable.Now only have on the market the fireproof cable using in low pressure situation, there is no middle pressure fireproof cable, so be necessary to develop.
utility model content:
The utility model provides in a kind of 35kV and following novel environment-friendly and presses fireproof cable for prior art situation, once this cable is in electric power system breaking out of fire situation, still can keep that cable is smooth and easy to transmit electric power, meet the normal power supply of emergency lighting, fire protection alarm device, automatic fire control and emergency set etc.
the purpose of this utility model realizes by following measures:
In a kind of 35kV and following novel environment-friendly, press fireproof cable, comprise three groups of power cores, packed layer and peripheral overcoat, described power core comprises from inside to outside successively: conductor, conductor screen, crosslinked polyetylene insulated layer, insulation screen, metal screen layer; Overcoat is followed successively by fireprotection layer, fire-retardant belting layer, armouring tape layer, Halogen oxygen barrier layer and polyolefin halogen-free flameproof oversheath from inside to outside; Described fireprotection layer is enviroment protective ceramic SiClx elastomeric material layer.
Described metal screen layer is copper wire and copper strips composite shielding.
the utility model has the following advantages compared to existing technology:
1, the utility model has been developed a kind of middle pressure fireproof cable that adopts particular form to produce, and this cable fire-proof layer adopts even sulphur mode to extrude environment-friendly ceramic SiClx elastomeric material.This environment-friendly ceramic SiClx elastomeric material is soft and flexible at normal temperatures, after burning, be easy to sinter into hard ceramic housing, can bear the vibrations of spray and the some strength of certain water, guaranteed that circuit is in ablated process, not short circuit, not on fire, do not prolong combustion, there is good fire protection flame retarding.This cable is with excellent fire prevention, flame-retarding characteristic, for new way has been opened up in the development of middle pressure fireproof cable.
2, copper wire+copper strip shielding structure of the present utility model not only plays the effect of electrostatic screen, has also played the effect of conducting failure electric current, thereby has guaranteed cable running safety.
3, this cable fire-proof layer design adopts ceramic silicone rubber fireproof material; this material is in 750-800 ℃ or above flame; sinter in a short period of time hard ceramic housing into; and at cable through after 90-180 minute or above time ablation; protection cable is not burned; and can bear the vibrations of spray and the some strength of certain water, can also guarantee the integrality of circuit.
4, at cable sheath, designed oxygen barrier layer outward, effectively isolated burning things which may cause a fire disaster.This product not only can meet the delivery of electrical energy requirement of intermediate distribution system, and owing to having designed fireprotection layer, oxygen barrier layer, can effectively guarantee fireproofing of cable requirement, meets the fail safe that cable moves under Fire Conditions.
accompanying drawing explanation:
Fig. 1 is the structural representation of the utility model cable.
1-conductor; 2-conductor shield; The crosslinked polyetylene insulated layer of 3-; 4-insulation screen; 5-copper wire copper strip shielding layer; 6-halogen-free flameproof packed layer; 7-enviroment protective ceramic SiClx rubber fireprotection layer; The fire-retardant wrapped belt of 8-; 9-armouring tape layer; 10-Halogen oxygen barrier layer; 11-polyolefin Halogen outer jacket.
embodiment:
embodiment mono-:
In 35kV of the present utility model and following novel environment-friendly, press fireproof cable, comprise three power cores, every power core is comprised of conductor 1, conductor shield 2, crosslinked polyetylene insulated layer 3, insulation screen 4, copper wire copper strip shielding layer 5, three power core twisted synthesizing cables.Adopt closely knit halogen-free flameproof packed layer 6, enviroment protective ceramic SiClx rubber fireprotection layer 7, fire-retardant twining package tape qi 8, steel-tape armouring layer 9, Halogen oxygen barrier layer 10, halogen-free flameproof outer jacket 11.
