NO163310B - ISOLATED CABLE. - Google Patents
ISOLATED CABLE. Download PDFInfo
- Publication number
- NO163310B NO163310B NO872635A NO872635A NO163310B NO 163310 B NO163310 B NO 163310B NO 872635 A NO872635 A NO 872635A NO 872635 A NO872635 A NO 872635A NO 163310 B NO163310 B NO 163310B
- Authority
- NO
- Norway
- Prior art keywords
- sheath
- roughened
- cable
- aluminum
- installation
- Prior art date
Links
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 28
- 229910052782 aluminium Inorganic materials 0.000 claims description 28
- 238000009434 installation Methods 0.000 claims description 16
- 239000004020 conductor Substances 0.000 claims description 9
- 238000007788 roughening Methods 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 238000007790 scraping Methods 0.000 claims description 2
- 230000001680 brushing effect Effects 0.000 claims 1
- 239000006223 plastic coating Substances 0.000 description 5
- 230000037303 wrinkles Effects 0.000 description 5
- 238000005452 bending Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/20—Metal tubes, e.g. lead sheaths
- H01B7/205—Metal tubes, e.g. lead sheaths composed of aluminium
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
- H01B13/26—Sheathing; Armouring; Screening; Applying other protective layers by winding, braiding or longitudinal lapping
- H01B13/2613—Sheathing; Armouring; Screening; Applying other protective layers by winding, braiding or longitudinal lapping by longitudinal lapping
- H01B13/2686—Pretreatment
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/1875—Multi-layer sheaths
- H01B7/188—Inter-layer adherence promoting means
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Insulated Conductors (AREA)
- Communication Cables (AREA)
- Manufacturing Of Electric Cables (AREA)
Description
Oppfinnelsen vedrører en installasjonskabel for fast opplegg, omfattende en kjernedel med fortrinnsvis isolert<!>ledere som i tillegg er innleiret i et isolasjonsskikt, hvilken kjernedel er omgitt av en mantel av aluminium, som er beskyttet av en ytterkappe av et egnet plastmateriale. The invention relates to an installation cable for fixed installation, comprising a core part with preferably insulated<!>conductors which are additionally embedded in an insulation layer, which core part is surrounded by a sheath of aluminium, which is protected by an outer sheath of a suitable plastic material.
Denne type installasjonskabel benyttes i stor utstrekning for This type of installation cable is widely used for
faste opplegg, såvel innendørs som utendørs. Kabelen benyttes i det vesentlige til åpen forlegning, dvs. hvor de elektriske ledninger ikke er lagt skjult i veggen. Kablene strekkes herved stort sett i rette baner, men må mange steder bøyes rundt hjør- fixed arrangements, both indoors and outdoors. The cable is mainly used for open laying, i.e. where the electrical cables are not hidden in the wall. In this way, the cables are mostly stretched in straight paths, but in many places must be bent around corners.
ner eller føres i skrå vinkler. Dette betyr at installasjon-skablene skal kunne ha tilstrekkelig stivhet til å kunne føres i rette linjer over lengre strekninger, samtidig som de må down or guided at oblique angles. This means that the installation cables must be able to have sufficient rigidity to be able to be routed in straight lines over long stretches, while at the same time they must
kunne bøyes i mange forskjellige vinkler uten at deres utseende derved blir rynket eller gir et ufordelaktig inntrykk på annen måte. For montøren er det også viktig at det skal være lett å foreta avmantling, dvs. fjerning av ytterkappen og også den innenforiiggende aluminiumsmantel. could be bent at many different angles without their appearance thereby being wrinkled or giving an unfavorable impression in any other way. For the fitter, it is also important that it should be easy to carry out stripping, i.e. removing the outer sheath and also the inner aluminum sheath.
