SE445789B - FOR ELECTRIC INSULATION PROPOSED POLYMER MATERIAL WITH CIRCUIT BINDING WITH CABLE ISOLATED WITH THIS MATERIAL - Google Patents
FOR ELECTRIC INSULATION PROPOSED POLYMER MATERIAL WITH CIRCUIT BINDING WITH CABLE ISOLATED WITH THIS MATERIALInfo
- Publication number
- SE445789B SE445789B SE8001418A SE8001418A SE445789B SE 445789 B SE445789 B SE 445789B SE 8001418 A SE8001418 A SE 8001418A SE 8001418 A SE8001418 A SE 8001418A SE 445789 B SE445789 B SE 445789B
- Authority
- SE
- Sweden
- Prior art keywords
- carbon black
- polymeric material
- layer
- amount
- ohm
- Prior art date
Links
- 239000000463 material Substances 0.000 title claims description 39
- 239000002861 polymer material Substances 0.000 title claims description 6
- 238000009413 insulation Methods 0.000 title description 3
- 239000006229 carbon black Substances 0.000 claims description 27
- 239000004020 conductor Substances 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 10
- 239000011810 insulating material Substances 0.000 claims description 9
- 239000004698 Polyethylene Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 229920000573 polyethylene Polymers 0.000 claims description 6
- 229920001684 low density polyethylene Polymers 0.000 claims description 5
- 239000004702 low-density polyethylene Substances 0.000 claims description 5
- -1 polyethylene Polymers 0.000 claims description 5
- 229920001903 high density polyethylene Polymers 0.000 claims description 4
- 239000004700 high-density polyethylene Substances 0.000 claims description 4
- 241000872198 Serjania polyphylla Species 0.000 claims description 3
- 230000015556 catabolic process Effects 0.000 claims description 3
- 229920001038 ethylene copolymer Polymers 0.000 claims description 3
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 3
- 239000004800 polyvinyl chloride Substances 0.000 claims description 3
- 229920002379 silicone rubber Polymers 0.000 claims description 3
- 239000004945 silicone rubber Substances 0.000 claims description 3
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims 2
- 239000005977 Ethylene Substances 0.000 claims 2
- 229920001897 terpolymer Polymers 0.000 claims 2
- 235000019241 carbon black Nutrition 0.000 description 16
- 230000005855 radiation Effects 0.000 description 6
- 229920000642 polymer Polymers 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005755 formation reaction Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 229920006037 cross link polymer Polymers 0.000 description 1
- 239000011243 crosslinked material Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 229940096118 ella Drugs 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- OOLLAFOLCSJHRE-ZHAKMVSLSA-N ulipristal acetate Chemical compound C1=CC(N(C)C)=CC=C1[C@@H]1C2=C3CCC(=O)C=C3CC[C@H]2[C@H](CC[C@]2(OC(C)=O)C(C)=O)[C@]2(C)C1 OOLLAFOLCSJHRE-ZHAKMVSLSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/46—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes silicones
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/002—Inhomogeneous material in general
- H01B3/004—Inhomogeneous material in general with conductive additives or conductive layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Organic Insulating Materials (AREA)
- Conductive Materials (AREA)
- Insulated Conductors (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Description
soo141s-6 ' ; liggande uppfinning skall således kimrök med en partikelstorlek i intervallet från ca 200 nm till ca 500 nm och i en mängd i intervallet från ca 10 % till ca ü0% av kímrök- polymer- materialblandningens vikt blandas med det förnätbara polymerma- terialet innan detsamma strängsprutas och utsättes för bestrålning. soo141s-6 '; The present invention is thus to be carbon black with a particle size in the range from about 200 nm to about 500 nm and in an amount ranging from about 10% to about 10% of carbon black polymer. the weight of the material mixture is mixed with the crosslinkable polymer before being extruded and exposed to radiation.
