CN208607931U - A kind of armoured power cable - Google Patents
A kind of armoured power cable Download PDFInfo
- Publication number
- CN208607931U CN208607931U CN201821219915.1U CN201821219915U CN208607931U CN 208607931 U CN208607931 U CN 208607931U CN 201821219915 U CN201821219915 U CN 201821219915U CN 208607931 U CN208607931 U CN 208607931U
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- Prior art keywords
- sheath
- core
- power cable
- steel wire
- parts
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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Abstract
The utility model discloses a kind of armoured power cables, including the several wire core as conductor, the outer surface of the core is enclosed with insulating layer, and it is wrapped in the armor for being used to protect core outside core, and it is set in the first sheath outside armor, the armor includes the second sheath, steel wire and steel band, second sheath is wrapped in core outer surface, the steel wire is located in the second sheath and integrally formed with the second sheath, the steel wire is provided with several, and between steel wire in the second sheath close-packed arrays and the length direction spiral winding along core, the helically wound outer surface in the second sheath of the steel band；The armoured power cable has the advantages that structurally reasonable, shock resistance and anti-pull performance are good.
Description
Technical field
The utility model belongs to electrical facility technical field, and in particular to a kind of armoured power cable.
Background technique
Power cable is a kind of use for superscribing corresponding insulating sleeve as conductor and outside conductor by copper or aluminium
In transmitting and the cable of distribution electric energy, power cable are usually used in Urban Underground power grid, power station lead line, inside industrial and mining enterprises
Power and cross river sea submarine transmission line.Wherein with the continuous development in city, and for the safety and city appearance for electricity consumption
Succinct needs, more and more power cables have been embedded to underground, that is, constitute Urban Underground power grid；In order to guarantee the steady of power supply
Fixed and safety, power cable, which generally requires, is being equipped with armor, forms certain protection, to power cable to prevent power cable
It is unexpectedly destroyed, for example excavator accidentally digs disconnected or pulls power cable when construction, existing armouring electric power is electric
Cable is substantially the steel band or steel wire of individual spiral winded type, its impact resistance of the armor of steel band type is preferable, but its
Tensile property is limited, is effectively protected in power cable by cannot be formed when pullling；Although the armor of wire type improves
The anti-pull performance of power cable, but the shock resistance of its armor for arranging the caged formed by more steel is limited, is
The formation of armature of cable layer is effectively protected, that is, prevents the corrosion of steel wire or steel band in armor from needing in power cable
Outermost layer since sheath is directly facing worst use environment also result in existing power cable plus sheath
Protective cover material have the shortcomings that ageing-resistant and weatherability is poor and service life is shorter.
Utility model content
In view of this, the purpose of the utility model is to provide a kind of structurally reasonable, shock resistance and anti-pull performance are good
Armoured power cable.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is:
A kind of armoured power cable, including the several wire core as conductor, the outer surface of the core is enclosed with insulation
Layer, and the armor for being used to protect core being wrapped in outside core, and the first sheath being set in outside armor, the armour
Filling layer includes the second sheath, steel wire and steel band, and second sheath is wrapped in core outer surface, and the steel wire is located at the second sheath
Interior and integrally formed with the second sheath, the steel wire is provided with several, and close-packed arrays are simultaneously in the second sheath between steel wire
Along the length direction spiral winding of core, the helically wound outer surface in the second sheath of the steel band, due to being respectively provided with
The steel band and steel wire armor layer of spiral winding, to effectively increase the shock resistance and anti-pull performance of power cable, simultaneously
Due to being respectively provided with the first sheath and the second sheath, and steel wire is wrapped in the second sheath by the second sheath by crossing modeling,
Even if outermost first sheath accidental damage when power cable makes, and corrosion, but the second sheath and steel wire are produced to steel band
It cooperates and the second armor for being formed still can be provided for power cable and is effectively protected.
Preferably, being additionally provided with shielded layer on the core, the shielded layer is wrapped in the outer surface of the insulating layer of core,
The shielded layer is fine copper shielded layer, helps to play the role of shielding electric field, while can pass through generation in cable operation
Capacitance current.
Preferably, being additionally provided with filler between the core and the second sheath, the filler is PP filler, is helped to improve
Cable does punching performance.
Preferably, the raw material that first sheath and the second sheath include following weight is made: polyvinyl chloride
62-71 parts of particle, 28-39 parts of ethlyene dichloride, 5-11 parts of silicone micro mist, adjacent 11-14 parts of diformazan dioctyl phthalate, pelargonic acid are fragrant
2.2-2.4 parts of oxamides, 4-5 parts of carbon black, 8-9 parts of calcium carbonate, 1-1.3 parts of phosphite ester, 7-7.5 parts of barium metaborate, second
Bis-stearamides 2-3 parts of support, 13-17 parts of hydroquinone and 8-10 parts of phenyl salicylate.
Another problem to be solved in the utility model is to provide the first protective case and the second protection of a kind of armored cable
The manufacturing method of set, comprising the following steps:
1) it takes and carries out melting mixing processing in 62-71 parts of addition mixing machines of polyvinyl chloride particles, heating temperature in mixing machine
150-170 degree, mixing machine speed of agitator are set as 120-150 revolutions per minute；
2) when mixing built-in temperature reaches 40-55 and spends, it is added phosphite ester 1-1.3 parts, and continue to be stirred 5 points
Clock；
3) carbon black 4-5 parts, 13-17 parts of hydroquinone, ethylene bis stearamide 2-3 are added in the mixing machine in step 2
Part, 7-7.5 parts of barium metaborate, adjacent 11-14 parts of diformazan dioctyl phthalate, 5-11 parts of silicone micro mist, 8-10 parts of phenyl salicylate
Stirring is added in mixing machine and continued with 2.2-2.4 parts of pelargonic acid vanilla amide until after polyvinyl chloride particles whole melting
And continue agitating 10-15 minutes；
4) after being added ethlyene dichloride 28-39 parts in the mixing machine in step 3), and continue stirring 15-20 minutes, so
The heating temperature of mixing machine is adjusted to 160 degree afterwards.
5) calcium carbonate 8-9 parts is added in the mixing machine in step 4), and continues stirring 5-8 minutes, then mixing machine
Stop stirring, heating temperature is kept for 160 degree.
6) discharge port of mixing machine is connected with the feed inlet of power cable injection moulding machine, and carries out the second sheath and steel
Silk mixed injection molding forms and is wrapped in core wherein, then cools down to the second sheath.
7) surface of the second sheath carries out steel strip winding in step 6), while in the surface of steel band injection molding the first shield of package
Set, the first sheath injection molding simultaneously carry out after cooling down.
The utility model has the technical effect that following aspect: due to be respectively provided with spiral winding steel band and
Steel wire armor layer, to effectively increase the shock resistance and anti-pull performance of power cable, i.e. steel band in armor can be with
It provides for cable by side impacting force and cooperates steel wire that can provide the protection of shearing force, and the steel wire in cable sheath can
Effectively to enhance its anti-pull performance；Simultaneously because being respectively provided with the first sheath and the second sheath, and the second sheath passes through note
Steel wire is wrapped in the second sheath by modeling, though the outermost first sheath accidental damage when power cable makes, and to steel band
Corrosion is produced, but the second sheath and steel wire cooperate and the second armor formed still can provide effectively for power cable
Protection；In addition the second sheath of haloflex and other raisings as masterbatch and is added using Corvic in the application
The auxiliary agents of silicon micropowder of comprehensive performance, adjacent diformazan dioctyl phthalate, pelargonic acid vanilla amide, carbon black, calcium carbonate, phosphite ester, partially
Barium borate, ethylene bis stearamide, hydroquinone and phenyl salicylate；Wherein modifying agent of the haloflex as PVC masterbatch
And cooperate calcium carbonate and the adjacent diformazan dioctyl phthalate as plasticizer that can effectively improve the impact resistance of pvc sheath, toughness
And intensity, the intensity and wearability of sheath can be improved in the mutual cooperation of carbon black and silicone powder, while carbon black is also used as sheath
Coloring agent paints to it；Wherein phosphite ester and adjacent diformazan dioctyl phthalate, which cooperate, improves polyvinyl chloride in working process
When thermal stability；Pelargonic acid vanilla amide can be bitten in use by mouse to avoid sheath as mouse bite preventing agent and by
It destroys；The anti-flammability of sheath can be improved in barium metaborate；Ethylene bis stearamide can be improved polyvinyl chloride as lubricant and exist
Smoothness when injection molding；Hydroquinone and phenyl salicylate can be mentioned respectively as antioxidant and antiultraviolet auxiliary agent
The weather resistance of high sheath improves the ageing-resistant performance of sheath.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of armoured power cable of the utility model；
Fig. 2 is a kind of enlarged drawing in the section of armoured power cable of the utility model.
