CN204695808U - Wind power generation system low smoke halogen-free fire retardant fire resistant frequency-changing cable - Google Patents
Wind power generation system low smoke halogen-free fire retardant fire resistant frequency-changing cable Download PDFInfo
- Publication number
- CN204695808U CN204695808U CN201520392156.9U CN201520392156U CN204695808U CN 204695808 U CN204695808 U CN 204695808U CN 201520392156 U CN201520392156 U CN 201520392156U CN 204695808 U CN204695808 U CN 204695808U
- Authority
- CN
- China
- Prior art keywords
- conductor
- cable
- earth connection
- main line
- power generation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Insulated Conductors (AREA)
- Inorganic Insulating Materials (AREA)
Abstract
The utility model discloses a kind of wind power generation system low smoke halogen-free fire retardant fire resistant frequency-changing cable, belongs to technical field of cables.This cable is provided with cable conductor, aluminium foil layer, braid and oversheath from inside to outside successively, and described cable conductor comprises main line and earth connection, and described main line comprises main conductor and main line insulating barrier, and described main line insulating barrier is coated on the outer surface of main conductor; Described earth connection comprises earth connection conductor and earth connection insulating barrier, and described ground insulation layer is coated on the outer surface of earthing conductor.Cable internal core structure of the present utility model adopts the distribution of product word, improve anti-interference in application process, decrease electromagnetic radiation, adopt double shield structure can anti-electromagnetic induction, imperfect earth and power line conducted interference, reduce inductance and prevent induced electromotive force excessive, and there is oil resistant and antiacid caustic corrosion, cold-resistant property, possess good fire-retardant and fire-resistant function.
Description
Technical field
The utility model relates to a kind of cable, especially a kind of oil resistant and antiacid caustic corrosion, cold-resistant property, possesses wind power generation system frequency converter and the generator connection control low smoke halogen-free fire retardant fire resistant frequency-changing cable of fire-retardant and fire-resistant effect.
Background technology
Along with the develop rapidly of modern industry, the demand of the mankind to the energy obviously increases, and conventional energy resource available on the earth day by day reduces, and how to realize the sustainable development of the energy, thus ensure the sustainable development of China's economy, be the energy strategy problem that we must solve.Traditional energy resource consumption is as coal; oil; the resource allowable exploitations such as natural gas are in atrophy, and this type of energy has a strong impact on earth environment generation after utilizing, as thermal power plant uses coal generating; produce a large amount of toxic and harmful contaminated air; in recent years country gets more and more for the measure of enviromental protection and improvement, and relevant ministries and commissions also propose a series of environmental protection policy, and country advocates use clean energy resource energetically; make full use of the natural resources the energy effect produced, and realizes the sustainable development of the energy.Current countries in the world are all in the effect of active development wind energy, along with the fast development of wind-driven generator installed capacity and the continuous maturation of wind generating technology, wind energy development has been included within the scope of the eight large high-technology field new forms of energy and power-saving technology that state key supports by country, and in future time, wind energy uses will be that state key develops one of energy.
Along with wind-driven generator level power constantly increases, the blade of unit is caused to have weighed tens of ton, during blade rotation, inertia is large especially, requiring that response speed is very difficult above synchronous with wind speed, want generator rotation speed and blade with dynamic, this just needs to have been come by frequency converter and an electric assembling, converter technique is adopted to realize, under the change of high-frequency wind speed, by frequency converter instantaneous change generator rotor current frequency, meet the dynamic group of generating and catch up with wind speed frequency change, make group machine stable output power, reduce the impact to electrical network, output remains line voltage.Ensure that wind-driven generator normally works, the power cable effect connecting frequency converter is very large.Traditional converter cable has basic low-smoke non-halogen flame-retardant effect, and fire-retardant rank is only common C level, if reach fire resistant requirements, also to carry out structural adjustment to cable, as mica tape coated on conductor (such as patent 201210158799.8 is exactly adopt mica belt and glass belt to improve its flame retardant effect), increase production cost.
