DE633815C - Neutral high-voltage cables with main conductors stranded within a lead sheath - Google Patents
Neutral high-voltage cables with main conductors stranded within a lead sheathInfo
- Publication number
- DE633815C DE633815C DES105206D DES0105206D DE633815C DE 633815 C DE633815 C DE 633815C DE S105206 D DES105206 D DE S105206D DE S0105206 D DES0105206 D DE S0105206D DE 633815 C DE633815 C DE 633815C
- Authority
- DE
- Germany
- Prior art keywords
- neutral
- lead sheath
- lead
- voltage cables
- main conductors
- 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.)
- Expired
Links
- 239000004020 conductor Substances 0.000 title claims description 21
- 230000007935 neutral effect Effects 0.000 title claims description 15
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 240000000491 Corchorus aestuans Species 0.000 description 1
- 235000011777 Corchorus aestuans Nutrition 0.000 description 1
- 235000010862 Corchorus capsularis Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
Landscapes
- Insulated Conductors (AREA)
Description
6S38156S3815
Für. elektrische Niederspännungsverteilungs netze, insbesondere vernaschte Wechselstromnetze, hat man besondere Nulleiterkabel entwickelt, die neben den Phasenleitern gleichzeitig einen Nulleiter enthalten. Der Querschnitt des Nulleiters beträgt bei den üblichen Kabeln etwa die Hälfte bis zum vollen. Wert des Phasenleiterquerschnittes. Sämtliche vier Leiter, d.h. Nulleiter und die drei Einphasenleiter, sind miteinander verseilt und durch einen gemeinsamen Bleimantel umgeben. Der Bleimantel ist dann in der Regel durch eine Bandeisenbewehrung gegen mechanische Einwirkungen geschützt.For. electrical low voltage distribution networks, especially networked AC networks, special neutral cables have been developed, which in addition to the phase conductors also contain a neutral conductor. The cross section of the neutral conductor is about half to the full with conventional cables. value of the phase conductor cross-section. All four conductors, i.e. the neutral conductor and the three single-phase conductors, are stranded together and surrounded by a common lead sheath. Of the Lead sheath is then usually reinforced against mechanical impacts by means of iron band reinforcement protected.
Gemäß der Erfindung wird ein Nulleiterstarkstromkabel besonders einfacher und auch billigerer Bauart dadurch geschaffen, daß der Nulleiter durch eine über dem Bleimantel liegende, aus Kupferbändern bestehende Panzerung gebildet ist, wobei sein Gesamtleitungsquerschnitt in der üblichen Weise "im Verhältnis zum Leitungsquerschnitt der Phasenleiter gewählt ist.According to the invention, a neutral power cable becomes particularly simpler and also Cheaper design created by the fact that the neutral conductor through a lead sheath lying armor consisting of copper strips is formed, with its overall conductor cross-section in the usual way "in relation to the line cross-section of the phase conductors is chosen.
In der Zeichnung ist ein Nulleiterkabel, das gemäß der Erfindung gestaltet ist, dargestellt. Die Phasenleiter 1, 2 und 3 sind als Litzenleiter aufgebaut. Sie sind durch die geschichtete Isolation 5 bedeckt und unter Hinzufügung des Beilaufes 6 miteinander verseilt. Über der Verseilung befindet sich die geschichtete Isolation 7 und der Bleimantel 8. Der Nulleiter ist als Panzerung 9 ausgebildet. Die Panzerung besteht aus Kupferbändern, die, um ein Oxydieren zu "Verhindern, verbleit sind. Über die Panzerung- kann noch eine geschichtete Schutzschicht 10 aus geteerter Jute o. dgl. aufgebracht werden.In the drawing, a neutral cable, which is designed according to the invention, is shown. The phase conductors 1, 2 and 3 are designed as stranded conductors. You're layered through Insulation 5 covered and stranded together with the addition of the extension 6. The layered insulation 7 and the lead sheath 8 are located above the stranding. The neutral conductor is designed as armor 9. The armor is made of copper strips, which are leaded in order to prevent them from oxidizing Layered protective layer 10 made of tarred jute or the like. Be applied.
