DK159225B

DK159225B - ELECTRICAL CONNECTOR FOR HIGH POWER AND CONNECTION ARRANGEMENTS WITH SUCH A CONNECTOR

Info

Publication number: DK159225B
Application number: DK067283A
Authority: DK
Inventors: Martin Christopher Oakes
Original assignee: Y S Securities Ltd
Priority date: 1982-02-20
Filing date: 1983-02-16
Publication date: 1990-09-17
Also published as: MY8700674A; JPS58194265A; DK159225C; DK67283D0; GB2116381B; EP0087267A1; EP0087267B1; ATE24633T1; GB8304266D0; SG51287G; AU562777B2; GB2116381A; DE3368819D1; DK67283A; ZA831039B; AU1160283A

Abstract

An electrical connector suitable for use with voltages of 3.3kv and over comprises a housing (1) moulded from insulating material and defining a body section (2) and a stem (3) projecting therefrom. A tapered socket (4) opens into the body section from one end thereof and is designed to receive a bushing or plug (12). A conductive terminal (6) is moulded in situ in the housing and has a part exposed at the inner end of the socket (4) to make electrical contact with the plug (12). The terminal passes through the stem (3) of the housing to terminate in a conductor connection section (8) lying externally of the housing, to which section the end of a conductor (11) may be mechanically and electrically secured.

Description

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Opfindelsen omhandler elektriske forbindelsesorganer, som er udformede til at forbinde højspændingsledere f.eks. kabler og samleskinner til elektrisk udstyr såsom transformatorer, omkoblingsudstyr, motorer og 5 andre enheder. Ved højspænding forstås i sammenhæng med denne beskrivelse spændinger på 3,3 kV og derover.The invention relates to electrical connectors which are designed to connect high voltage conductors, e.g. cables and connectors for electrical equipment such as transformers, switchgear, motors and 5 other devices. In the context of this description, high voltage is meant voltages of 3.3 kV and above.

En række udformninger af forbindelsesorganer for højspænding eller primære distributionskabler er tidligere blevet foreslået. Papirisoleret kabel afsluttes 10 sædvanligvis med en flig, til hvilken en leder er elektrisk og mekanisk fastgjort. Lederen går på tværs fra kablet til det udstyr, til hvilket kablet skal forbindes. Forbindelsen mellem kablet og lederen er isoleret enten ved hjælp af en støbt strømpe, der er varmekrym-15 pet på forbindelsen eller ved at indkapsle forbindelsen i en stålkappe, der derefter fyldes med et isolerende materiale. Papirisolerede kabler kan kun afsluttes på en af disse to måder, og det er kendt, at sådanne afslutninger kræver en høj grad af faglig kunnen fra per-20 sonen, der udfører afslutningen.A number of designs of high voltage or primary distribution cables have been previously proposed. Paper insulated cable is usually terminated by a tab to which a conductor is electrically and mechanically attached. The conductor goes across from the cable to the equipment to which the cable is to be connected. The connection between the cable and the conductor is insulated either by means of a molded stocking which is heat shrunk on the connection or by encapsulating the connection in a steel casing which is then filled with an insulating material. Paper-insulated cables can only be terminated in one of these two ways, and it is known that such terminations require a high degree of professional skill from the person performing the termination.

Afslutningen af plasticisolerede kabler, i særdeleshed kabler isoleret med en kappe af tværbundet poly ethylen, behandles anderledes. Adskilbare forbindelsesorganer til brug med sådanne kabler indbefatter sæd-25 vanligvis en støbning, der danner en tilspidset åbning og en kabelindføringsåbning. Den tilspidsede åbning er udformet til at passe til en stikprop, medens kablet, der skal forbindes til udstyret forbundet med stikproppen, har en afslutning fastgjort til den afisolerede 30 ende af kablet, idet afslutningen bliver modtaget i kabelindføringsåbningen. Indføringsåbningen lukkes derefter med en stikprop, der passer til den resterende del af støbningen. Ved passende valg af støbningens materiale, og i særdeleshed ved at indføje ledende af-35 skærmningsmateriale i støbningen, kan et sådant forbindelsesorgan gøres berøringssikkert, selv når kabletThe termination of plastic insulated cables, in particular cables insulated with a cross-linked polyethylene sheath, is treated differently. Detachable connecting means for use with such cables usually include a molding which forms a tapered orifice and a cable insertion orifice. The tapered opening is designed to fit a plug, while the cable to be connected to the equipment connected to the plug has an end attached to the stripped end of the cable, the end being received in the cable entry opening. The feed opening is then closed with a plug that fits the remaining part of the molding. By appropriate selection of the molding material, and in particular by incorporating conductive shielding material into the molding, such a connecting member can be made touch-proof even when the cable

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2 er spændingsførende. Imidlertid er sådanne forbindelsesorganer dyre og kræver at blive leveret i en række forskellige størrelser og udformninger til forskellige størrelser og typer af kabler. Ydermere kræves der be-5 tragtelig omhu og faglig kunnen for at sikre en sikker og pålidelig forbindelse.2 is live. However, such connectors are expensive and require to be supplied in a variety of sizes and designs for different sizes and types of cables. In addition, considerable care and professional ability are required to ensure a safe and reliable connection.

Den foreliggende opfindelse søger at løse det problem at skabe et billigt og adskilbart elektrisk forbindelsesorgan anvendeligt til brug ved højspænding, 10 og tillader at lave pålidelige forbindelser mellem en lang række af kabler, samleskinner og andre ledere uden at nødvendiggøre den høje grad af faglig kunnen, der kræves ved de eksisterende metoder til kabelafslutning.The present invention seeks to solve the problem of providing an inexpensive and separable electrical connector useful for high voltage use, 10 and allows to make reliable connections between a wide variety of cables, busbars and other conductors without necessitating the high degree of professional ability, required by the existing cable termination methods.

Med henblik herpå er et elektrisk forbindelses-15 organ til højspænding på ikke mindre end 3,3 kV, og af den art, der omfatter et hus, der homogent og uden elektrisk ledende skærmmateriale er støbt af elektrisk isolerende materiale, hvilket hus omfatter en hoveddel og et derfra udragende skaft, og hvor der i hoveddelen 20 findes en indad tilspidset sokkel, der strækker sig indad fra en åben ende af huset, samt en elektrisk ledende terminal, hvis ene ende ligger an mod den indre ende af soklen og hvis anden ende strækker sig ind i skaftet på huset, ifølge opfindelsen ejendommeligt ved, 25 at terminalen er således støbt ind i huset, at dens anden ende er i intim kontakt med skaftets materiale, men slutter i en lederforbindelsessektion uden for huset.For this purpose, a high voltage electrical connection means is not less than 3.3 kV and of the type comprising a housing which is homogeneously and without electrically conductive shielding material molded from electrically insulating material, which housing comprises a main part and a shaft protruding therefrom, wherein in the body 20 there is an inwardly tapered socket extending inwardly from an open end of the housing, and an electrically conductive terminal, one end abutting the inner end of the socket and the other extends into the shaft of the housing, according to the invention, characterized in that the terminal is so molded into the housing that its other end is in intimate contact with the material of the shaft, but terminates in a conductor connection section outside the housing.