Det har vist seg vanskelig i praksis å tilfredsstille alle It has proven difficult in practice to satisfy everyone
disse ovennevnte krav. Således har det ved bruk av vanlige aluminiumsmantler av tynt båndmateriale som er brettet eller foldet rundt den indre leder-kjernedel, ved bøyning av kabelen rundt et hjørne vært tendens til å oppstå rynker i hjørneområ- these above requirements. Thus, when using ordinary aluminum sheaths made of thin band material that is folded or folded around the inner conductor core part, when bending the cable around a corner, there has been a tendency for wrinkles to occur in the corner area.
det, noe som er estetisk utilfredsstillende. Dette problem fremtrer ekstra tydelig hvis kabelen har vært bøyet i vinkel på feil sted og deretter må rettes ut, hvoretter rynkene i ytterkappen forblir synlige. Man har forsøkt å avhjelpe denne mangel ved å legge plastbelegg på aluminiumsbåndet, hvilke plastbelegg har gitt en sterkere koesjonskraft til ytterkappen, noe som har motvirket tendensen til rynkedannelse og det har således kunnet gjennomføres glatte vinkelbøyninger og også feilbøyninger har kunnet rettes ut uten at det oppstår rynkede steder. Denne "lettere håndterlighet" for montøren under selve leggingen av kabelen har vært ansett som en klar fordel, ulempen er imidler- that, which is aesthetically unsatisfactory. This problem is particularly apparent if the cable has been bent at an angle in the wrong place and then has to be straightened, after which the wrinkles in the outer sheath remain visible. An attempt has been made to remedy this shortcoming by placing a plastic coating on the aluminum strip, which plastic coating has given a stronger cohesive force to the outer sheath, which has counteracted the tendency for wrinkles to form, and it has thus been possible to carry out smooth angular bends and also correct bends without them occurring wrinkled places. This "easier handling" for the fitter during the actual laying of the cable has been considered a clear advantage, the disadvantage is however
tid at plastbelegget på aluminiumsmantelen har medført at det har vært vanskelig å trekke av ytterkappen ved koblingsstedene, time that the plastic coating on the aluminum sheath has meant that it has been difficult to pull off the outer sheath at the connection points,
slik at oppslissing og større kraftutøvelse har vært nødvendig, samtidig som det har vært lett å beskadige kabelen i dette arbeidstrinn. Dette problem foreligger ikke ved bruk av helt blanke aluminiumsmantler. Montøren har således hatt valget mellom en lett avmantling når han skal foreta koblingene, samtidig som han må være forsiktig med tilbøyning av selve kabelen for so that splitting and a greater application of force has been necessary, while at the same time it has been easy to damage the cable in this work step. This problem does not exist when completely shiny aluminum sheaths are used. The fitter has thus had the choice between a light stripping when he has to make the connections, while at the same time he has to be careful about bending the cable itself for
ikke å få misdannelser, eller han kan benytte en kabel med lett legging av ledningen samtidig som han må ta avmantlingsproble-mene med på kjøpet. not to get deformities, or he can use a cable with easy laying of the wire while at the same time having to take the stripping problems into account.
Det har derfor i lang tid vært et ønske å komme frem til en kombinasjon av fordelene ved de to installasjonskabeltypene samtidig som ulempene ved dem helt unngås. There has therefore been a desire for a long time to arrive at a combination of the advantages of the two types of installation cable while at the same time avoiding their disadvantages completely.
Dette er oppnådd ved en installasjonskabel av den innlednings-vis nevnte art, som er kjennetegnet ved det som fremgår av kravene. Oppfinnelsen vedrører også en fremgangsmåte til fremstilling av en slik installasjonskabel samt et aluminiumsbånd for bruk ved fremstilling av installasjonskabler. This has been achieved by an installation cable of the type mentioned at the outset, which is characterized by what appears in the requirements. The invention also relates to a method for producing such an installation cable as well as an aluminum band for use in the production of installation cables.