Das in der Zeichnung dargestellte Kabel zeichnet sich dadurch atis, daß es infolge des Wegfalles eines innerhalb des Bleimantels liegenden, besonderen Nulleiters einen erheblich geringeren Außendurchmesser besitzt. Wählt man den Gesamtquerschnitt der Panzerung so groß, wie man bisher den Q.uer- +5- schnitt des Nulleiters wählte, so erhält man eine Panzerung, die den Bleimantel des Kabels völlig ausreichend gegen mechanische Einwirkungen schützt. Es ist an sich denkbar, neben dem Kupfermantel noch eine Stahldrahtpanzerung oder eine ähnliche besonders widerstandsfähige Panzerung aufzubringen. Erforderlich ist jedoch eine zusätzliche Panzerung nicht.The cable shown in the drawing is characterized atis that it as a result the omission of a special neutral conductor located within the lead jacket is a considerable factor has a smaller outer diameter. Choosing the total cross-section of the armor as large as the Q.uer + 5-cut of the neutral conductor has been chosen so far armoring that completely protects the lead sheath of the cable against mechanical influences protects. It is conceivable in itself to have steel wire armor in addition to the copper jacket or to apply a similar particularly resistant armor. However, additional armor is required not.
Die Verringerung des' Kabeldurchmessers bedeutet gleichzeitig eine Verringerung der Herstellungskosten, da erfahrungsgemäß die Herstellungskosten eines Kabels annähernd seinem Gewicht proportional sind. Gegenüber der normalen Kabelbauart, bei der der Nullleiter mit den Dreiphasenleitern verseilt ist, ist ferner die Wärmeableitung wesentlich verbessert, da der volle Umfang für die Wärmeableitung zur Verfügung steht.The reduction of the 'cable diameter means at the same time a reduction in manufacturing costs, since experience has shown that the Manufacturing costs of a cable are approximately proportional to its weight. Opposite to the normal cable design in which the neutral conductor is stranded with the three-phase conductors, the heat dissipation is also significantly improved, since the full scope for heat dissipation is available.
Bei den bekannten Bleimantelkabeln hat man in letzter Zeit Verbindungen vorgesehen, bei denen für eine Unterbrechung des Bleimantels und auch der Panzerung besonders Sorge getragen wird, um Bleimantelströme zu verhindern. Bei dem neuen Kabel wird man die Verbindung der Kabelenden so durchführen, daß zwar die Bleimantel der verbundenen Kabelenden voneinander isoliert, die Kupferbandarmierungen jedoch leitend miteinander verbunden sind.In the case of the known lead-sheathed cables, connections have recently been provided, with those for an interruption of the lead jacket and also the armor especially Care is taken to prevent lead jacket currents. With the new cable you will carry out the connection of the cable ends so that the lead sheath of the connected Cable ends isolated from each other, but the copper armouring is conductive with each other are connected.
An Stelle der Kupferbandpanzerung könnte man auch eine Panzerung aus -einem anderen gut leitenden Material, etwa Aluminium, verwenden, allerdings wächst dann das Gewicht der Armierung stark an.Instead of the copper band armor one could also armor from another Use a highly conductive material, such as aluminum, but the weight then increases the reinforcement strongly.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES105206D DE633815C (en) | Neutral high-voltage cables with main conductors stranded within a lead sheath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES105206D DE633815C (en) | Neutral high-voltage cables with main conductors stranded within a lead sheath |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE633815C true DE633815C (en) | 1936-08-07 |
Family
ID=7526391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DES105206D Expired DE633815C (en) | Neutral high-voltage cables with main conductors stranded within a lead sheath |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE633815C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1116759B (en) * | 1955-09-26 | 1961-11-09 | Siemens Ag | Plastic-insulated electrical power cable |
-
0
- DE DES105206D patent/DE633815C/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1116759B (en) * | 1955-09-26 | 1961-11-09 | Siemens Ag | Plastic-insulated electrical power cable |
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