Specific embodiment
Specific embodiment of the present utility model is described in further detail below in conjunction with attached drawing, so that the utility model technology
Scheme is more readily understood and grasps.
In the present embodiment, it is to be understood that term " centre ", "upper", "lower", " top ", " right side ", " left end ",
" top ", " back side ", " middle part ", etc. instructions orientation or positional relationship be based on the orientation or positional relationship shown in the drawings, only
The utility model for ease of description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
In addition, the connection or fixed form between component if not otherwise specified in this embodiment, connection or solid
Determine mode can for fixed by bolt commonly used in the prior art or pin fix or pin shaft connection etc. modes, therefore, this
It is no longer described in detail in embodiment.
Embodiment 1:
As shown in attached drawing 1-2, a kind of armoured power cable, including the several wire core 1 as transmission power conductor, originally
Core 1 in embodiment is three, and the core 1 is formed by several fine copper copper wires are twisted, the outer surface package of the core 1
There is insulating layer 2, the insulating layer 2 is crosslinked polyetylene insulated layer, and the armour for being used to protect core 1 being wrapped in outside core 1
Layer 3, and the first sheath 4 being set in outside armor 3 are filled, the armor 3 includes the second sheath 31, steel wire 32 and steel band
33, second sheath 31 is wrapped in the outside of the insulating layer 2 of core 1, and the steel wire 32 is located in the second sheath 31 and with the
Two sheaths 31 are integrally formed by being molded, and the steel wire 32 is provided with several, and tight in the second sheath 31 between steel wire 32
Solid matter column and along the length direction spiral winding of core 1, the helically wound outer surface in the second sheath 31 of the steel band 33, by
Armor 3 is provided with the steel band 33 and steel wire 32 of spiral winding, to effectively increase the shock resistance and tension of power cable
The performance pulled, simultaneously because being respectively provided with the first sheath 4 and the second sheath 31, and the second sheath 31 passed through modeling for steel wire 32
It is wrapped in the second sheath 31, though outermost first sheath, 4 accidental damage when power cable uses, and steel band 33 is produced
Corrosion, but the second armor that the second sheath 31 and steel wire 32 cooperate and formed have been given birth to, still can be provided for power cable
It is effectively protected, i.e. steel wire is wrapped in by the main examination being molded and is wherein formed by armouring so as to avoid steel wire by the second sheath
Layer is corroded.Shielded layer 5 is additionally provided on the core 1, the shielded layer 5 is wrapped in the outer surface of the insulating layer 2 of core 1,
The shielded layer 5 is fine copper shielded layer 5, electric field produced by helping to play the role of shielded cable when in use.The core 1
And second be additionally provided with filler 6 between sheath 31, the filler 6 is PP filler, helps to improve cable puncture energy.
Embodiment 2:
A kind of first protective case of armored cable and the manufacturing method of the second protective case, comprising the following steps:
1) it takes and carries out melting mixing processing in 62 parts of addition mixing machines of polyvinyl chloride particles, heating temperature 150 in mixing machine
Degree, mixing machine speed of agitator are set as 120 revolutions per minute；
2) when mixing built-in temperature reaches 40 degree, it is added 1 part of phosphite ester, and continue to be stirred 5 minutes；
3) 4 parts of carbon black, 13 parts of hydroquinone, 2 parts of ethylene bis stearamide, metaboric acid are added in the mixing machine in step 2
2.2 parts of 7 parts of barium, adjacent 11 parts of diformazan dioctyl phthalate, 5 parts of silicone micro mist, 8 parts of phenyl salicylate and pelargonic acid vanilla amide are added to
In mixing machine and continues stirring after polyvinyl chloride particles all melting and continue agitating 10 minutes；
4) after being added 28 parts of ethlyene dichloride in the mixing machine in step 3), and continue stirring 15 minutes, it then will mixing
The heating temperature of machine is adjusted to 160 degree.
5) 8 parts of calcium carbonate are added in the mixing machine in step 4), and continues stirring 5 minutes, then mixing machine stopping is stirred
It mixes, heating temperature is kept for 160 degree.
6) discharge port of mixing machine is connected with the feed inlet of power cable injection moulding machine, and carries out the second sheath and steel
Silk mixed injection molding forms and is wrapped in core wherein, then cools down to the second sheath.