Summary of the invention
The utility model object is to provide a kind of cable core to be symmetrical structure, and the wind power generation system of double shield body structure form and ceramic high molecular fire retardant polyolefin jacket material is with becoming low-smoke non-halogen flame-retardant fire-proof frequency conversion cable.This cable conductor insulating layer material uses cross-linked polyolefin insulator, and its aging front tensile strength is greater than 12.5N/mm
2, elongation at break is greater than 200%, and DC break down voltage intensity reaches 15kV and do not puncture.Cable core adopts " 3+3 " symmetrical structure form, can improve the anti-interference of Special cable of frequency-variable electric motor, decrease the electromagnetic radiation in whole system.This cable adopts aluminium foil and mesh grid double shield body structure in addition, and count is more than 90%, and this shielding can anti-electromagnetic induction, imperfect earth and power line conducted interference, reduction inductance and prevent induced electromotive force excessive.Double shield body had both played the effect suppressing electromagnetic wave externally to be launched, and can be used as again the passage of short circuit current, can play the protective effect of neutral core.Oversheath meets resistance to ozone, acid and alkali-resistance, salt fog resistance, and weatherability is strong, possesses the ceramic high molecular fire retardant polyolefine material of the resistance to fire action of high temperature flame-proof.Cable core and sheath material are Halogen, and after burning, smoke density light transmittance can reach more than 80%.The cable that this sheath material is produced crusts speed soon when meeting naked light burning, and crust hard closely knit, horizontal firing certainly can be put out and do not prolonged combustion, not melting under having flame or nonflame situation at 350 DEG C to 1600 DEG C, does not drip, does not come off, do not produce secondary disaster, hard ceramic-like armour body can be burnt till.Temperature is higher, and the ceramic-like armour body after time longer burning is harder, and its residue is ceramic inorganic thing, and residual volume is greater than 85%, and ceramic-like armour physical efficiency forms cellular fine holes, can play good fire insulation effect of heat insulation.
Solve above technical problem, the technical problem that the utility model solves can realize by the following technical solutions:
Wind power generation system low smoke halogen-free fire retardant fire resistant frequency-changing cable, is characterized in that,
Comprise the cable conductor, aluminium foil layer, braid and the oversheath that set gradually from inside to outside, described cable conductor comprises main line and earth connection, described aluminium foil layer is coated on the outer surface of cable conductor, described braid is coated on the outer surface of aluminium foil layer, and described oversheath is coated on the outer surface of braid;
Described main line and earth connection are respectively 3, the word arrangement of 3 main line finished products, and its gap embeds 3 earth connections, form " 3+3 " symmetrical structure form.Symmetrical cable structure is due to the interchangeability of wire, there is better electromagnetic compatibility, suppression electromagnetic interference is played a role, the humorous odd frequency in that of high order can be offset, improve the anti-interference of Special cable of frequency-variable electric motor, decrease the electromagnetic radiation in whole system.
Described main line comprises main conductor and main line insulating barrier, and described main line insulating barrier is coated on the outer surface of main conductor;
Described earth connection comprises earth connection conductor and earth connection insulating barrier, and described earth connection insulating barrier is coated on the outer surface of earthing conductor.
Further, described main conductor and earth connection conductor adopt single anaerobic tinned copper wire, and its purity reaches 99.99%.Conductor resistance rate is little.
Further, described main line insulating barrier and earth connection insulating barrier adopt crosslinked polyolefin materials.This material characteristic conforms GB/T17557-2010 standard-required, oxygen index reaches more than 30, and DC break down voltage intensity reaches 15kV, possesses good anti-flammability and low smoke and zero halogen.
Further, described aluminium foil layer thickness is 0.05mm, and vertical bag cable conductor surface, conducting surface outwardly.
Further, described braid uses tinned copper conductor, and count reaches more than 90%, and braid 360 degree is coated on aluminium foil layer conducting surface.This structure possesses anti-electromagnetic induction, imperfect earth and power line conducted interference; reduce inductance, prevent induced electromotive force extention effect, the effect suppressing electromagnetic wave externally to be launched can be played; can be used as again the passage of short circuit current, the protection system effect of neutral core can be played.