Här skall icke göras något försök att ge en uttömmande för- klaring till det fenomenet, att den elektriska genomslagshållfast- heten förbättras i så hög grad; men man tror att ökningen av mängden grov kimrök - i jämförelse med den vanligen för fyllmedel eller färg- givande tillsatser använda mängden - avsevärt ökar diffunderingen av elektronerna när de passerar genom det förnätbara materialet, vari- genom uppkomst *av elektronspâr eller “trädformationer" minskas till ett minimum. Dylika spår eller trädformationer inverkar nämligen på isolermaterialets elektriska genomslagshâllfasthet, i det att denna minskar, ifall större eller talrikare trädformationer förekommer.No attempt shall be made here to provide an exhaustive clarification of the phenomenon that the electrical impact resistance the heat is improved to such an extent; but it is believed that the increase in volume coarse carbon black - compared to that usually used for fillers or dyes rewarding additives use the amount - significantly increases the diffusion of the electrons as they pass through the crosslinkable material, varying by the emergence * of electron traces or "tree formations" are reduced to a minimum. Such tracks or tree formations have an effect on the electrical impact strength of the insulating material, in that this decreases, if larger or more numerous tree formations occur.
Om dylik kimrök användes i mängder av upp till Ä0% av kimrök-polymer- materialblandningens totala vikt, medför detta icke någon minskning av det förnätade materialets resistivitet till under l x 1010 ohm-cm; större mängder har däremot en skadlig inverkan på det förnätade materialets isoleringsegenskaper. Företrädesvis skall halten av den grova kimröken uppgå till ca 20 - 30% av vikten av ifrågavarande två- komponentsblandning. Kolhalten i det bestrålade isolermaterialet är densamma som kolhalten i materialet före bestrålningen.If such carbon black is used in amounts of up to 00% of carbon black polymer the total weight of the material mixture, this does not lead to any reduction of the resistivity of the crosslinked material to less than 1 x 1010 ohm-cm; larger quantities, on the other hand, have a detrimental effect on the crosslinked the insulating properties of the material. Preferably, the content of it coarse carbon blacks amount to about 20 - 30% of the weight of the two component mixture. The carbon content of the irradiated insulation material is the same as the carbon content of the material before irradiation.
Ett ändamål med föreliggande uppfinning är att åstadkomma ett polymert isolermaterial som har genom bestrâlning bildade tvärbindningar ("bestrålningsförnätat" material) och som har en elektrisk genomslags- hållfasthet avsevärt överstigande den hos kända, på liknande sätt be- strålningsförnätade isolermaterial.An object of the present invention is to provide one polymeric insulating material having crosslinked formed by irradiation ("radiation crosslinked" material) and having an electrical breakdown strength significantly exceeding that of known, similarly determined radiation crosslinked insulation materials.
Ytterligare ett ändamål med uppfinningen är att åstadkomma en kabel för elkraftöverföring, varvid denna kabel har en ledare som är isolerad med ett eller flera skikt av ett bestrålningsnätat polymer- material och varvid den elektriska genomslagshållfastheten är bättre än den hos kända kablar med på liknande sätt isolerad ledare.A further object of the invention is to provide one cable for electric power transmission, this cable having a conductor that is insulated with one or more layers of an irradiated polymer material and whereby the electrical breakdown strength is better than that of known cables with similarly insulated conductors.
Ytterligare andra ändamål med uppfinningen och ytterligare fördelar av densamma kommer att framgå i samband med efterföljande beskrivning av fiïrcffll-rifçrlu utFör-irxpjff.fïnflrnffr-, vurvïd :zrlrntïrlïfíf- hiínvhzm; till bif. ritning. Denna visar ett tvärsnitt genom en elkabel, om- fattandexninst ett skikt av den bestrålade, förnätade polymerisoleringen enligt föreliggande uppfinning. 8001418-6 Den elkraft överförande kabeln 1 i rítningsfiguren har en enda, central ledare 2, som omges av två skikt 3, H. Ledaren 2 kan omfatta ett flertal trådar, såsom visas, eller också kan den vara en massiv ledare. Det bör även beaktas att uppfinningen lika väl äger tillämpning vid kablar med flera ledare i en och samma kabel, ehuru här endast en enledarkabel l visas i ritningen.Still other objects of the invention and further benefits of the same will emerge in connection with subsequent description of fiïrcffll-rifçrlu utFör-irxpjff.fïn fl rnffr-, vurvïd: zrlrntïrlïfíf- hiínvhzm; to bif. drawing. This shows a cross section through an electrical cable, at least one layer of the irradiated, crosslinked polymer insulation according to the present invention. 8001418-6 The electric power transmission cable 1 in the drawing figure has a single, central conductor 2, surrounded by two layers 3, H. The conductor 2 may comprise a plurality of threads, as shown, or it may be a massive leader. It should also be noted that the invention is the same well applies to cables with several conductors in one and the same cable, although here only a single conductor cable l is shown in the drawing.