Det vil fremgå af udformningen af forbindelsesorganet ifølge opfindelsen, at dette kan fremstilles 30 billigt i sammenligning med de i øjeblikket brugte komplekse afslutningssystemer, og at soklerne kan udformes til at passe til enhver given udformning af tilspidset bøsning eller stikprop på højspændingsudstyr, med hvilket udstyr kablet skal forbindes. Ydermere kan forbin-35 delsesorganet, idet terminalen har en kabelsektion beliggende uden for huset og således at let tilgængelig, 3It will be apparent from the design of the connector according to the invention that this can be manufactured inexpensively compared to the currently used complex terminating systems and that the sockets can be designed to fit any given design of tapered bushing or plug on high voltage equipment with which equipment is wired must be connected. Furthermore, the connector may be provided, the terminal having a cable section located outside the housing and thus being readily accessible.

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bruges i forbindelse med enhver type og størrelse af kabel, samleskinne eller anden leder, og en sikker forbindelse kan udføres simpelt og hurtigt. Dette giver forbindelsesorganet meget større alsidighed end de i 5 øjeblikket brugte typer af forbindelsesorganer og forbindelsessystemer.is used in conjunction with any type and size of cable, busbar or other conductor, and a secure connection can be made simply and quickly. This provides the connector with much greater versatility than the currently used types of connector and connector systems.

Pra beskrivelsen til CH-A-356177 kender man et elektrisk forbindelsesorgan af den i indledningen til krav 1 angivne type, men kun beregnet til kontakteta-10 blering i multidistributionsbox, formet som én blok, til brug i en præfabrikeret celle uden istikningsmulighed. For at etablere forbindelse mellem tre transformerterminaler og en således udformet kon-nektor må hver terminal eller en dermed forbundet leder 15 gennem en åbning stikkes ind i konnektoren for at ligge ind i et område ved en indre ende af en tilhørende sokkelåbning i konnektoren. Når terminalen således er blevet bragt på plads fastholdes det af en såkaldt tulip-holder, der kan være tilsluttet en ledningsafbryders 20 terminal. Denne monoblok-konnektor er beregnet til en specifik anvendelse og det forhold at den mangler en terminal i intim kontakt med skaftmaterialet og udragende i forhold dertil for at skabe en kabeltilslutningsdel gør det umuligt, at udnytte læren fra CH-A-25 356177 til det problem, opfindelsen løser.From the description of CH-A-356177, an electrical connector of the type specified in the preamble of claim 1 is known, but intended only for contacting in a multi-distribution box, shaped as one block, for use in a prefabricated cell without insertion. In order to establish a connection between three transformer terminals and a connector thus formed, each terminal or associated conductor 15 must be inserted through an aperture into the connector to lie in a region at an inner end of an associated socket opening in the connector. Thus, when the terminal has been brought into place, it is held by a so-called tulip holder, which may be connected to the terminal of a wiring switch 20. This monoblock connector is intended for a specific application and the fact that it lacks a terminal in intimate contact with the shaft material and protruding therefrom to create a cable connection member makes it impossible to utilize the teachings of CH-A-25 356177 for that problem. , the invention solves.

Soklen og skaftet kan have parallelle akser, således at forbindelsesorganet har en lige form til at forbinde en stikprop til en leder generelt i linie med stikproppen. Alternativt kan skaftet gå ud fra hovedde-30 len på tværs af soklens akse for at danne et vinkel eller T-forbindelsesorgan, der gør det muligt, for eksempel, at tilslutte en opadgående leder til en horisontalt beliggende stikprop.The socket and shaft may have parallel axes such that the connecting means has a straight shape for connecting a plug to a conductor generally in line with the plug. Alternatively, the shaft may extend from the main body across the axis of the socket to form an angle or T-connector which allows, for example, to connect an upward conductor to a horizontally located plug.

Det materiale, som huset er støbt af, har fort-35 rinsvis et relativt krybestrørnsindeks måle i overensstemmelse med I.E.C. Standard Publikation 112:1979 påThe material of which the housing is molded preferably has a relatively creep index of measurement in accordance with I.E.C. Standard Publication 112: 1979 at

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4 ikke mindre end 900 volt, idet der bruges messingelektroder. Mere ønskeligt bør materialet være af klassificering B2.5 ifølge skråplanskrybestrømtesten vist i I.E.C. Standard Publikation 587:1977.4 not less than 900 volts, using brass electrodes. More desirably, the material should be of classification B2.5 according to the slope creep flow test shown in I.E.C. Standard Publication 587: 1977.

5 Fortrinsvis skal materialet også have en dielek trisk styrke målt i overensstemmelse med Britisk Standard nr. 2782 på ikke mindre end 6 kV/mm og en dielektrisk tabsvinkel (tan 6) ved 20°C og 50 hertz på ikke mere end 0.04. Materialet bør ønskeligt også være så-10 dant, at forbindelsesorganet kan modstå spidsfejlstrøm på mindst 8,75 kiloampére i en periode på ét sekund. Materialet skal fortrinsvis også være i stand til at kunne blive brugt i længere perioder ved temperaturer over 90°C uden betydende forringelse af de førnævnte 15 elektriske egenskaber eller mekaniske egenskaber såsom Shorehårdhed, trækstyrke og den procentuelle brudforlængelse. Eksempler på formålstjenlige materialer er visse støbbare elastomeriske polyurethan-guiranier og harpikser. Terminalen kan være af ethvert ledende mate-20 riale, f.eks. kobber.Preferably, the material must also have a dielectric strength measured in accordance with British Standard No. 2782 of not less than 6 kV / mm and a dielectric loss angle (tan 6) at 20 ° C and 50 hertz of not more than 0.04. Desirably, the material should also be such that the connector can withstand peak failure current of at least 8.75 kilograms for a period of one second. Preferably, the material should also be capable of being used for prolonged periods at temperatures above 90 ° C without significantly impairing the aforementioned electrical or mechanical properties such as shore hardness, tensile strength and percent elongation. Examples of suitable materials are certain castable elastomeric polyurethane guaranias and resins. The terminal may be of any conductive material, e.g. copper.

Terminalens kabelforbindelsessektion kan udformes på en række forskellige måder. Ved en første udførelsesform kan sektionen være en massiv endesektion, der har i hvert fald én plan overflade, et hul gående 25 gennem endesektionen på tværs af overfladen og være udformet til at modtage en bolt, ved hjælp af hvilken en forbindelsesflig på et kabel eller anden leder kan fæstnes til sektionen. Der er således en simpel boltet forbindelse mellem lederen og forbindelsesorganet. Ved 30 en anden udførelsesform er en massiv endesektion af terminalen udformet til at modtage en ekstern samlebøs-ning, der er i stand til at blive fæstnet til sektionen og til den ende af lederen, der skal fastgøres til sektionen. Ved en tredie udførelsesform indbefatter termi-35 nalens lederforbindelsessektion en åben del, f.eks. en rørformet sektion, ind i hvilken enden af lederen kanThe cable connection section of the terminal can be designed in a variety of ways. In a first embodiment, the section may be a solid end section having at least one flat surface, a hole passing through the end section across the surface and being designed to receive a bolt by means of which a connecting tab on a cable or other leader can be attached to the section. There is thus a simple bolted connection between the conductor and the connecting means. In another embodiment, a solid end section of the terminal is designed to receive an external assembly bushing capable of being attached to the section and to the end of the conductor to be attached to the section. In a third embodiment, the terminal conductor section of the terminal includes an open portion, e.g. a tubular section into which the end of the conductor can

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5 isættes, og derefter deformeres delen for at sikre, at delen bliver på lederen. Ved passende valg af type af lederforbindelsessektion kan enhver type leder eller kabel i almindelig brug simpelt og sikkert blive for-5 bundet til forbindelsesorganet.5 is inserted, and then the portion is deformed to ensure that the portion remains on the conductor. By appropriate choice of type of conductor connection section, any type of conductor or cable in ordinary use can be simply and securely connected to the connector.