Man har overeraskende funnet at man ved å rive opp aluminiums-båndets blanke overflater f.eks. med en fin stålbørste, ved sliping, oppskraping eller oppruing på en eller annen egnet måte får tilført så stor friksjonskraft til aluminiumbåndets overflate i kontaktområdet til kabelens ytterkappe at forbin-delsen mellom de to lag bibeholdes i så stor grad at rynke- og skrukkedannelsen på knekkstedene i vesentlig grad unngås og man oppnår en kvalitet for installasjonskabelens overflateutseende, også ved bøyningsdelen, som ligger opp mot det som oppnås ved aluminiumsmantler som er belagt med plastbelegg. Samtidig bibeholdes en lett avmantling av kabelen. Det antas at denne friksjon tilveiebringes fordi alle de små riper eller kratere som er dannet under oppruingen blir fylt med plastmateriale ved ekstruderingsprosessen for ytterkappen. Den lille friksjon som oppstår på denne måte gjør at kappen vil gi aluminiumsbåndet den nødvendige støtte, slik at dette ikke bulker ut og på den måten gir synlige rynker på overflaten a<y> kappen. It has been surprisingly found that by tearing up the shiny surfaces of the aluminum strip, e.g. with a fine wire brush, by grinding, scraping or roughening in some suitable way, such a large frictional force is added to the surface of the aluminum strip in the contact area of the cable's outer sheath that the connection between the two layers is maintained to such an extent that wrinkles and creases form at the kinks to a significant extent is avoided and a quality is achieved for the surface appearance of the installation cable, also at the bending part, which is comparable to that achieved with aluminum sheaths that are covered with a plastic coating. At the same time, easy stripping of the cable is maintained. It is believed that this friction is provided because all the small scratches or craters formed during roughening are filled with plastic material by the extrusion process for the outer shell. The small friction that occurs in this way means that the sheath will give the aluminum strip the necessary support, so that it does not dent and thus give visible wrinkles on the surface a<y> the sheath.
Fordelaktig kan mantelen opprues på begge sider og oppruingen foretas hensiktsmessig i lengderetning, og derved i stripeform. Aluminiumsbåndet kan opprues på minst én side før det bringes frem til produksjonslinjen for installasjonskabelen, slik at aluminiumsbåndet for dannelse av mantelen foreligger i ruller, i allerede oppruet tilstand. Et annet alternativ vil være, ved tilførselen av aluminiumsbåndet til kabelproduksjonslinjen å la dette gli over eller mellom stålbørster som frembringer den ønskede ru flate. Advantageously, the mantle can be roughened on both sides and the roughening is carried out appropriately in the longitudinal direction, and thereby in strip form. The aluminum strip can be roughened on at least one side before it is brought to the production line for the installation cable, so that the aluminum strip for forming the sheath is available in rolls, in an already roughened state. Another alternative would be, when supplying the aluminum strip to the cable production line, to let it slide over or between steel brushes which produce the desired rough surface.
En slik oppruing av aluminiumsbåndet vil således ikke utgjøre noen vesentlig ekstra omkostning i forhold til bruken av vanlige blanke aluminiumsbånd, samtidig som båndet vil være rime-ligere enn aluminiumsbånd påført plastbelegg. Such a roughening of the aluminum strip will thus not constitute any significant additional cost in relation to the use of ordinary shiny aluminum strips, while at the same time the strip will be smoother than aluminum strips with a plastic coating.