Minst ett av skikten 3, H är ett skikt av isolerande polymerma- terial av den enligt uppfinningen avsedda kvalitén, dvs. skiktet be- står av ett polymermaterial, som är förnätat genom bestålning, har en resistivitet av minst l x 1010 ohm-cm och innehåller kimrök, varvid kimröken har en partikelstorlek i intervallet 200 - 500 nm och varvid kimrökens viktmängd utgör 10-H0% av den totala viktmängden polymermaterial + kimrök. Företrädesvis användes kimrök av det slag, som kommersiellt betecknas som kimrök av MT-typ (medium thermal type).At least one of the layers 3, H is a layer of insulating polymer material. material of the quality intended according to the invention, i.e. layer be- stands of a polymeric material, which is crosslinked by irradiation, has a resistivity of at least 1 x 1010 ohm-cm and containing carbon black, wherein the carbon black has a particle size in the range 200 - 500 nm and wherein the weight amount of the carbon black is 10-H0% of the total weight amount polymer material + carbon black. Preferably, carbon black of the kind used is used. which is commercially referred to as MT-type (thermal thermal type) carbon black.
Små mängder kimrök med en partikelstorlek utanför området 200 - 500 nm kan likaledes ingå i skiktet, men det bör beaktas att mängden av den kimrök, som har en partikelstorlek understigande 200 nm, bör vara mindre än en sådan mängd som skulle medföra att resistiviteten minskas till under l x 1010 ohm-cm. Polymermaterialet kan vara vilket som helst känt material, som kan förnätas genom strålningsbehandling.Small amounts of carbon black with a particle size outside the range 200 - 500 nm may likewise be included in the layer, but it should be borne in mind that the amount of the carbon black having a particle size of less than 200 nm should be less than such an amount that would cause the resistivity reduced to below l x 1010 ohm-cm. The polymeric material can be any any known material, which can be crosslinked by radiation treatment.
Det kan sålunda exempelvis vara polyeten, polyvinylklorid, silikongummi, styrenbutadiengummi, etensampolymerer inkl. etenpropengummi, etenter- polymerer, blandningar av sådana polymerer etc.Thus it may be, for example, polyethylene, polyvinyl chloride, silicone rubber, styrene butadiene rubber, ethylene copolymers incl. ethylene propylene rubber, polymers, mixtures of such polymers, etc.
Kfimükeningår företrädesvis i en mängd av 20-30 viktprocent, helst ca 28 viktproeent, och isoleringsskiktets :resistivitet skall före- trädesvis vara minst l x 1015 ohm-cm.K fi mükening is preferably in an amount of 20-30% by weight, preferably about 28% by weight, and the resistivity of the insulation layer shall be preferably be at least 1 x 1015 ohm-cm.
Enligt en föredragen utföringsform av kabeln enligt uppfinningen är båda skikten 3 och 4 tillverkade av det bestrålade, förnätade polymermaterialet enligt uppfinningen. Exempelvis kan skiktet 3 bestå av lågdensitetspolyeten och kan skiktet H bestå av antingen högdensi- tetspolyeten eller polyeten med intermediär densitet. Vart och ett av dessa båda skikt innehåller vid denna utföringsform kimrök i ovan eller nedan angiven mängd och med ovan eller nedan angiven partikel- storlek.According to a preferred embodiment of the cable according to the invention both layers 3 and 4 are made of the irradiated, crosslinked the polymeric material according to the invention. For example, layer 3 may remain of low density polyethylene and the layer H may consist of either high density polyethylene or intermediate density polyethylene. Each of these two layers in this embodiment contain carbon black in the above or the amount indicated below and with the particles indicated above or below size.