Når en leder er elektrisk og mekanisk forbundet til kabelforbindelsessektionen, bliver forbindelsen passende dækket af en isolerende muffe, der omgiver endedelen af lederen og i det mindste endedelen af husets 10 skaft. Sådanne muffer kan for eksempel være simple på-glidningsmuffer eller elastiske muffer, muffer af var-mekrympende materiale eller muffer lavet ved at vikle selvklæbende tape rundt om samlingen. Muffer af varme-krympende materiale bliver først påsat løst omkring 15 forbindelsen mellem forbindelsesorganet og lederen og derefter varmekrympet på plads, efter at den elektriske og mekaniske forbindelse er udført. Muffen er kun påkrævet rundt om skaftet og kabelenden i modsætning til tidligere systemer, der bruger varmekrympbare muffer, 20 som har omgivet ikke kun den lige nævnte del, men også hele bøsningen og den dermed forbundne samling, der danner kabelafslutningen, udformningen og fremstillingen af passende varmekrympbare muffer er simplificeret meget med forbindelsesorganet ifølge opfindelsen. Fort-25 rinsvis har ydersiden af husets skaft mindst et radialt fremspring, der fortrinsvis kan være udformet som en ribbe, der går rundt om omkredsen af skaftet. Sådanne fremspring hjælper til at fastgøre den isolerende muffe på plads på forbindelsesorganet.When a conductor is electrically and mechanically connected to the cable connection section, the connection is suitably covered by an insulating sleeve surrounding the end portion of the conductor and at least the end portion of the shaft of the housing 10. Such sleeves may, for example, be simple sliding sleeves or elastic sleeves, sleeves of heat shrinkable material or sleeves made by wrapping self-adhesive tape around the joint. Sleeves of heat-shrinking material are first applied loosely around the connection between the connector and the conductor and then the heat shrink in place after the electrical and mechanical connection is made. The sleeve is only required around the shaft and cable end as opposed to previous systems using heat shrinkable sleeves, 20 which have encircled not only the just mentioned portion but also the entire sleeve and associated assembly forming the cable termination, design and manufacture of suitable heat shrinkable sleeves are greatly simplified with the connector according to the invention. Preferably, the outside of the housing shaft has at least one radial protrusion, which may preferably be formed as a rib extending around the circumference of the shaft. Such protrusions help to secure the insulating sleeve in place on the connector.

30 Udformningen af terminalen inden i hoveddelen af huset og dets sammenhæng med soklen kan udformes til at passe til den specifikke brug af forbindelsesorganet.The design of the terminal within the body of the housing and its connection to the base may be designed to suit the specific use of the connector.

Ved en udførelsesform er terminalen bøjet inden i hoveddelen af huset, og den blottede del af terminalen 35 rager ind i soklen fra den indre del af denne og er koaksial med soklen. Ved en anden udførelsesform åbnerIn one embodiment, the terminal is bent within the body of the housing and the exposed portion of terminal 35 projects into the base of the inner portion thereof and is coaxial with the base. In another embodiment, opener

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e en hjælpesokkel koaksial med den første sokkel sig ind i hoveddelen Ira en anden ende af denne, og hjælpesok-len har en indre ende, der er adskilt fra den indre ende af den første sokkel ved den blottede del af termi-5 nalen. Den blottede del af terminalen kan så simpelthen dannes med et hul gående gennem terminalen og koaksialt med soklerne, hvor dette hul er i stand til at modtage et med skruegang forsynet skæft på en stikprop, der passer ind i soklen, og således at en møtrik kan brin-10 ges til indgreb med skæftet for at fastgøre stikproppen i indgreb med terminalen. En elektrisk isolerende stikprop kan blive sat i hjælpesoklen for at lukke dennes åbning og dermed positivt udelukke tilfældig adgang til den blottede del af terminalen. En stikprop på dette 15 sted kan udformes med indbyggede afskærmningsindretninger, hvorved afskærmningen kan forbindes til en neonindikator og derved give indikation om spændingsførende forbindelser på en simpel og bekvem måde.an auxiliary pedestal coaxial with the first pedestal extends into the body portion a second end thereof, and the auxiliary pedestal has an inner end spaced from the inner end of the first pedestal at the exposed portion of the terminal. The exposed portion of the terminal can then simply be formed with a hole passing through the terminal and coaxially with the sockets, where this hole is capable of receiving a threaded shaft on a plug which fits into the socket and so that a nut can is brought into engagement with the shank to secure the plug in engagement with the terminal. An electrically insulating plug can be inserted into the auxiliary socket to close its opening and thus positively preclude random access to the exposed portion of the terminal. A plug at this location can be designed with built-in shielding devices, whereby the shielding can be connected to a neon indicator, thereby giving indication of live conducting connections in a simple and convenient manner.

Den grundlæggende udførelse af forbindelsesorga-20 net ifølge opfindelsen tilvejebringer sokkelåbning ind i omtalte ene ende af hoveddelen til modtagelse af en enkelt stikprop. Det yderst simple princip bag opfindelsen gør det imidlertid muligt at tilvejebringe andre udformninger af forbindelsesorganer. Ved én variation 25 kan to eller flere tilspidsede sokler således åbne sig ind i hoveddelen fra en fælles ende af denne, idet alle soklernes akser er parallelle, og den ledende terminal har dele beliggende ved den indre ende af hver sokkel og blottet for hver sokkel. Hvis husets skaft opfattes 30 som værende ved den nedre del af dette, så kan flere sokler anbringes oven over hinanden og/eller ved siden af hinanden. Således kan en enkelt støbning have flere udgangssokler forbundet til en enkelt indgangsleder.The basic embodiment of the connecting device according to the invention provides socket opening into said one end of the main part for receiving a single plug. However, the extremely simple principle of the invention makes it possible to provide other designs of connecting means. Thus, with one variation 25, two or more tapered bases may open into the body portion from a common end thereof, with all axes of the bases being parallel, and the conductive terminal having portions located at the inner end of each plinth and exposed to each plinth. If the shaft of the housing is perceived to be at the lower part thereof, then several plinths may be placed one above the other and / or adjacent to one another. Thus, a single casting may have multiple output sockets connected to a single input conductor.

Hvis det er påkrævet, kan hver sokkel have en tilknyt-35 tet hjælpesokkel koaksial hermed, hvilken hjælpesokkel, hvis det er påkrævet, kan lukkes med en stikprop.If required, each socket may have an associated auxiliary socket coaxially, which auxiliary socket, if required, may be closed with a plug.