Fremstillingen av installasjonskabler i henhold til oppfinnelsen foregår således i prinsippet på kjent måte, idet det ønskede antall ledere, fortrinnsvis isolerte ledere, eventuelt også med en uisolert jordleder, føres sammen og innleires i plast i et ekstruderingshode, hvoretter et aluminiumsbånd føres tangensielt inn mot ledertråden som utgjør kjernedelen. I den neste stasjons børdles aluminiumsbåndet, som enten kan være oppruet på forhånd eller som på sin vei inn mot kjernedelen føres over oppruings-stålbørster, inn rundt kjernedelen slik at det kun forblir åpen en liten spalt mellom sidekantene av båndet. Lederne som nå er omgitt av aluminiumsmantelen føres vide-re gjennom en ekstruderingsstasjon hvor ytterkappen påføres og den ferdige kabel vikles opp på egnet måte. The production of installation cables according to the invention thus takes place in principle in a known manner, with the desired number of conductors, preferably insulated conductors, possibly also with an uninsulated earth conductor, brought together and embedded in plastic in an extrusion head, after which an aluminum strip is fed tangentially towards the conductor wire which forms the core part. In the next station, the aluminum strip, which can either be roughened in advance or which on its way towards the core part is passed over roughening steel brushes, is wound around the core part so that only a small gap remains open between the side edges of the strip. The conductors, which are now surrounded by the aluminum jacket, are passed through an extrusion station where the outer sheath is applied and the finished cable is wound up in a suitable manner.
Mange modifikasjoner vil være mulige innenfor oppfinnelsens ramme, idet oppruingen kan foregå på forskjellige måter og det vil også være tenkelig at aluminiumsbåndet påføres på annen måte. Det vesentlige er kun at det benyttes et aluminiumsbånd, som med egnet behandling har vært utsatt for en oppruing. Many modifications will be possible within the scope of the invention, as the roughening can take place in different ways and it will also be conceivable that the aluminum strip is applied in a different way. The only important thing is that an aluminum strip is used, which with suitable treatment has been exposed to a roughening.
Claims (6)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO872635A NO163310C (en) | 1987-06-24 | 1987-06-24 | ISOLATED CABLE. |
SE8802100A SE8802100L (en) | 1987-06-24 | 1988-06-06 | ISOLATED CABLE |
DE3819343A DE3819343A1 (en) | 1987-06-24 | 1988-06-07 | Insulated cable |
DK314888A DK314888A (en) | 1987-06-24 | 1988-06-09 | INSTALLATION CABLE |
FI882994A FI882994A (en) | 1987-06-24 | 1988-06-22 | INSTALLATIONSKABEL. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO872635A NO163310C (en) | 1987-06-24 | 1987-06-24 | ISOLATED CABLE. |
Publications (4)
Publication Number | Publication Date |
---|---|
NO872635D0 NO872635D0 (en) | 1987-06-24 |
NO872635L NO872635L (en) | 1988-12-27 |
NO163310B true NO163310B (en) | 1990-01-22 |
NO163310C NO163310C (en) | 1990-05-02 |
Family
ID=19890048
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO872635A NO163310C (en) | 1987-06-24 | 1987-06-24 | ISOLATED CABLE. |
Country Status (5)
Country | Link |
---|---|
DE (1) | DE3819343A1 (en) |
DK (1) | DK314888A (en) |
FI (1) | FI882994A (en) |
NO (1) | NO163310C (en) |
SE (1) | SE8802100L (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19646553A1 (en) * | 1996-10-29 | 1998-04-30 | Delta Umwelt Technik Gmbh | Catalytic wet oxidation of organic or inorganic contaminants |
-
1987
- 1987-06-24 NO NO872635A patent/NO163310C/en unknown
-
1988
- 1988-06-06 SE SE8802100A patent/SE8802100L/en not_active Application Discontinuation
- 1988-06-07 DE DE3819343A patent/DE3819343A1/en not_active Withdrawn
- 1988-06-09 DK DK314888A patent/DK314888A/en not_active Application Discontinuation
- 1988-06-22 FI FI882994A patent/FI882994A/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
SE8802100D0 (en) | 1988-06-06 |
DK314888D0 (en) | 1988-06-09 |
FI882994A (en) | 1988-12-25 |
NO872635L (en) | 1988-12-27 |
NO872635D0 (en) | 1987-06-24 |
SE8802100L (en) | 1988-12-25 |
DK314888A (en) | 1988-12-25 |
FI882994A0 (en) | 1988-06-22 |
NO163310C (en) | 1990-05-02 |
DE3819343A1 (en) | 1989-01-05 |
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