Emellertid kan också det ena av de båda skikten 3, H bestå av ett annorlunda material, eller också kan ev. det ena av de båda skikten 5, Ä vara utelämnat - i vilket fall det kvarvarande skiktet består av det besträlade förnätade polymermaterialet enligt uppfin- ningen. 8001418-6 Benämningarna "lâgdensitetspolyeten",'polyeten med intermediär densitet" och "högdensitetspolyeten" användes här i enligthet med ASTM-standard för typ I, typ II och typ III, nämligen enligt föl- jande: Lågdensitetspolyeten har en densitet av ca 0,910 - ca 0,925 g/cmš; polyeten med intermediär densitet har en densitet av ca 0,926 - ca O,9H0 g/cvš; högdensitetspolyeten har en densitet av ca o,9u1 - 0,965 glam? Alternativt kan skiktet 3 vara ett halvledande skikt, t.ex. ett skikt av bestrålningsförnätat polymermaterial med resistivitet av l x 105-ohm-cm eller lägre, som skall kunna tillgodose konvention- ella krav betr. spänningsfördelning, varvid i så fall skiktet Ä bör vara ett skikt av det bestrålningsförnätade polymermaterialet enligt föreliggande uppfinning.However, one of the two layers 3, H may also consist of a different material, or can possibly. one of the two layers 5, Ä be omitted - in which case the remaining layer consists of the irradiated crosslinked polymeric material according to the invention ningen. 8001418-6 The terms "low density polyethylene", "polyethylene with intermediate density "and" high density polyethylene "are used herein in accordance with ASTM standard for type I, type II and type III, namely according to : The low density polyethylene has a density of about 0.910 - about 0.925 g / cmš; intermediate density polyethylene has a density of approx 0.926 - about 0.9H0 g / cv; the high density polyethylene has a density of approx o, 9u1 - 0.965 glam? Alternatively, the layer 3 may be a semiconducting layer, e.g. a layer of radiation crosslinked polymeric material with resistivity of 1 x 105-ohm-cm or less, which must be able to meet the ella requirements betr. voltage distribution, in which case the layer Ä should be a layer of the radiation crosslinked polymeric material according to present invention.
Givetvis kan kabeln l ha ytterligare skikt av de olika materialen, antingen mellan ett skikt 4 av isolermaterial enligt uppfinningen och ledaren 2 eller också utanför skiktet H, t.ex. ett armerings- eller skärmningsskikt. M.a.o. kan isolermaterialet enligt uppfinningen an- vändas för elektrisk isolering överallt där det behövs.Of course, the cable l may have additional layers of the different materials, either between a layer 4 of insulating material according to the invention and the conductor 2 or also outside the layer H, e.g. a reinforcement or shielding layer. M.a.o. the insulating material according to the invention can be used used for electrical insulation wherever needed.
Isolermaterialet enligt uppfinningen kan framställas i enlighet med kända förfaranden, och det kan förutom kimröken och polymerma- terialet innehålla ytterligare material, som konventionellt användes vid tillverkning av medelst bestrålning förnätade polymera isolerma- terial. Vid tillverkning av en elkabel, t.ex. kabeln l, strängsprutas ett eller flera skikt av det iordningställda polymermaterialet separat eller samtidigt över ledaren 2 på konventionellt sätt; därefter under- kastas materialskiktet eller -skikten bestrålning i lämplig dos och såsom behövs för åstadkommande av tvärbindningarna - såsom detta be- skrives i ovannämnda patentskrifter.The insulating material according to the invention can be prepared according to with known methods, and in addition to carbon black and polymer material contain additional materials conventionally used in the manufacture of irradiated polymeric insulating materials terial. When manufacturing an electric cable, e.g. cable l, extruded one or more layers of the prepared polymeric material separately or simultaneously over the conductor 2 in a conventional manner; then under- the material layer or layers are irradiated at the appropriate dose and as needed to provide the crosslinks - as provided written in the above-mentioned patents.