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77

Ved en yderligere udformning kan huset have en integreret forlængelse fra hoveddelen, idet mindst én yderligere sokkel dannes i forlængelsen, og terminalen går på en sådan måde, at en yderligere del af denne er 5 beliggende ved den indre ende af den eller hver yderligere sokkel. Aksen af den eller hver yderligere sokkel behøver ikke at være parallel med den første sokkels akse, og den eller de yderligere sokler behøver ikke at have den samme form som den første sokkel.In a further embodiment, the housing may have an integral extension from the main portion, with at least one additional socket being formed in the extension, and the terminal running in such a way that a further portion thereof is located at the inner end of the or each additional socket. The axis of the or each further pedestal need not be parallel to the axis of the first pedestal, and the additional pedestal (s) need not be of the same shape as the first pedestal.

10 Ved endnu en udformning er den anden ende af ho veddelen af det støbte hus udformet med en tilspidset sokkel-han-part, der kan indgribe med et andet på linie aksialt opstillet forbindelsesorgan. På denne måde kan to eller flere ledere blive forbundet til en enkelt 15 indgang eller udgang.In yet another embodiment, the other end of the main body of the molded housing is formed with a tapered pedestal male member which can engage another axially aligned connecting member. In this way, two or more conductors can be connected to a single input or output.

Opfindelsen omfatter også et elektrisk forbindelsesarrangement, der omfatter et elektrisk forbindelsesorgan i enhver af de former, der er beskrevet ovenfor, en stikprop i indgreb med soklen eller en af sok-20 lerne af forbindelsesorganet og i elektrisk forbindelse med terminalen, og en leder elektrisk og mekanisk forbundet til terminalens kabelforbindelsessektion. Fortrinsvis er forbindelsen mellem lederen og terminalen dækket af en isolerende muffe, der omgiver endede-25 len af lederen og i hvert fald en del af husets skaft.The invention also includes an electrical connection arrangement comprising an electrical connector in any of the forms described above, a plug engaging the socket or one of the sockets of the connector and in electrical communication with the terminal, and a conductor electric and mechanically connected to the terminal cable connection section. Preferably, the connection between the conductor and the terminal is covered by an insulating sleeve which surrounds the end of the conductor and at least part of the shaft of the housing.

Som allerede nævnt kan muffen passende være udført af et sådant materiale, at den kan blive varmekrympet på plads efter at være blevet løseligt lagt rundt om forbindelsen.As already mentioned, the sleeve may conveniently be made of such material that it can be heat shrunk in place after being loosely wrapped around the joint.

30 Selvom det støbte hus er af isolerende materia le, kan det meget vel ikke være berøringssikkert, og der må naturligvis udvises omhu for at sikre mod adgang til forbindelsesorganet. Forbindelsesorganerne vil således normalt blive anbragt inden for en metalindkaps-35 let kabelboks, der er forbundet til jord. Der er naturligvis ikke nogen grund til at udfylde boksen med iso-30 Although the molded housing is of insulating material, it may well not be touch-proof and care must be taken, of course, to ensure access to the connector. Thus, the connecting means will usually be placed within a metal encapsulated cable box connected to ground. Of course, there is no reason to fill the box with iso-

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s lerende materiale, og forbindelsesorganerne kan således efterlades fuldstændigt blottede, således at de let kan blive adskilt fra bøsningen eller stikproppen, der modtages i soklen, når spændingen er blevet fjernet, og 5 forbindelsesorganet gjort elektrisk sikkert.Thus, they can be left completely exposed so that they can easily be separated from the socket or plug received in the socket when the voltage has been removed and the connector is made electrically safe.

Opfindelsen forklares nærmere i det følgende.ved hjælp af eksempler under henvisning til tegningen, i hvilken fig. 1 viser et snit gennem en første udførel-10 sesform af forbindelsesorganet, fig. 2 det i fig. 1 viste forbindelsesorgan set fra enden, fig. 3 en elektrisk forbindelsessamling, der benytter forbindelsesorganet fra fig. 1, 15 fig. 4 og 5 hver en elektrisk forbindelsessam ling, der benytter en yderligere udførelsesform af forbindelsesorganet ifølge opfindelsen, fig. 6 et isometrisk billede af en forbindelsessamling ligedannet med den fra fig. 5, i brug, 20 fig. 7 en elektrisk forbindelsessamling, der be nytter endnu en udførelsesform af forbindelsesorganet ifølge opfindelsen, fig. 8 til 10 snit gennem andre udførelsesformer af forbindelsesorganet, og 25 fig. 11 og 12 yderligere elektriske forbindel sessamlinger, der benytter forbindelsesorganet fra fig.The invention will be explained in more detail below with reference to examples in which: FIG. 1 is a section through a first embodiment of the connector; FIG. 2 shows the embodiment of FIG. 1 from the end, FIG. 3 shows an electrical connection assembly utilizing the connector of FIG. 1, FIG. 4 and 5 are each an electrical connection assembly utilizing a further embodiment of the connector according to the invention; 6 is an isometric view of a joint assembly similar to that of FIG. 5, in use, 20 fig. 7 shows an electrical connection assembly utilizing yet another embodiment of the connector according to the invention; FIG. 8 to 10 are sections through other embodiments of the connector, and FIG. 11 and 12 further electrical connection assemblies utilizing the connector of FIG.

1.First

Fig. 1 og 2 viser et elektrisk forbindelsesorgan, der indbefatter et støbt hus 1, der har en hoved-30 del 2 og et skaft 3 gående ud på tværs derfra.. En indad tilspidset sokkel 4 åbner sig ind i hoveddelen fra den ene ende af denne, og en indad tilspidset hjælpesokkel 5 åbner sig ind i hoveddelen fra en anden ende af denne. De to sokler er koaksiale. En ledende 35 terminal 6 er støbt i position i huset og har en blottet del 7 beliggende mellem, og separerende de 9FIG. 1 and 2 show an electrical connector including a molded housing 1 having a head portion 2 and a shaft 3 extending transversely therefrom. An inwardly pointed socket 4 opens into the body portion from one end thereof. and an inwardly tapered auxiliary base 5 opens into the body portion from another end thereof. The two bases are coaxial. A conductive terminal 6 is molded into position in the housing and has a exposed portion 7 located between and separating the 9

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indre ender af soklen 4 og hjælpespklen 5. Terminalen er ført gennem skaftet 3 og slutter ved en ydre ende 8, der danner en lederforbindelsessektion beliggende uden for huset. Enden 8 er massiv og af rektan-5 gulært tværsnit. Terminalen er forsynet med huller henholdsvis 9 og 10 ved dens blottede del og leder forbindelsessektion, idet hullet 9 er koaksialt med soklerne.inner ends of the base 4 and the auxiliary pin 5. The terminal is passed through the shaft 3 and terminates at an outer end 8 forming a conductor connecting section located outside the housing. The end 8 is solid and of rectangular yellowish cross section. The terminal is provided with holes 9 and 10 at its exposed portion, respectively, and guides connecting section, the hole 9 being coaxial with the sockets.

Porbindelsesorganet er støbt således, at soklen 10 4 har form og størrelse, der opfylder de anerkendte standarder for adskilbare højspændingsforbindelsesorganer, og fortrinsvis således, at tolerancerne mellem soklen og en bøsning eller stikprop er sådanne, at der gives hermetisk lukket samling, der totalt vil udelukke 15 indvirkning af fugt på forbindelsesorganet. Det er på den anden side klart, at soklen kan være af enhver ønsket størrelse eller form, så den passer til den bøsning eller stikprop, ved hjælp af hvilken den er forbundet til det udstyr, der skal kobles til.The pore connecting means is molded so that the base 10 4 is of shape and size that meets the recognized standards for separable high voltage connecting means, and preferably such that the tolerances between the base and a bushing or plug are such that a hermetically sealed assembly will be provided which totally excludes 15 effect of moisture on the connector. On the other hand, it is clear that the socket can be of any desired size or shape to fit the socket or plug by which it is connected to the equipment to be connected.