Further, described oversheath adopts ceramic high molecular fire retardant polyolefine material to extrude, and described oversheath has good insulation property, and under normal temperature, dielectric strength reaches>=24kV, specific insulation>=1.03X10
15Ω .m.This material heatproof-40 DEG C possesses the antiacid caustic corrosion of oil resistant to 90 DEG C, possesses Halogen characteristic, forms hard armour shape body, play effective fire-retardant fireproof protective effect to internal structure when meeting high-temp combustion.
Beneficial effect of the present invention:
1. the cable core insulating layer material of wind power generation system low smoke halogen-free fire retardant fire resistant frequency-changing cable of the present utility model uses cross-linked polyolefin insulator, and its aging front tensile strength is greater than 12.5N/mm
2, elongation at break is greater than 200%, and DC break down voltage intensity reaches 15kV and do not puncture;
2. wind power generation system low smoke halogen-free fire retardant fire resistant frequency-changing cable of the present utility model takes " 3+3 " symmetrical structure form on cable core, i.e. 3 main line finished products word arrangement, and its gap embeds 3 earth connections.Symmetrical cable structure is due to the interchangeability of wire; there is better electromagnetic compatibility, suppression electromagnetic interference is played a role, the humorous odd frequency in that of high order can be offset; improve the anti-interference of Special cable of frequency-variable electric motor, decrease the electromagnetic radiation in whole system;
3. wind power generation system low smoke halogen-free fire retardant fire resistant frequency-changing cable of the present utility model adopts aluminium foil and mesh grid shield structure, and the cable of this structure can anti-electromagnetic induction, imperfect earth and power line conducted interference, and reduction inductance, prevents induced electromotive force excessive.Screen had both played the effect suppressing electromagnetic wave externally to be launched, and can be used as again the passage of short circuit current, can play the protective effect of neutral core;
4. the oversheath of wind power generation system low smoke halogen-free fire retardant fire resistant frequency-changing cable of the present utility model adopts ceramic high molecular fire retardant polyolefine material, possesses acid and alkali-resistance oil corrosivity, ultraviolet radiation resisting, high temperature flame-proof fire resistance and good insulation property; Under normal temperature, dielectric strength reaches>=24kV, specific insulation>=1.03X10
15Ω .m.The normal serviceability temperature scope of product is-40 DEG C to 90 DEG C.Do not produce when cable is burned and prolong combustion without dropping, produce flue gas toxity and reach the requirement of Ministry of Public Security flame retardant products ZA1 grade standard.When meeting naked light burning, its sheath crusts rapidly and forms the hard closely knit extexine in surface, flame can not produce and prolong combustion, not melting under having flame or nonflame situation at 1600 DEG C, oversheath can burn till hard ceramic-like armour body, ceramic-like armour body after time longer burning is harder, plays effect that is heat insulation and fire insulation to inner cable core result.Its residue is ceramic inorganic thing, and residual volume is greater than 85%, and ceramic-like armour physical efficiency forms cellular fine holes, can play good fire insulation effect of heat insulation.This kind of product is widely used in frequency converter in wind power generation system and connects, and provide delivery of electrical energy, and in industrial and mining enterprises' equipment, frequency converter connects use;
5. wind power generation system low smoke halogen-free fire retardant fire resistant frequency-changing cable cable core physical property of the present utility model and electric property meet CB/T4396-2014(boats and ships Frequency Drive power cable) specify technical requirement, the aging front anti-tensile of sheath reaches by force and is greater than 9.0N/mm
2, elongation at break is greater than 90%.Product anti-flammability meets GB/T20286-2008(public place fire-retardant product authentication specifications) specify fire-retardant 1 grade standard, fire resistance meets GB/T19216.21-2003(power cable burning integrity test) standard gauge provisioning request.
Accompanying drawing explanation
Fig. 1 is the structural representation of wind power generation system low smoke halogen-free fire retardant fire resistant frequency-changing cable of the present utility model.
Description of reference numerals:
1 cable conductor; 11 main lines; 111 main conductor; 112 main line insulating barriers; 12 earth connections; 121 earth connection conductors; 122 earth connection insulating barriers; 2 aluminium foil layers; 3 braids; 4 oversheaths.
Embodiment
In order to understand the present invention better, illustrate content of the present invention further below in conjunction with embodiment, but content of the present invention is not only confined to the following examples, embodiment should not regard as the restriction to the utility model protection range.