7) surface of the second sheath carries out steel strip winding in step 6), while in the surface of steel band injection molding the first shield of package
Set, the first sheath injection molding simultaneously carry out after cooling down.
Embodiment 3:
A kind of first protective case of armored cable and the manufacturing method of the second protective case, comprising the following steps:
1) it takes and carries out melting mixing processing in 66 parts of addition mixing machines of polyvinyl chloride particles, heating temperature 160 in mixing machine
Degree, mixing machine speed of agitator are set as 135 revolutions per minute；
2) when mixing built-in temperature reaches 47 degree, 1.1 parts of phosphite ester are added, and continue to be stirred 5 minutes；
3) in the mixing machine in step 2 be added 4.5 parts of carbon black, 15 parts of hydroquinone, 2.5 parts of ethylene bis stearamide, partially
7.3 parts of barium borate, adjacent 12.5 parts of diformazan dioctyl phthalate, 8 parts of silicone micro mist, 9 parts of phenyl salicylate and pelargonic acid vanilla amide 2.3
Part is added in mixing machine and continues stirring after polyvinyl chloride particles all melting and continue agitating 12 minutes；
4) after being added 33.5 parts of ethlyene dichloride in the mixing machine in step 3), and continue stirring 13 minutes, then will mix
The heating temperature of conjunction machine is adjusted to 160 degree.
5) 8.5 parts of calcium carbonate are added in the mixing machine in step 4), and continues stirring 6 minutes, then mixing machine stops
Stirring, heating temperature are kept for 160 degree.
6) discharge port of mixing machine is connected with the feed inlet of power cable injection moulding machine, and carries out the second sheath and steel
Silk mixed injection molding forms and is wrapped in core wherein, then cools down to the second sheath.
7) surface of the second sheath carries out steel strip winding in step 6), while in the surface of steel band injection molding the first shield of package
Set, the first sheath injection molding simultaneously carry out after cooling down.
Embodiment 4:
A kind of first protective case of armored cable and the manufacturing method of the second protective case, comprising the following steps:
1) it takes and carries out melting mixing processing in 71 parts of addition mixing machines of polyvinyl chloride particles, heating temperature 170 in mixing machine
Degree, mixing machine speed of agitator are set as 150 revolutions per minute；
2) when mixing built-in temperature reaches 55 degree, 1.3 parts of phosphite ester are added, and continue to be stirred 5 minutes；
3) 5 parts of carbon black, 17 parts of hydroquinone, 3 parts of ethylene bis stearamide, metaboric acid are added in the mixing machine in step 2
7.5 parts of barium, adjacent 14 parts of diformazan dioctyl phthalate, 11 parts of silicone micro mist, 10 parts of phenyl salicylate and 2.4 parts of pelargonic acid vanilla amide add
Enter into mixing machine and continues stirring after polyvinyl chloride particles all melting and continue agitating 15 minutes；
4) after being added 39 parts of ethlyene dichloride in the mixing machine in step 3), and continue stirring 20 minutes, it then will mixing
The heating temperature of machine is adjusted to 160 degree.
5) 9 parts of calcium carbonate are added in the mixing machine in step 4), and continues stirring 8 minutes, then mixing machine stopping is stirred
It mixes, heating temperature is kept for 160 degree.
6) discharge port of mixing machine is connected with the feed inlet of power cable injection moulding machine, and carries out the second sheath and steel
Silk mixed injection molding forms and is wrapped in core wherein, then cools down to the second sheath.
7) surface of the second sheath carries out steel strip winding in step 6), while in the surface of steel band injection molding the first shield of package
Set, the first sheath injection molding simultaneously carry out after cooling down.
Experimental example:
Experimental subjects: using the sheath that the utility model embodiment 2-4 is produced as experimental group one, experimental group two, real
Group three is tested, identical with the utility model type on the market and YJV-10kV-3*25 electricity with polyvinyl chloride protective case is bought
Power cable, and remove the pvc sheath of the power cable, the contrast groups using pvc sheath as this experimental example.
Experiment purpose: above-mentioned experimental group and the ultraviolet ray ageing test of contrast groups sheath, tensile strength, extension at break are tested
Rate, burn self-extinguishing time, and it is GB/T16422.2 that wherein ultraviolet ray ageing, which surveys formula standard, and simulates 2000 hours burn-in tests, draws
The testing standard for stretching intensity is ISO527-5:1997, and the testing standard of elongation at break is GB3923-83, wear-resisting property rubs
The standard of estimating for wiping coefficient is GB10006；Simultaneously by Experiment Data Records in following table.
In conjunction with being record respectively in experimental group one, experimental group two, experimental group three and contrast groups about about sheath in upper table
Ultraviolet ray ageing test, tensile strength, elongation at break, the experimental data for the self-extinguishing time that burns, by above table
The comparison of experimental data, it is known that the sheath in the utility model has preferably by force compared with ageing properties and higher stretching
Degree, and with the comparable elongation at break of sheath in experimental group.
The utility model has the technical effect that following aspect: due to be respectively provided with spiral winding steel band and
Steel wire armor layer, to effectively increase the shock resistance and anti-pull performance of power cable, i.e. steel band in armor can be with
It provides for cable by side impacting force and cooperates steel wire that can provide the protection of shearing force, and the steel wire in cable sheath can
Effectively to enhance its anti-pull performance；Simultaneously because being respectively provided with the first sheath and the second sheath, and the second sheath passes through note
Steel wire is wrapped in the second sheath by modeling, though the outermost first sheath accidental damage when power cable makes, and to steel band
Corrosion is produced, but the second sheath and steel wire cooperate and the second armor formed still can provide effectively for power cable
Protection；In addition the second sheath of haloflex and other raisings as masterbatch and is added using Corvic in the application
The auxiliary agents of silicon micropowder of comprehensive performance, adjacent diformazan dioctyl phthalate, pelargonic acid vanilla amide, carbon black, calcium carbonate, phosphite ester, partially
Barium borate, ethylene bis stearamide, hydroquinone and phenyl salicylate；Wherein modifying agent of the haloflex as PVC masterbatch
And cooperate calcium carbonate and the adjacent diformazan dioctyl phthalate as plasticizer that can effectively improve the impact resistance of pvc sheath, toughness
And intensity, the intensity and wearability of sheath can be improved in the mutual cooperation of carbon black and silicone powder, while carbon black is also used as sheath
Coloring agent paints to it；Wherein phosphite ester and adjacent diformazan dioctyl phthalate, which cooperate, improves polyvinyl chloride in working process
When thermal stability；Pelargonic acid vanilla amide can be bitten in use by mouse to avoid sheath as mouse bite preventing agent and by
It destroys；The anti-flammability of sheath can be improved in barium metaborate；Ethylene bis stearamide can be improved polyvinyl chloride as lubricant and exist
Smoothness when injection molding；Hydroquinone and phenyl salicylate can be mentioned respectively as antioxidant and antiultraviolet auxiliary agent
The weather resistance of high sheath improves the ageing-resistant performance of sheath.
Certainly, the representative instance of above only the utility model, in addition to this, the utility model can also have other a variety of
Specific embodiment, all technical solutions formed using equivalent substitution or equivalent transformation all fall within the requires of the utility model protection
Within the scope of.
Claims (4)
1. a kind of armoured power cable, including the several wire core as conductor, the outer surface of the core is enclosed with insulating layer,
And it is wrapped in the armor for being used to protect core outside core, and the first sheath being set in outside armor, feature exist
In: the armor includes the second sheath, steel wire and steel band, and second sheath is wrapped in core outer surface, the wire cut
In integrally formed in the second sheath and with the second sheath, the steel wire is provided with several, and between steel wire in the second sheath
Close-packed arrays and length direction spiral winding along core, the helically wound outer surface in the second sheath of the steel band.
2. a kind of armoured power cable according to claim 1, it is characterised in that: it is additionally provided with shielded layer on the core,
The shielded layer is wrapped in the outer surface of the insulating layer of core.
3. a kind of armoured power cable according to claim 2, it is characterised in that: the shielded layer is fine copper shielded layer.
4. a kind of armoured power cable according to claim 1, it is characterised in that: between the core and the second sheath also
Equipped with filler, the filler is PP filler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821219915.1U CN208607931U (en) | 2018-07-31 | 2018-07-31 | A kind of armoured power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821219915.1U CN208607931U (en) | 2018-07-31 | 2018-07-31 | A kind of armoured power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208607931U true CN208607931U (en) | 2019-03-15 |
Family
ID=65671494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821219915.1U Expired - Fee Related CN208607931U (en) | 2018-07-31 | 2018-07-31 | A kind of armoured power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208607931U (en) |
-
2018
- 2018-07-31 CN CN201821219915.1U patent/CN208607931U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190315 Termination date: 20210731 |