20 Huset kan passende blive støbt af en fleksibel polyurethan-elastomer dannet fra en harpiks, der er en katalyseret blanding af polyetherpolyoler indeholdende tørringsmidler og et chrombaseret uorganisk pigment, og fra en hærder, der er en præpolymeriseret form af di-25 phenyl-methan-di-isocyanat.Suitably, the housing may be molded from a flexible polyurethane elastomer formed from a resin which is a catalyzed mixture of polyether polyols containing drying agents and a chromium-based inorganic pigment, and from a hardener which is a prepolymerized form of diphenylmethane. di-isocyanate.

Ved et bestemt udførelseseksempel udviste materialet de følgende egenskaber. Det relativt krybestrøm-sindeks målt i overensstemmelse med I.E.C. Standard Publikation 112:1979 efter nylig støbning og efter mod-30 ning i 240 timer ved 120°C var 110 V, idet der blev brugt messingelektroder. Ved udsættelse for skråplans-krybestrømstesten som anvist i I.E.C. Standard Publikation 587:1977 viste materialet sig at være i klasse B2.5 både før og efter modning. De dielektriske egen-35 skaber målt i overensstemmelse med Britisk Standard Nr.In a particular embodiment, the material exhibited the following properties. The relative creep flow index measured in accordance with I.E.C. Standard Publication 112: 1979 after recent casting and after ripening for 240 hours at 120 ° C was 110 V using brass electrodes. Upon exposure to the oblique creep flow test as directed in I.E.C. Standard Publication 587: 1977, the material was found to be in Class B2.5 both before and after maturation. The dielectric properties measured in accordance with British Standard no.

2782 var en dielektrisk styrke på 8,33 kv/mm, en volu- i 102782 was a dielectric strength of 8.33 sq / mm, a volume of 10

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menresistivitet på 2,3 x 1011 ohm og en overfladeresi-stivitet på 8,9 x 1012 ohm. Den dielektriske tabsvinkel (tan 6) ved 20°C og 50 Hz var 0,015. Efter at have stået ved rumtemperatur i en uge efter støbningen var o i 5 trækstyrken af materialet 17,9 n/mm , brudforlængelsen | 250% og en Shore-A-hårdhed på 90°. Efter modning i luft | i 430 timer ved 120°C var trækstyrken 20,7 n/mm2, brud- j forlængelsen 300% og Shore-A-hårdheden 70°. Materialet udviser således meget fine modningsegenskaber. En lang | i 10 række forbindelsesorganer som beskrevet heri er blevet støbt af dette materiale og har vist sig at kunne klare j høje elektriske belastninger, og i særdeleshed at modstå en spidsfejlstrøm på mindst 8,75 kiloampére efterfulgt af en symmetrisk fejlstrøm på mindst 3,75 kiloam-15 pére i en periode på ét sekund. Andre afprøvede materialer, der har et relativt krybestrømsindeks på over 900 volt, en dielektrisk styrke på over 6 kv/mm og en dielektrisk tabsvinkel på mindre end 0,04, har vist sig i stand til at danne forbindelsesorganer, der kan over-20 føre en stor effekt ved spændinger over 3,3 kV med gode fejlstrømsegenskaber.2.3 x 1011 ohms and a resistivity of 8.9 x 1012 ohms. The dielectric loss angle (tan 6) at 20 ° C and 50 Hz was 0.015. After standing at room temperature for one week after casting, o in 5 tensile strength of material was 17.9 n / mm, fracture extension | 250% and a 90 ° Shore-A hardness. After ripening in air | for 430 hours at 120 ° C the tensile strength was 20.7 n / mm 2, the fracture elongation was 300% and the Shore-A hardness was 70 °. Thus, the material exhibits very fine maturation properties. And long | in 10 series of connectors as described herein have been molded from this material and have been found to withstand high electrical loads, and in particular to withstand a peak fault current of at least 8.75 kilograms followed by a symmetrical fault current of at least 3.75 kilograms. 15 bulbs for a period of one second. Other tested materials having a relative creep current index of over 900 volts, a dielectric strength greater than 6 kv / mm and a dielectric loss angle of less than 0.04 have been found capable of forming connectors capable of transmitting a large power at voltages above 3.3 kV with good fault current characteristics.

En normal måde at bruge forbindelsesorganet ifølge fig. 1 og 2 er illustreret i fig. 3. Ved denne udførelsesform er forbindelsesorganet lidt ændret fra 25 den i fig. 1 og 2 viste form, idet lederen 6 er af cirkulært tværsnit inden i skaftet 3, der er af samme tværsnit, idet de øvre og nedre ender af lederen bliver udfladiget i området ved samlingen. Forbindelsesorganet danner en vinkelforbindelse, der er i stand til at for-30 binde et opadgående kabel 11 til en tilspidset bøsning eller stikprop 12, der er i stand til at føre elektrisk strøm til ethvert krævet udstyr. Stikproppen 12 passer i soklen 4 og lukker tæt i denne tilspidsning. En silikone-, petroleums- eller estértætningsmid-35 del vil normalt blive påført stikproppen for at sikre en lufttæt forsegling og forhindre overslags- ellerA normal way of using the connector of FIG. 1 and 2 are illustrated in FIG. 3. In this embodiment, the connector is slightly changed from the one shown in FIG. 1 and 2, the conductor 6 being of circular cross-section within the shaft 3 being of the same cross-section, the upper and lower ends of the conductor being flattened in the region of the joint. The connecting means forms an angular connection capable of connecting an upward cable 11 to a tapered socket or plug 12 capable of conducting electrical current to any required equipment. The plug 12 fits into the socket 4 and closes tightly in this taper. A silicone, petroleum, or ester sealant will normally be applied to the plug to ensure an airtight seal and prevent breakage or

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11 overfladeudladning. Enden af stikproppen er udformet med et hul med skruegang på indersiden, der modtager en skruebolt, der er ført gennem hullet 9 i den blottede del 7 af terminaldelen, og er holdt fast med en mø-5 trik 15. En forseglingsstikprop 16 passer ind i hjælpesoklen, hvilken forseglingsstikprop fortrinsvis er af isolerende materiale, der kan være stift, når huset er af fleksibelt materiale. Stikproppen har en med skruegang udformet indsats 16a, der indgriber med en-10 den af skruen 14. Møtrikken 15 kan bruges til enten at trække stikproppen ind til sikker elektrisk forbindelse med terminalen 6 eller til at frigive den fra en sådan kontakt, idet forseglingsstikproppen isolerer dette kontaktområde.11 surface discharge. The end of the plug is formed with a screw hole on the inside which receives a screw bolt passed through the hole 9 in the exposed portion 7 of the terminal portion and is held in place with a nut 15. A sealing plug 16 fits into the the socket, which sealing plug is preferably of insulating material which may be rigid when the housing is of flexible material. The plug has a screw-shaped insert 16a which engages one of the screw 14. The nut 15 can be used to either pull the plug in for secure electrical connection to the terminal 6 or to release it from such a contact, as the seal plug insulates. this contact area.

15 Den øvre ende af kablet 11 afisoleres passen de, og en forbindelsesflig 17 bliver påkrympet eller på anden måde sikret til den ledende kerne 18 af kablet. Fligen har en udfladiget ende 19 gennem hvilken er dannet en åbning 20, der kan anbringes ud for 20 hullet 10 i den ydre ende af terminalen, og fligen bliver derefter sikret til terminalen med en passende skrue- og møtrikforbindelse 21. Før udførelsen af denne forbindelse er en løs muffe af varmekrympende materiale blevet ført over den frie ende af kablet. Efter 25 udførelsen af forbindelsen trækkes muffen ind over den og over skaftet 3 på huset. Når muffen er på plads, udføres varmekrympningen på denne, således at den griber rundt om skaftet 3, forbindelsen og den øverste del af kablet for at beskytte og isolere forbindelsen.The upper end of the cable 11 is passively insulated and a connecting tab 17 is shrunk or otherwise secured to the conductive core 18 of the cable. The tab has a flattened end 19 through which is formed an opening 20 which can be placed next to the hole 10 at the outer end of the terminal, and the tab is then secured to the terminal with a suitable screw and nut connection 21. Prior to carrying out this connection a loose sleeve of heat shrinking material has been passed over the free end of the cable. After making the connection, the sleeve is pulled over it and over the shaft 3 of the housing. When the sleeve is in place, the heat shrinkage is performed on it so that it grips around the shaft 3, the connection and the upper part of the cable to protect and insulate the connection.

30 Ethvert passende varmekrympende materiale kan benyttes til denne muffe. Skaftet er udformet med to rundtgående ribber 23 (eller anden form for passende radialt fremspring) for at hjælpe med til at forankre muffen 22.Any suitable heat shrinkable material may be used for this sleeve. The shank is formed with two circumferential ribs 23 (or some other suitable radial protrusion) to help anchor the sleeve 22.

35 En samlingsforbindelse som vist i fig. 3, hvor forbindelsesorganets hus er støbt i den fleksible poly-35 An assembly connection as shown in FIG. 3, wherein the housing of the connector is molded in the flexible polyethylene.

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12 urethan-elastomer, der er beskrevet tidligere, blev afprøvet som følger. Samlingen blev placeret i en lukket indeslutning og udsat for en vekselspænding på 12,9 kv i 1000 timer. Under afprøvningen blev vand med en kon-5 duktivitet på 800 ysiemens/cm kontinuerligt sprøjtet på samlingen med en mængde på 4 liter/time/m3. Efter de 1000 timer var forløbet, blev spændingen afbrudt og forbindelsesorganet inspiceret. Ingen krybestrømme var blevet bemærket, og ingen erosion af materialet var 10 evident. En lignende samlingsforbindelse blev derefter nedsænket i en beholder med vand med konduktiviteten 800 ysiemens/cm. En vekselspænding på 12,9 kV blev påført og opretholdt i 3 uger, uden at der blev erfaret nogen problemer.Twelve urethane elastomers described previously were tested as follows. The assembly was placed in a closed enclosure and subjected to an alternating voltage of 12.9 kv for 1000 hours. During the test, water with a conductivity of 800 ysiemens / cm was continuously sprayed onto the joint at a rate of 4 liters / hour / m3. After the 1000 hours had elapsed, the voltage was interrupted and the connector inspected. No creep flows had been noticed and no erosion of the material was evident. A similar joint compound was then immersed in a container of water having the conductivity 800 ysiemens / cm. An AC voltage of 12.9 kV was applied and maintained for 3 weeks with no problems experienced.

15 Samlingen mellem kablet og forbindelsesorganet vil normalt blive udført, før soklen er samlet med stikproppen 12. Således er arbejdsområdet omkring samlingen ikke indskrænket til et fast sted for forbindelsesorganet, og ensartet tilførsel af varme til alle de-20 le af den varmekrympende muffe lettes herved. En tilsvarende grad af adgang og manøvredygtighed er tilgængelig for andre muffer end varmekrympende, for eksempel ved opbygning af en muffe ved at vikle selvklæbende tape rundt om samlingen.The connection between the cable and the connector will normally be performed before the base is assembled with the plug 12. Thus, the working area around the connector is not restricted to a fixed location of the connector, and uniform supply of heat to all parts of the heat shrinkable sleeve is thereby facilitated. . A similar degree of access and maneuverability is available for sleeves other than heat shrinkage, for example by building a sleeve by wrapping self-adhesive tape around the joint.

25 Hvis det er ønskeligt at bruge et stift hus og en stiv stikprop, eller i enhver anden sammenhæng hvor tætning kan blive et problem mellem de tilspidsede overflader af stikproppen og soklen, kan stikproppen blive udformet med en integreret flange og en tætnings-30 ring indsat mellem dennes flange og overfladen af huset, når stikproppen indsættes til dannelse af elektrisk forbindelse. Hvis det er ønskeligt at have ekstra tætning ved soklen 4, kan den radiale indre overflade af denne sokkel ved enhver udførelsesform forsynes med 35 én eller flere rundtgående tætningsringe, eller med en ringformet forseglingsmuffe af passende materiale. Hvis 1325 If it is desirable to use a rigid housing and rigid plug, or in any other context where sealing may become a problem between the tapered surfaces of the plug and socket, the plug may be formed with an integral flange and a sealing ring inserted. between its flange and the surface of the housing when the plug is inserted to form electrical connection. If it is desirable to have additional sealing at the base 4, the radial inner surface of this base may in any embodiment be provided with one or more circumferential sealing rings, or with an annular sealing sleeve of suitable material. If 13

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huset er stift, vil forseglingsstikproppen generelt være af fleksibelt materiale. Også her kan én eller flere forseglingsringe eller en forseglingsmuffe blive tilføjet i hjælpesoklen.the housing is rigid, the sealing plug will generally be of flexible material. Here, too, one or more sealing rings or a sealing sleeve may be added to the auxiliary base.

5 Fig. 4 viser en alternativ udførersesform af forbindelsesorganet, ved hvilken dele af dette har samme udformning som forbindelsesorganet fra fig. 1, og således er angivet med samme referencenumre med indeks a. Ved denne udførelsesform er lederen 6a rørformet, 10 og den ene ende er affladiget dannende den blottede del 7a beliggende ved den indre ende af soklen 4a. Den hule rørformede del af lederen ender ved en ende 8a dannende en ledersektion beliggende uden for huset. Den afisolerede ende af kablet 18a kan blive indført i 15 enden af terminalen, og terminalen bliver derefter knebet sammen som ved 25 for at fastgøre terminalen og kablet til hinanden. En isolerende muffe 22a dækker området omkring samlingen.FIG. 4 shows an alternative embodiment of the connector in which parts thereof have the same configuration as the connector of FIG. 1, and thus denoted by the same reference numerals with index a. In this embodiment, the conductor 6a is tubular, 10 and one end is flattened to form the exposed portion 7a located at the inner end of the base 4a. The hollow tubular portion of the conductor ends at an end 8a forming a conductor section located outside the housing. The stripped end of cable 18a may be inserted into the end of the terminal and the terminal is then pinched together as at 25 to secure the terminal and cable to each other. An insulating sleeve 22a covers the area around the joint.

Fig. 5 viser et vinkelforbindelsesorgan specielt 20 udformet til at behandle strømstyrker op til 400 Amp ved 36 kvolt. Det støbte hus danner en hoveddel 31 og et skaft 32 gående på tværs ud fra denne. En indad tilspidset sokkel 33 åbner sig ind i hoveddelen fra den ene ende af denne. En ledende terminal 34 er 25 støbt i position i huset, hvilken terminal går gennem skaftet og går ud derfra dannende en massiv, i tværsnit cirkulær endedel 35, der danner en lederforbindelsessektion. Inden i husets hoveddel er terminalen bøjet som ved 36, og den slutter i en blottet del 37, der 30 går ind i soklen 33 fra den indre ende af denne og koaksialt med denne. Den fremspringende del 37 og soklen 33 er udformede til at modtage en standard kredsløbsbøsning til den beregnede strøm. Sektionen 35 kan fastgøres til den afisolerede ende 38 af et kabel 35 39 med en ring 40, sikret ved krympning, gevindstif ter, slaglodning, svejsning eller enhver anden passendeFIG. Fig. 5 shows an angular connector 20 specially designed to process currents up to 400 Amp at 36 volts. The molded housing forms a body portion 31 and a shaft 32 extending transversely therefrom. An inwardly tapered base 33 opens into the body portion from one end thereof. A conductive terminal 34 is cast into position in the housing, which terminal passes through the shaft and proceeds therefrom forming a solid, cross-sectional circular end portion 35 forming a conductor connecting section. Inside the body of the housing, the terminal is bent as at 36, ending in a bare portion 37 which 30 enters the socket 33 from the inner end thereof and coaxially with it. The protruding portion 37 and the socket 33 are configured to receive a standard circuit bushing for the calculated current. The section 35 can be attached to the stripped end 38 of a cable 35 39 with a ring 40 secured by shrinkage, threaded pins, brazing, welding or any other suitable

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14 måde til at samle sektionen 35 med kablet. Området omkring samlingen vil igen blive dækket af en isolerende muffe.14 way of joining section 35 with the cable. The area around the assembly will again be covered by an insulating sleeve.

Fig. 6 viser et forbindelsesorgan 41, der lig-5 ner det fra fig. 5, men det har en blad-lignende lederforbindelsessektion 42, og dets sokkel er sat i position på en kredsløbsbøsning ved enden af kablet 43.FIG. 6 shows a connector 41 similar to that of FIG. 5, but it has a blade-like conductor connection section 42 and its base is positioned on a circuit bush at the end of the cable 43.

Kablet 43 har en krave 44 bag hvilken er anbragt en klemme 45, fra hvilken der går en strop 46 af nylon 10 eller et andet ikke metallisk materiale, og begge ender af stroppen er fastgjort til klemmen 45. En vingeskrue 47 er i indgreb med en med indvendig skruegang udformet indsats 48, der er indstøbt i stroppen, og fastholder en skive 49 optaget i en fordybning 49a (fig.The cable 43 has a collar 44 behind which is provided a clamp 45 from which a nylon 10 strap 46 or other non-metallic material is attached, and both ends of the strap are attached to the clamp 45. A wing screw 47 engages a with an internal screw thread, an insert 48 formed in the strap and holds a disc 49 accommodated in a recess 49a (FIG.

15 5) på forbindelsesorganet. Vingemøtrikken kan strammes for at fastholde forbindelsesorganet sikkert til bøsningen .5) on the connector. The wing nut can be tightened to secure the connector securely to the bushing.

Fig. 7 viser en alternativ udførelsesforn af forbindelsesorganet, ved hvilken dele af denne har sam-20 me udformning som forbindelsesorganet fra fig. l, og er således med samme referencenumre med indeks b. Ved denne udførelsesform er forbindelsesorganet støbt til at have en integreret forlængelse 50 fra hoveddelen 2b, og en yderligere sokkel 51 dannes i denne 25 forlængelse. Terminalens materiale 6b er forlænget ved 52 for at gå gennem udvidelsen således, at en del 53 af denne ligger ved den indre ende af den yderligere sokkel 51. Yderligere udstyr kan således blive forbundet til et indgangskabel 11b ved en forbindelse 30 54 i forbindelse med soklen 51, og en tætningsring 55 kan om nødvendigt indsættes. Den yderligere sokkel kan blive lavet i enhver krævet form eller størrelse passende til hjælpeudstyret og dettes forbindeisesindretninger, der vil blive forbundet med hjælpesoklen.FIG. 7 shows an alternative embodiment of the connecting means in which parts thereof have the same design as the connecting means of FIG. 1, and thus has the same reference numerals with index b. In this embodiment, the connector is molded to have an integrated extension 50 from the body portion 2b, and an additional socket 51 is formed in this extension. The material 6b of the terminal is extended at 52 to pass through the extension such that a portion 53 thereof lies at the inner end of the additional socket 51. Additional equipment may thus be connected to an input cable 11b at a connection 30 54 in connection with the socket. 51 and a sealing ring 55 may be inserted if necessary. The additional socket may be made in any shape or size required to suit the auxiliary equipment and its connecting devices which will be connected to the auxiliary socket.

35 Fig. 7 viser også en tætningsstikprop 15b, der har en integreret med skruegang på indersiden udformet indsats 15FIG. 7 also shows a sealing plug 15b which has an integrally screwed-in insert designed 15

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56, der kan gå i indgreb med stikproppens studs 14b, og tætningsstikproppen bliver således brugt til at fastgøre stikproppen. Det er klart, at disse to former for fastgøring er indbyrdes udskiftelige. Ydermere kan 5 tætningsstikproppen også indbefatte en skærm 57 og indretninger, hvormed skærmen kan blive forbundet til en neonindikator. Lignende stikpropper kan blive brugt ved andre af de illustrerede udførelsesformer.56, which may engage the plugs 14b of the plug, and thus the sealing plug is used to secure the plug. It is clear that these two types of fastening are interchangeable. Furthermore, the sealing plug may also include a screen 57 and devices by which the screen can be connected to a neon indicator. Similar plugs may be used in other embodiments illustrated.

Fig. 8 til 10 viser alternative udformninger af 10 forbindelsesorganer, og i hvert tilfælde er dele fælles med forbindelsesorganet fra fig. 1 vist med de samme rerefencenumre som i denne figur, men med indeks c, d eller e respektivt for de tre figurer. Forbindelsesorganet vist i fig. 8 er støbt til at have to indad til-15 spidsede sokler 4c og 60, der åbner sig ind i hoveddelen fra den ene ende af denne, og soklen 60 er placeret oven over soklen 4c, hvis skaftet 3c opfattes som liggende ved bunden af forbindelsesorganet. Soklen 60 har en tilknyttet indad tilspidset hjælpesokkel 20 61, og terminalen 6c går gennem huset således, at den adskiller den indre ende af soklen 4c fra den indre ende af soklen 5c, og også den indre ende af soklen 60 fra den indre ende af soklen 61. Ved det sidste område er terminalen udformet med et yderligere hul 25 62, der sørger for et forbindelsespunkt til en yderli gere stikprop, der kan blive indpasset i soklen 60.FIG. Figures 8 to 10 show alternative designs of 10 connecting means, and in each case parts are common to the connecting means of FIG. 1 shown with the same reference numbers as in this figure, but with indexes c, d or e respectively for the three figures. The connector shown in FIG. 8 is molded to have two inwardly pointed sockets 4c and 60 which open into the body from one end thereof, and socket 60 is positioned above socket 4c if the shaft 3c is perceived to lie at the bottom of the connector . The socket 60 has an associated inwardly tapered auxiliary socket 20 61, and the terminal 6c passes through the housing to separate the inner end of the socket 4c from the inner end of the socket 5c, and also the inner end of the socket 60 from the inner end of the socket. 61. At the last area, the terminal is provided with a further hole 25 62 which provides a connection point to a further plug which can be fitted into the socket 60.