Wind power generation system low smoke halogen-free fire retardant fire resistant frequency-changing cable, comprise the cable conductor 1, aluminium foil layer 2, braid 3 and the oversheath 4 that set gradually from inside to outside, described cable conductor comprises main line 11 and earth connection 12, described aluminium foil layer 2 is coated on the outer surface of cable conductor 1, described braid 3 is coated on the outer surface of aluminium foil layer 2, and described oversheath 4 is coated on the outer surface of braid 3; Described main line 11 and earth connection 12 are respectively 3, the word arrangement of 3 main line 11 finished products, and its gap embeds 3 earth connections 12, form " 3+3 " symmetrical structure form.Symmetrical cable structure is due to the interchangeability of wire, there is better electromagnetic compatibility, suppression electromagnetic interference is played a role, the humorous odd frequency in that of high order can be offset, improve the anti-interference of Special cable of frequency-variable electric motor, decrease the electromagnetic radiation in whole system.
Described main line 11 comprises main conductor 111 and main line insulating barrier 112, and described main line insulating barrier 112 is coated on the outer surface of main conductor 111; Described earth connection 12 comprises earth connection conductor 121 and earth connection insulating barrier 122, and described earth connection insulating barrier 122 is coated on the outer surface of earthing conductor 121.
Wherein, described main conductor 111 adopts single anaerobic tinned copper wire with earth connection conductor 121, and its purity reaches 99.99%, and this conductor resistance rate is little.Described main line insulating barrier 112 adopts crosslinked polyolefin materials with earth connection insulating barrier 122.This material behavior meets GB/T17557-2010 standard-required, and oxygen index reaches more than 30, and DC break down voltage intensity reaches 15kV, possesses good anti-flammability and low smoke and zero halogen.Described aluminium foil layer 2 thickness is 0.05mm, and vertical bag cable conductor surface, conducting surface outwardly.Described braid 3 uses tinned copper conductor, and count reaches more than 90%, and braid 360 degree is coated on aluminium foil layer 2 conducting surface.This structure possesses anti-electromagnetic induction, imperfect earth and power line conducted interference; reduce inductance, prevent induced electromotive force extention effect, the effect suppressing electromagnetic wave externally to be launched can be played; can be used as again the passage of short circuit current, the protection system effect of neutral core can be played.Described oversheath 4 adopts ceramic high molecular fire retardant polyolefine material to extrude, and described oversheath 4 has good insulation property, and under normal temperature, dielectric strength reaches>=24kV, specific insulation>=1.03X10
15Ω .m.This material heatproof-40 DEG C possesses the antiacid caustic corrosion of oil resistant to 90 DEG C, possesses Halogen characteristic, forms hard armour shape body, play effective fire-retardant fireproof protective effect to internal structure when meeting high-temp combustion.
Above content and structure describes the general principle of the utility model product, principal character and advantage of the present utility model, and the technical staff of the industry should understand.What describe in above-mentioned example and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all belong within claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (6)
1. wind power generation system low smoke halogen-free fire retardant fire resistant frequency-changing cable, is characterized in that,
Comprise the cable conductor, aluminium foil layer, braid and the oversheath that set gradually from inside to outside, described cable conductor comprises main line and earth connection, described aluminium foil layer is coated on the outer surface of cable conductor, described braid is coated on the outer surface of aluminium foil layer, and described oversheath is coated on the outer surface of braid; Described main line and earth connection are respectively 3, the word arrangement of 3 main line finished products, and its gap embeds 3 earth connections, form " 3+3 " symmetrical structure form; Described main line comprises main conductor and main line insulating barrier, and described main line insulating barrier is coated on the outer surface of main conductor; Described earth connection comprises earth connection conductor and earth connection insulating barrier, and described earth connection insulating barrier is coated on the outer surface of earthing conductor.
2. wind power generation system low smoke halogen-free fire retardant fire resistant frequency-changing cable according to claim 1, is characterized in that, described main conductor and earth connection conductor adopt single anaerobic tin-coated copper, and its purity reaches 99.99%.