embodiment bis-:
Described in embodiment mono-, the concrete production method of cable is as follows:
1) stranded good compact conductor is passed through to the three-layer co-extruded cross-linking production line layering once-forming of catenary suspension type continuous vulcanization, once extrude conductor screen, crosslinked polyetylene insulated layer and insulation screen, 80～120 ℃ of extruder temperature control ranges, production line speed control is built in 8 ms/min, after extruding under nitrogen protection condition heat cross-linking, 280～340 ℃ of cross-linking tube heating and temperature control scopes; After crosslinked, pass through the cooling formation power of cooling section core, cooling section coolant-temperature gage is controlled at 50 ℃ again;
2) power core is wound around to reverse sparse grafting one deck copper strips again with copper wire, forms copper wire copper strip shielding layer;
3) then with back-twisting cabler, three power cores that tie screen are stranded for becoming cable core, laying up pitch is controlled the laying up diameter of the laying up diameter that is 29 times;
4) in mill by enviroment protective ceramic SiClx rubber (Shenzhen Woer Heat-Shrinkable Material Co., Ltd. produce ceramic silicon rubber TC9710) and 2, the mixed elastomeric compound that is processed into of 4-dichlorobenzoperoxide, ceramic silicon rubber and 2,4-dichlorobenzoperoxide (the two weight ratio 100/1), elastomeric compound is extruded in densely by connecting sulphur production line on the stranding cable core of step 3) and forms fireprotection layer, while extruding, control curing tube temperature at 115 ℃, curing tube vapor pressure is controlled at 0.07MPa, and production linear speed is 3.0m/min;
5) wrapped fire-retardant band outside cable fire-proof layer; Then wrapped two layers of galvanized steel strip in gap outside, clearance rate 45%, forms armouring tape layer;
6) outside cable armouring steel belt layer, by plastic extruding machine, extrude the oxygen barrier layer of high-fire-resistance material, extrude 120 ℃～160 ℃ of fuselage temperature controlling range;
7) finally outside cable oxygen barrier layer, by plastic extruding machine, protective cover material is extruded in to the outermost layer of cable, extrudes 120 ℃～160 ℃ of fuselage temperature controlling range, produce linear speed 8m/min.
Before company's sulphur machine head die sleeve in step 4), lining is equipped with tetrafluoroethene heat insulating mattress.
performance measurement:
the middle pressure fireproof cable physical dimension and the performance that adopt embodiment bis-methods to prepare are as follows:
The crosslinked polyetylene insulated LSOH anti-flaming category-A of rated voltage 8.7/15kV fireproof power cable WDZAN-YJF23-8.7/15 3 * 70
1. conductor 70mm
2
2. conductor screen: crosslinkable semiconductive shieldin material nominal thickness 0.7mm
3. insulation: cross-linked polyethylene insulating material nominal thickness 4.5mm
4. insulation shielding: crosslinkable semiconductive shieldin material nominal thickness 0.7mm
5. copper wire copper strips composite shielding: 16 reverse graftings of diameter phi 1.13 copper wire sparse winding+one deck copper strips
6. fireprotection layer: environment-friendly ceramic SiClx rubber TC9710 nominal thickness 3.5mm
7. flame-retardant layer: three layers of inhibiting tape are overlapping wrapped
8. armouring: two layers of galvanized steel strip gap are wrapped
9. Halogen oxygen barrier layer: high flame retardant Halogen protective cover material nominal thickness 3.0mm
10. sheath: low smoke, zero halogen polyolefin jacket material nominal thickness 2.9mm
3. fire resistance test: cable, under 750 ~ 800 ℃ of flame temperatures, applies cable rated operational voltage, for fiery 90min, cable insulation does not puncture during this time, after off-test, in 1 hour, the integrality of sample is checked, in the situation that keeping test reset condition, to sample, apply 3.5U
otest voltage continue 15min, cable insulation does not puncture.
4. this cable-flame retardant performance is reached bundle burning category-A
5. this cable Halogen performance: during burning, HCl burst size is less than 5mg/g; PH value >=4.3; Conductance≤10 μ S/mm; Light transmittance (smoke density) >=60%.
6. under cable normal temperature, bending property is good.
This fireproof cable is through the test determination of national electric wire Quality Supervision and Inspection Center:
This cable, under 750 ~ 800 ℃ of flame temperatures, applies cable rated operational voltage, for fiery 90min, cable insulation does not puncture during this time, after off-test, in 1 hour, the integrality of sample is checked, in the situation that keeping test reset condition, to sample, apply 3.5U
otest voltage continue 15min, cable insulation does not puncture, cable can keep switching on.Cable-flame retardant performance is reached bundle burning category-A.Cable Halogen performance: during burning, HCl burst size is less than 5mg/g; PH value >=4.3; Conductance≤10 μ S/mm; Light transmittance (smoke density) >=60%.
Claims (2)
1. in a 35kV and following novel environment-friendly, press fireproof cable, comprise three groups of power cores, packed layer and peripheral overcoat, described power core comprises from inside to outside successively: conductor, conductor shield, crosslinked polyetylene insulated layer, insulation screen, metal screen layer; It is characterized in that: overcoat is followed successively by fireprotection layer, fire-retardant belting layer, armouring tape layer, oxygen barrier layer and oversheath from inside to outside; Described fireprotection layer is enviroment protective ceramic SiClx elastomeric material layer.
2. fireproof cable according to claim 1, is characterized in that: described metal screen layer is copper wire and copper strips composite shielding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320738540.0U CN203573724U (en) | 2013-11-21 | 2013-11-21 | Not-great-than-35kV novel environment-friendly middling voltage fireproof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320738540.0U CN203573724U (en) | 2013-11-21 | 2013-11-21 | Not-great-than-35kV novel environment-friendly middling voltage fireproof cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203573724U true CN203573724U (en) | 2014-04-30 |
Family
ID=50541442
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320738540.0U Expired - Lifetime CN203573724U (en) | 2013-11-21 | 2013-11-21 | Not-great-than-35kV novel environment-friendly middling voltage fireproof cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203573724U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103606405A (en) * | 2013-11-21 | 2014-02-26 | 无锡市明珠电缆有限公司 | 35kV and below novel environment-friendly type middle voltage fireproof cable and production method thereof |
| CN104157352A (en) * | 2014-08-21 | 2014-11-19 | 江苏亨通电力电缆有限公司 | High-capacity intermediate pressure fireproof cable and preparation process thereof |
| CN104361945A (en) * | 2014-11-13 | 2015-02-18 | 无锡市明珠电缆有限公司 | Halogen-free flame-retardant low-temperature-resisting medium-voltage wind energy cable and manufacturing method thereof |
| CN107945974A (en) * | 2017-11-27 | 2018-04-20 | 安徽上缆防火科技股份有限公司 | A kind of isolated form mineral insulated cable |
-
2013
- 2013-11-21 CN CN201320738540.0U patent/CN203573724U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103606405A (en) * | 2013-11-21 | 2014-02-26 | 无锡市明珠电缆有限公司 | 35kV and below novel environment-friendly type middle voltage fireproof cable and production method thereof |
| CN103606405B (en) * | 2013-11-21 | 2015-12-09 | 无锡市明珠电缆有限公司 | Fireproof cable and production method thereof is pressed in 35kV and following novel environment-friendly |
| CN104157352A (en) * | 2014-08-21 | 2014-11-19 | 江苏亨通电力电缆有限公司 | High-capacity intermediate pressure fireproof cable and preparation process thereof |
| CN104361945A (en) * | 2014-11-13 | 2015-02-18 | 无锡市明珠电缆有限公司 | Halogen-free flame-retardant low-temperature-resisting medium-voltage wind energy cable and manufacturing method thereof |
| CN107945974A (en) * | 2017-11-27 | 2018-04-20 | 安徽上缆防火科技股份有限公司 | A kind of isolated form mineral insulated cable |
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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 |
Granted publication date: 20140430 |
|
| CX01 | Expiry of patent term |