DE621516C - Flexible power supply line for portable power consumers - Google Patents
Flexible power supply line for portable power consumersInfo
- Publication number
- DE621516C DE621516C DENDAT621516D DE621516DD DE621516C DE 621516 C DE621516 C DE 621516C DE NDAT621516 D DENDAT621516 D DE NDAT621516D DE 621516D D DE621516D D DE 621516DD DE 621516 C DE621516 C DE 621516C
- Authority
- DE
- Germany
- Prior art keywords
- supply line
- power supply
- current
- conductor
- lines
- 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
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
- H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
- H01B7/041—Flexible cables, conductors, or cords, e.g. trailing cables attached to mobile objects, e.g. portable tools, elevators, mining equipment, hoisting cables
Landscapes
- Insulated Conductors (AREA)
Description
, Es sind biegsame Stromzuführungsleitungen für transportable Stromverbraucher bekannt, die außer den stromführenden Leitungen einen weiteren Leiter aufweisen, der als Erdungsleiter ausgebildet ist. Es ist bekannt, diesen Erdungsleiter aus weniger dehnbarem Material als die übrigen stromführenden Leitungen herzustellen oder auch als Feder auszubilden. , There are known flexible power supply lines for portable power consumers, which apart from the current-carrying lines one have another conductor, which is designed as a grounding conductor. It is known this Earthing conductor made of less elastic material than the other current-carrying lines manufacture or train as a spring.
Bei der Vierwendung solcher Kabel können Schädigungen des Bedienungspersonals dadurch eintreten, daß der Erdungsleiter früher bricht als eine der stromführenden Leitungen, so daß die Wirkung der Erdung dadurch hinfällig wird und die Teile oder Geräte, deren Sicherheit auf der Erdung beruht, besonders gefahrbringend werden.When turning such cables, this can damage the operating personnel the earthing conductor breaks earlier than one of the current-carrying lines, so that the effect of the earthing becomes obsolete and the parts or devices, whose safety is based on earthing can be particularly dangerous.
Die Erfindung vermeidet diese Nachteile durch eine Ausgestaltung aller Leiter, derart, daß erfindungsgemäß der Erdungsleifer eime größere Widerstandsfestigkeit gegen wiederholte Biegungsbeanspruchungen hat als die übrigen stromführenden Leitungen, so daß diese bei derartigen Biegungsbeanspruchungen vor dem Erdungsleiter zu Bruch gehen, wobei es wesentlich ist, daß alle Leiter, einschließlich des Erdungsleiters, jeweils den gleichen Querschnitt besitzen, so daß keine oder nur sehr geringe Unterschiede hinsichtlieh des elektrischen Widerstandswertes der Leitungen bestehen.The invention avoids these disadvantages by designing all conductors in such a way that according to the invention the earthing conductor eime greater resistance to has repeated bending stresses than the rest of the current-carrying lines, so that these break in front of the earthing conductor under such bending stresses, it is essential that all conductors, including the grounding conductor, each have the have the same cross-section, so that no or only very small differences in terms of the electrical resistance of the cables.
Erreicht wird dies beispielsweise dadurch, daß erfindungsgemäß der als Litzenleiter ausgebildete Erdungsleiter aus zahlreicheren und dünneren Drähten als die ebenfalls als Litzenleiter ausgebildeten stromführenden Leitungen besteht. Die angestrebte Wirkung kann auch herbeigeführt werden, wenn man die Steigung der Zwirnung des als Erdungsleiter verwendeten Litzenleiters geringer als die der für die stromführenden Leitungen verwendeten Litzenleiter wählt.This is achieved, for example, by the fact that, according to the invention, the one designed as a stranded conductor Earthing conductors made of more numerous and thinner wires than those also as stranded conductors trained current-carrying lines consists. The desired effect can also be brought about by considering the slope of the twist of the used as a grounding conductor Less stranded wire than the stranded wire used for the current-carrying lines chooses.
In Abb. ι der Zeichnung ist der Quer-' schnitt eines Kabels als Ausführungsbeispiel dargestellt. Die Abb. 2 zeigt eine Ansicht desselben Kabels, das die Verbindung eines transportablen. Stromverbrauchers mit dem Netz und seiner Umhüllung mit Erde bezweckt. In Fig. Ι the drawing is the cross-section of a cable as an embodiment shown. Fig. 2 shows a view of the same cable that connects a transportable. Purpose of electricity consumer with the network and its sheathing with earth.
In der Zeichnung ist 10 der äußere Gummimantel des Kabels, 11 und 12 die stromführenden Leitungen und 13 der Erdungsleiter. In dem dargestellten Ausführungsbeispiel enthalten die Leitungen 11 und 12 etwa 20 starke Drähte 14, der Erdungsleiter 13 dagegen etwa dünnere Drähte 15. Die Gesamtquerschnitte der einzelnen Leiter sind unter sich gleich. '" - .In the drawing, 10 is the outer rubber jacket of the cable, 11 and 12 the live ones Leads and 13 of the grounding conductor. Included in the illustrated embodiment the lines 11 and 12 about 20 thick Wires 14, the grounding conductor 13, however, about thinner wires 15. The total cross-sections the individual leaders are the same among themselves. '"-.
Claims (3)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE621516T |
Publications (1)
Publication Number | Publication Date |
---|---|
DE621516C true DE621516C (en) | 1935-11-08 |
Family
ID=6577593
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT621516D Expired DE621516C (en) | Flexible power supply line for portable power consumers |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE621516C (en) |
-
0
- DE DENDAT621516D patent/DE621516C/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE1172333B (en) | Electrical cable with insulated power lines arranged within a common sheath and stranded with one another and shielded, twisted telecommunication wire groups for themselves | |
DE621516C (en) | Flexible power supply line for portable power consumers | |
DE1925781A1 (en) | Flameproof cable bushing for devices protected from explosion and firedamp | |
DE1110983B (en) | Electrode, especially for electrical corrosion protection of metal parts | |
DE649029C (en) | Flexible high-voltage cable with a small wire cross-section, especially for X-ray systems | |
DE653596C (en) | Three-core or multi-core cable-like line | |
AT133809B (en) | Encapsulated switchgear. | |
DE598398C (en) | Arrangement for the local reduction of additional losses in lead coats of single-core cables in places with unfavorable cooling conditions | |
DE928653C (en) | Flexible electrical cable | |
DE669122C (en) | Three-phase cable | |
DE822118C (en) | Flexible multi-core electrical power cable | |
AT112540B (en) | Cable for the interference-free transmission of a wide frequency range, in particular for music transmission. | |
AT239330B (en) | Electrical device, in particular telephone station | |
DE1896566U (en) | THREE- OR MULTI-WIRE INSULATED FLEXIBLE CABLE. | |
DE339747C (en) | Connection of electrical cables with concentric auxiliary conductor | |
DE2816532A1 (en) | Electrical plug connector system - enables any number of contact springs to be added later with wrapping pins and blade contacts | |
DE607996C (en) | Power cable made of individually leaded cores with metal straps laid lengthways in the cable for heat dissipation | |
DE482505C (en) | Electrical expansion cable | |
DE970374C (en) | Flexible multi-core high-voltage rubber cable | |
AT155287B (en) | Plug connection for measuring purposes. | |
DE1690175A1 (en) | Safe protective conductor in movable electrical connection cables | |
AT114376B (en) | Electric rubber-sheathed low-voltage line. | |
AT132650B (en) | Stretchable electrical conductor. | |
DE829750C (en) | Electric telecommunication cable with lines of different pressure sensitivity | |
DE499837C (en) | Strain relief device for the connector cables of electrical equipment |