3. wind power generation system low smoke halogen-free fire retardant fire resistant frequency-changing cable according to claim 1, is characterized in that, described main line insulating barrier and earth connection insulating barrier adopt crosslinked polyolefin materials.
4. wind power generation system low smoke halogen-free fire retardant fire resistant frequency-changing cable according to claim 1, is characterized in that, described aluminium foil layer thickness is 0.05mm, and vertical bag cable conductor surface, conducting surface outwardly.
5. the low smoke halogen-free fire retardant fire resistant frequency-changing cable of the wind power generation system according to claim 1 or 4, is characterized in that, described braid uses tinned copper conductor, and count reaches more than 90%, and braid 360 degree is coated on aluminium foil layer conducting surface.
6. wind power generation system low smoke halogen-free fire retardant fire resistant frequency-changing cable according to claim 1, it is characterized in that, described oversheath adopts ceramic high molecular fire retardant polyolefine material to extrude, and under described oversheath normal temperature, dielectric strength reaches>=24kV, specific insulation>=1.03X10
15Ω m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520392156.9U CN204695808U (en) | 2015-06-09 | 2015-06-09 | Wind power generation system low smoke halogen-free fire retardant fire resistant frequency-changing cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520392156.9U CN204695808U (en) | 2015-06-09 | 2015-06-09 | Wind power generation system low smoke halogen-free fire retardant fire resistant frequency-changing cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204695808U true CN204695808U (en) | 2015-10-07 |
Family
ID=54236070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520392156.9U Active CN204695808U (en) | 2015-06-09 | 2015-06-09 | Wind power generation system low smoke halogen-free fire retardant fire resistant frequency-changing cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204695808U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106848783A (en) * | 2015-12-03 | 2017-06-13 | 邓筠锦 | Earth lead structure |
-
2015
- 2015-06-09 CN CN201520392156.9U patent/CN204695808U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106848783A (en) * | 2015-12-03 | 2017-06-13 | 邓筠锦 | Earth lead structure |
| CN106848783B (en) * | 2015-12-03 | 2020-01-07 | 邓筠锦 | Grounding wire structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205028678U (en) | Medium voltage fireproof cable | |
| CN104464941A (en) | Novel insulated cable | |
| CN202025562U (en) | Inflaming retarding and fire-resistant cable without armoring | |
| CN204695808U (en) | Wind power generation system low smoke halogen-free fire retardant fire resistant frequency-changing cable | |
| CN201975130U (en) | Three-core medium voltage flame-resistant cable | |
| CN201402667Y (en) | High voltage power supply and distribution power cable | |
| CN204463893U (en) | A kind of mineral insulating flexible fireproof cable | |
| CN204946583U (en) | The chain armored fireproofing frequency-changing cable of copper strips | |
| CN207558465U (en) | A kind of shell-less fire resistant low-voltage cable | |
| CN208077640U (en) | A kind of Novel fireproof cable | |
| CN202549472U (en) | Fire-resistant power cable | |
| CN207441291U (en) | A kind of low-smoke non-halogen flame-retardant and fire resisting photovoltaic cable | |
| CN207676711U (en) | A kind of environmental protection flame retardant fireproof control cable | |
| CN212209000U (en) | Aluminum alloy medium-voltage fireproof cable for frequency converter | |
| CN204463922U (en) | A kind of low-smoke non-halogen flame-retardant fire resistant flexible midium voltage cable | |
| CN2563714Y (en) | New flame-retardant power cable | |
| CN204632358U (en) | Novel concentric conductor flexible fire-proof cable | |
| CN208271595U (en) | It is a kind of based on can Ceramic composite material flame retardant cable | |
| CN205177471U (en) | This ampere of type fireproof cable | |
| CN202615895U (en) | Environmental protection type high temperature resistant power cable | |
| CN104575806A (en) | Insulated fireproof mineral cable | |
| CN204463923U (en) | A kind of low smoke and zero halogen strengthens waterproof flexible fireproof cable | |
| CN211555553U (en) | Economical and applicable medium-voltage fire-resistant power cable | |
| CN218274015U (en) | Cable with double insulation effects for power equipment | |
| CN206774280U (en) | A kind of nanometer high temperature fire protection flame retarding cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |