CN208722584U - Energy-saving fire proof power cable - Google Patents
Energy-saving fire proof power cable Download PDFInfo
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- CN208722584U CN208722584U CN201821616946.0U CN201821616946U CN208722584U CN 208722584 U CN208722584 U CN 208722584U CN 201821616946 U CN201821616946 U CN 201821616946U CN 208722584 U CN208722584 U CN 208722584U
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Abstract
A kind of energy-saving fire proof power cable, including the cable core being made of a plurality of insulated core, the conductor that insulated wire cores are twisted by more copper monofilament and the ceramic composite band outside conductor and cross-linked polyolefin insulating layer are formed；The twisted composition cable core of a plurality of insulated core, stranding gap filling have asbestos cord filled layer, and cable core outer surface is disposed with high fire-retardance band wrapping layer from the inside to the outside, ceramic polyolefin jacket extrudes liner layer, cable sheath and external sheath layer.Energy-saving fire proof power cable provided by the utility model can solve the problem that existing cable overload capacity is weak, fire retardant performance is poor, and overload capacity is strong, fire retardant performance is good, and cable operation is more safe and reliable, and the service life is longer.
Description
Technical field
The utility model relates to field of cables, especially a kind of energy-saving fire proof power cable.
Background technique
With the fast development that Chinese Urbanization is built, in building facility also increasingly to the demand of power cable
Greatly, energy conservation, fire prevention have become the new direction that building facility power cable develops.Therefore energy-saving fire proof power cable application and
Develop particularly important.
The power cable for building of most enterprises production at present is the power cable of general type, can only be met general
Service performance, fire protecting performance is poor, and product structure is followed successively by from inside to outside presses circular copper conductors, organosilane crosslinked polyethylene
Insulation, polypropylene filling rope, polypropylene twining package tape, polyvinyl chloride (polyethylene) liner, steel-tape armouring and polyvinyl chloride (poly- second
Alkene) sheath.
Its structure is simple, material falls behind, and comprehensive performance is general, has the disadvantages that
1, cable insulation is organosilane crosslinked polyethylene insulation, and working normally heat resisting temperature is 90 DEG C, and overload capacity is weaker.
2, cable filling rope and band are polypropylene copolymer, and heat-resistant deforming ability is poor, and not fire-retardant not fire resisting.
3, when cable liner and sheath are polyvinyl chloride insulation, burning generates toxic gas and black smoke, causes secondary injury；
Cable liner and sheath do not have flame-retarding characteristic, and bad mechanical property when being polyethylene.
4, cable armouring is double steel band gaps lapping structure, and cable bendable bilge radius is larger, and does not have self-locking function, pole
Overbending is easily caused to damage.
Summary of the invention
The technical problem to be solved by the utility model is to provide a kind of energy-saving fire proof power cables, can solve existing
The problem that cable overload capacity is weak, fire retardant performance is poor, overload capacity is strong, fire retardant performance is good, and cable operation is more pacified
Complete reliable, the service life is longer.
In order to solve the above technical problems, the technical scheme adopted by the utility model is:, and a kind of energy-saving fire prevention electric power is electric
Cable, including the cable core being made of a plurality of insulated core,
The conductor that insulated wire cores are twisted by more copper monofilament and the ceramic composite band outside conductor and
Cross-linked polyolefin insulating layer composition；
The twisted composition cable core of a plurality of insulated core, stranding gap filling have an asbestos cord filled layer, cable core outer surface by it is interior extremely
It is disposed with high fire-retardance band wrapping layer outside, ceramic polyolefin jacket extrudes liner layer, cable sheath and external sheath layer.
The quantity of ceramic composite band is two layers, and Duplication is not less than the 50% of bandwidth.
Cross-linked polyolefin insulating layer is 150 DEG C of irradiation crosslinked polyolefin insulating layers.
Cable sheath is aluminum alloy strip lock armo layer.
External sheath layer is halogen-free and low-smoke flame-retardant polyolefin sheathed layer.
Energy-saving fire proof power cable provided by the utility model, has the beneficial effect that:
1, wrapped using wrapped ceramic composite band outside conductor, it is ceramic stiff shell after being burnt at 1000 DEG C, highest can
Resistance to 3000 DEG C, guarantee that the long-time of route is unimpeded when fire.
2, core insulation uses 150 DEG C of irradiation crosslinked polyolefin insulatings, and working normally heat resisting temperature is 150 DEG C, overloads energy
Power is stronger, can carry larger capacity, instead of bigger specification cable, save the cost.
3, stranding gap filling uses asbestos material, and wrapped high fire-retardance band outside cable core all has very strong flame-retardant
Can, protect insulating layer is not burned to destroy.
4, liner layer is extruded using ceramic polyolefin jacket, fire protecting performance effect is good, and insulating layer is effectively prevent to be fired
Damage when burning.
5, cable sheath uses aluminium alloy lock armo structure, and cable bendable bilge radius is smaller, and has self-locking function,
It effectively prevent cable overbending to damage.
6, external sheath layer is using halogen-free and low-smoke flame-retardant polyolefin sheathed, has a very strong flame retardant property, and when burning does not generate
Toxic gas and black smoke, and good mechanical property.
By being detected to the utility model,
A, cable electrical property performance detection, test result are shown in Table 1.
The testing result of 1 properties of product of table
B, fire-resistance property is shown in Table 2 by the test requirements document test result of BS 8491-2008.
2 cable low smoke and zero halogen performance testing result of table
C, low smoke and zero halogen characteristic is provided by GB/T19666-2005, and low smoke and zero halogen performance experimental test result is shown in Table 3.
3 cable low smoke and zero halogen performance testing result of table
The above results show: the properties of the utility model cable meet design requirement.With conventional power cable phase
Than structure novel, material is advanced, and the electric property and mechanical performance performance of cable are more superior, and has energy conservation, Special fireproof
Property.The cable has the characteristics such as strong, the LSOH anti-flaming flameproof protection of overload capacity.Cable is suitble to laying to be used in modern prosperity
It in city in the public environment of densely populated place, is more energy-saving and environmentally friendly, and can prevent excessive curved in laying and use process
Song, cable operation is more safe and reliable, and the service life is longer.
Detailed description of the invention
The utility model is described in further detail with reference to the accompanying drawings and examples:
FIG. 1 is a schematic structural view of the utility model.
Specific embodiment
As shown in Figure 1, a kind of energy-saving fire proof power cable, including thoroughly doing away with the cable core that edge cores form by four,
The conductor 1 that insulated wire cores are twisted by more copper monofilament and the ceramic composite band 2 outside conductor 1 with
And cross-linked polyolefin insulating layer 3 forms；
The twisted composition cable core of a plurality of insulated core, stranding gap filling have an asbestos cord filled layer 4, cable core outer surface by it is interior extremely
It is disposed with high fire-retardance band wrapping layer 5 outside, ceramic polyolefin jacket extrudes liner layer 6, cable sheath 7 and oversheath
Layer 8.
The quantity of ceramic composite band 2 is two layers, and Duplication is not less than the 50% of bandwidth.
Cross-linked polyolefin insulating layer 3 is 150 DEG C of irradiation crosslinked polyolefin insulating layers.
Cable sheath 7 is aluminum alloy strip lock armo layer.
External sheath layer 8 is halogen-free and low-smoke flame-retardant polyolefin sheathed layer.
The manufacturing process of the utility model is as follows:
1,1 process of conductor
Conductor 1 presses lay configuration using round copper monofilament.Firstly, manufacturing copper bar using up-drawing method production line, pass through copper
The monofilament of specification needed for big wire drawing machine is drawn.Secondly, being twisted using multifilament, it is layered by nanometer bunch mold
Twisted technology, direction of lay is on the contrary, guarantee that the close structure of conductor is stablized between adjacent layer.
2, ceramic composite band 2 is wrapped
Ceramic composite band two superimposed lapping structure is used outside conductor 1, Duplication is not less than the 50% of bandwidth, ceramics
Change composite band with a thickness of 0.20mm.
3, insulation extrusion and cross-linking radiation
Insulation extrusion
Insulation can irradiation crosslinked polyolefin insulating material using 150 DEG C.Insulating layer should be equably extruded on conductor 1, thickness
Average value should be not less than nominal value, and thinnest point thickness should be not less than the 90% of nominal thickness, and the degree of eccentricity is not more than 10%.Extrude layer
Answer smooth, no wedge angle, phenomena such as particle, burning, abrading in surface.Insulation nominal thickness is shown in Table 4.
Cross-linked polyolefin insulation nominal thickness of the table 4 at voltage rating 0.6/1KV
Insulation irradiation
It is handed over by the insulated wire cores extruded with the winding of ∞ shape in 3.0MeV electron accelerator irradiation using irradiation crosslinking technological
Join and carries out ultraviolet light irradiation cross-linking on two rollers of production line.To ensure crosslinking rate and the degree of cross linking, according to line footpath size,
Insulated wire cores are wound into multi-turn on roller.
4, stranding filling and it is wrapped
By insulated wire cores with red, yellow, green, blue, black sequential arrangement dextrad twisted synthesizing cable, asbestos cord is used in stranding gap
Dense packing effect forms asbestos cord filled layer 4, and cable core outer surface is formed by the high fire-retardance band left-hand overlapping wrapped two of 0.2mm thickness
Layer forms high fire-retardance band wrapping layer 5, and Duplication is not less than 15%, achievees the effect that cable core rounding.Surface must not have pleat
Phenomena such as wrinkle, lace, bottom pour ladle.
Stranding lay ratio are as follows: 25~35
5, liner layer extrudes
Liner layer uses ceramic polyolefin extruding technology.Ceramic polyolefin material should be equably extruded on cable core, mark
Claim with a thickness of 3.0mm, thinnest point thickness should be not less than the 90% of nominal thickness, extrude layer surface answer it is smooth, no wedge angle, particle,
Phenomena such as burning, abrading.Insulate nominal thickness
6, lock armo
Armouring uses aluminum alloy strip lock armo technology.Aluminum alloy strip is pressed into S type structure by briquetting roller, is then adopted
Cable sheath 7 is formed outside the liner core with interlocking form left-hand, arch should seamlessly transit, surface must not it is jagged,
Phenomena such as wedge angle.Aluminum alloy strip thickness is shown in Table 5.
5 aluminum alloy strip thickness of table
7, oversheath extrudes
Oversheath uses halogen-free and low-smoke flame-retardant polyolefin extruding technology.Oversheath should be equably extruded on armouring core,
Nominal thickness is 0.035 times of+1mm of armouring core outer diameter, and thickness average value should be not less than nominal value, thinnest point thickness Ying Bu little
In the 85% of nominal thickness.It extrudes layer surface and answers smooth, no wedge angle, phenomena such as particle, burning, abrading.
Sheath is extruded using φ 150-25 extruding machine, halogen-free and low-smoke flame-retardant polyolefin sheathed extrusion process temperature is shown in Table 6.
6 low smoke halogen-free flame-retardant polyolefin extrusion temperature unit of table: DEG C
The above embodiments are only the optimal technical scheme of the utility model, and are not construed as the limit for the utility model
System, the features in the embodiments and the embodiments of the present application in the absence of conflict, can mutual any combination.This is practical new
The protection scope of type should be with the technical solution of claim record, technical characteristic in the technical solution recorded including claim
Equivalents are protection scope.Equivalent replacement i.e. within this range is improved, also the protection scope of the utility model it
It is interior.
Claims (5)
1. a kind of energy-saving fire proof power cable, including the cable core being made of a plurality of insulated core, it is characterised in that:
The conductor (1) that insulated wire cores are twisted by more copper monofilament and the ceramic composite band (2) around conductor (1) outside
And cross-linked polyolefin insulating layer (3) composition；
The twisted composition cable core of a plurality of insulated core, stranding gap filling have asbestos cord filled layer (4), and cable core outer surface is from the inside to the outside
It is disposed with high fire-retardance band wrapping layer (5), ceramic polyolefin jacket and extrudes liner layer (6), cable sheath (7) and outer
Restrictive coating (8).
2. energy-saving fire proof power cable according to claim 1, it is characterised in that: the quantity of ceramic composite band (2)
It is two layers, Duplication is not less than the 50% of bandwidth.
3. energy-saving fire proof power cable according to claim 1, it is characterised in that: cross-linked polyolefin insulating layer (3) is
150 DEG C of irradiation crosslinked polyolefin insulating layers.
4. energy-saving fire proof power cable according to claim 1, it is characterised in that: cable sheath (7) is aluminium alloy
Band lock armo layer.
5. energy-saving fire proof power cable according to claim 1, it is characterised in that: external sheath layer (8) is low smoke, zero halogen
Flame retardant polyolefin sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821616946.0U CN208722584U (en) | 2018-09-30 | 2018-09-30 | Energy-saving fire proof power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821616946.0U CN208722584U (en) | 2018-09-30 | 2018-09-30 | Energy-saving fire proof power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208722584U true CN208722584U (en) | 2019-04-09 |
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ID=65983082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821616946.0U Active CN208722584U (en) | 2018-09-30 | 2018-09-30 | Energy-saving fire proof power cable |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110265184A (en) * | 2019-06-05 | 2019-09-20 | 金川集团股份有限公司 | A kind of novel discharge-preventing magnetic reactance interference high-energy irradiation cross-linking type cable |
| CN110364298A (en) * | 2019-07-27 | 2019-10-22 | 河南华星电线电缆有限公司 | A kind of fireproof cable |
-
2018
- 2018-09-30 CN CN201821616946.0U patent/CN208722584U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110265184A (en) * | 2019-06-05 | 2019-09-20 | 金川集团股份有限公司 | A kind of novel discharge-preventing magnetic reactance interference high-energy irradiation cross-linking type cable |
| CN110364298A (en) * | 2019-07-27 | 2019-10-22 | 河南华星电线电缆有限公司 | A kind of fireproof cable |
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