Ehuru föredragna utföringsformer av uppfinningen har beskrivits och visats torde det vara uppenbart för fackmannen, att mångahanda modifikationer kan göras utan att uppfinningens principer frângâs.Although preferred embodiments of the invention have been described and it has been shown that it will be obvious to the person skilled in the art that in many ways modifications may be made without departing from the principles of the invention.
Claims (10)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US1474479A | 1979-02-23 | 1979-02-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE8001418L SE8001418L (en) | 1980-08-24 |
| SE445789B true SE445789B (en) | 1986-07-14 |
Family
ID=21767433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE8001418A SE445789B (en) | 1979-02-23 | 1980-02-22 | FOR ELECTRIC INSULATION PROPOSED POLYMER MATERIAL WITH CIRCUIT BINDING WITH CABLE ISOLATED WITH THIS MATERIAL |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS55149348A (en) |
| AR (1) | AR222689A1 (en) |
| BR (1) | BR8001105A (en) |
| DE (1) | DE3001647A1 (en) |
| ES (1) | ES489482A0 (en) |
| FR (1) | FR2449953A1 (en) |
| GB (1) | GB2043078B (en) |
| IT (1) | IT1140689B (en) |
| SE (1) | SE445789B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5034719A (en) * | 1989-04-04 | 1991-07-23 | Prestolite Wire Corporation | Radio frequency interference suppression ignition cable having a semiconductive polyolefin conductive core |
| CN101851366B (en) * | 2010-04-29 | 2013-03-20 | 上海科悦高分子材料有限公司 | Strippable shielding material for 35KV-level middle-high voltage cross-linked cable insulating layer as well as preparation method and application thereof |
| JP7210433B2 (en) * | 2017-04-18 | 2023-01-23 | 信越化学工業株式会社 | High dielectric insulating silicone rubber composition and electric field relaxation layer |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2146928B1 (en) * | 1971-07-26 | 1977-01-28 | Silec Liaisons Elec | |
| JPS5610352B2 (en) * | 1972-12-13 | 1981-03-07 | ||
| JPS51133795A (en) * | 1975-05-15 | 1976-11-19 | Furukawa Electric Co Ltd:The | Semi-conductive thin sheet |
| US4188276A (en) * | 1975-08-04 | 1980-02-12 | Raychem Corporation | Voltage stable positive temperature coefficient of resistance crosslinked compositions |
-
1980
- 1980-01-17 DE DE19803001647 patent/DE3001647A1/en not_active Withdrawn
- 1980-02-04 GB GB8003632A patent/GB2043078B/en not_active Expired
- 1980-02-15 FR FR8003420A patent/FR2449953A1/en active Granted
- 1980-02-21 JP JP1978680A patent/JPS55149348A/en active Pending
- 1980-02-21 AR AR280039A patent/AR222689A1/en active
- 1980-02-22 IT IT20098/80A patent/IT1140689B/en active
- 1980-02-22 BR BR8001105A patent/BR8001105A/en not_active IP Right Cessation
- 1980-02-22 SE SE8001418A patent/SE445789B/en unknown
- 1980-02-22 ES ES489482A patent/ES489482A0/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| SE8001418L (en) | 1980-08-24 |
| ES8103459A1 (en) | 1981-02-16 |
| DE3001647A1 (en) | 1980-09-04 |
| FR2449953B1 (en) | 1984-01-13 |
| IT8020098A0 (en) | 1980-02-22 |
| AR222689A1 (en) | 1981-06-15 |
| FR2449953A1 (en) | 1980-09-19 |
| GB2043078B (en) | 1982-12-08 |
| IT1140689B (en) | 1986-10-01 |
| ES489482A0 (en) | 1981-02-16 |
| GB2043078A (en) | 1980-10-01 |
| JPS55149348A (en) | 1980-11-20 |
| BR8001105A (en) | 1980-10-29 |
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