Ved udførelsesformen fra fig. 9 er støbningen udvidet til også at indbefatte en anden sokkel 63 liggende ved siden af soklen 4d og gående ind i ho-30 veddelen fra den samme ende som soklen 4d. Også her har den anden sokkel 63 en hertil tilknyttet hjælpesokkel på den samme måde som den første sokkel 4d. Ved denne udførelsesform har materialet af terminalen 6d en tværgående udvidelse 64, der går gennem hoveddelen 35 for at adskille den indre ende af soklen 63 fra den indre ende af dens hjælpesokkel.In the embodiment of FIG. 9, the casting is extended to include another socket 63 adjacent to socket 4d and entering the main part from the same end as socket 4d. Here, too, the second pedestal 63 has an auxiliary pedestal attached thereto in the same manner as the first pedestal 4d. In this embodiment, the material of terminal 6d has a transverse extension 64 passing through the body portion 35 to separate the inner end of the socket 63 from the inner end of its auxiliary socket.

1616

DK 159225 BDK 159225 B

Udførelsesformerne i både fig. 8 og 9 viser forbindelsesorganer, ved hvilke flere udgange kan blive udtaget fra et enkelt udgangskabel eller en enkelt samleskinne .The embodiments of both FIGS. Figures 8 and 9 show connection means by which multiple outputs can be taken out from a single output cable or a single busbar.

5 Fig. 10 viser et lige forbindelsesorgan, hvorved en bøsning optaget i soklen 4e kan blive forbundet til en leder, der er fastgjort til enden 8e af lederen 6e, der går gennem et skaft 3e koaksialt med soklen 4e.FIG. 10 shows a straight connecting means whereby a bushing accommodated in the socket 4e can be connected to a conductor attached to the end 8e of the conductor 6e passing through a shaft 3e coaxially with the socket 4e.

10 Der er installationer, hvor det er nødvendigt at fastgøre mere end ét kabel eller én samleskinne til en enkelt udgang. I sådanne tilfælde kan hvert kabel blive afsluttet med et forbindelsesorgan af enhver passende vist type, og forbindelsesorganerne er opstillet på li-15 nie aksialt. Sådan en opstilling er vist i fig. 11. Hosliggende forbindelsesorganer 70, 71 er efter tur forbundet elektrisk til hinanden ved hjælp af et led 72, der ved hver ende har koniske han-parter 73, 74, der kan blive modtaget i det overfor liggende forbin-20 delsesorgans hjælpesokkel.10 There are installations where it is necessary to attach more than one cable or busbar to a single outlet. In such cases, each cable may be terminated with a connector of any suitably shown type and the connector means arranged axially. Such an arrangement is shown in FIG. 11. Adjacent connectors 70, 71 are in turn electrically connected to each other by means of a joint 72 having at each end conical male portions 73, 74 which may be received in the auxiliary connector of the opposite connector.

Alternativt, som vist i fig. 12, kan et forbindelsesorgan 75 blive støbt til at have en sokkel 76 ved den ene ende og en han-part 77 i den anden ende.Alternatively, as shown in FIG. 12, a connector 75 may be molded to have a socket 76 at one end and a male portion 77 at the other end.

Et kabel 78 er fastgjort til terminalen 79 af dette 25 forbindelsesorgan 75, og et yderligere kabel 80 til terminalen 81 af et forbindelsesorgan 82, der svarer til det i fig. 1 viste. Disse samlinger svarer hver til kabelsamlingen vist i fig. 3. De to forbindelsesorganer 75, 82 er aksialt forbundet på linie, og parten 77 30 indgriber i hjælpesoklen 83 af forbindelsesorganet 82. En tilspidset kredsløbsbøsning 84 modtages i hovedsoklen 85, og en med skruegang udformet bolt 86 går gennem terminalen 81, gennem en ledende muffe 87 i forbindelsesorganet 75, og gennem terminalen 79 35 for at blive fastgjort med møtrikken 88. Soklen 76 af forbindelsesorganet 75 er lukket med en isolerendeA cable 78 is attached to terminal 79 of this connector 75, and a further cable 80 to terminal 81 of connector 82 similar to that of FIG. 1. These joints each correspond to the cable assembly shown in FIG. 3. The two connecting members 75, 82 are axially aligned and the portion 77 30 engages in the auxiliary socket 83 of the connecting member 82. A tapered circuit sleeve 84 is received in the main socket 85 and a threaded bolt 86 passes through the terminal 81 through a conductive sleeve 87 in connector 75 and through terminal 79 35 to be secured with nut 88. Socket 76 of connector 75 is closed with an insulating member.

Claims

A high voltage electrical connector of not less than 3.3 kV and of a kind comprising a housing (1) homogeneously and without electrically conductive shielding material molded from electrically insulating material, comprising a body (2) ) and a shaft (3) protruding therefrom, the main part of which includes an inwardly tapered base (4) extending inwardly from an open end of the housing, and an electrically conductive terminal (6) within the housing, one of which end (7) is similar to the inner end of the base and the other end of which extends into the shaft of the housing, characterized in that the terminal (6) is so molded into the housing (1) that its second end is in intimate contact with the material of the shaft (3), but ends in a conductor connection section (8) outside the housing.

Electrical connector according to claim 1, characterized in that the material of the molded housing has a relative creep index measured in accordance with I.E.C. Standard Publication 112: 1979 of no less than 900 volts, using brass electrodes.

Electrical connector according to claim 1, characterized in that the material of the molded housing is of classification B2.5 according to the inclined creep current test as disclosed in I.E.C. Standard Publication 587: 1977.

Electrical connector according to any one of the preceding claims, characterized in that the material of the molded housing has a dielectric strength measured according to British Standard No. 2782 of not less than 6 kv / mm.

Electrical connector according to any one of the preceding claims, characterized in that the conductor connection section (8) is in the form of a solid end piece with a flat surface, with a hole (10) perpendicular to this surface to receive a bolt (21), by which a connecting tab (17) on a cable (11) can be clamped to the connecting section.

Electrical connector according to any one of claims 1-4, characterized in that the conductor connection section (8) is in the form of a solid end piece (35-figure 5) arranged to receive a coupling bushing (40) fixed to the end of a cable (39). ).

Electrical connector according to any one of claims 1-4, characterized in that the conductor connector section (8) is formed as a deformable pipe piece (8a-fig.4) arranged to receive and hold an end of a cable which plug into this pipe piece.

Electrical connector according to any one of the preceding claims, characterized in that the outer surface of the shaft (3) has at least one radial projection (23) thereon.

Electrical connector according to claim 8, 10, characterized in that the radial projection is a circumferential rib (23) on the shaft.

Electrical connector according to any one of the preceding claims, characterized in that the shaft (3) extends from the main part (2) across the axis of the base.

Electrical connector according to claim 10, characterized in that the terminal is deflected within the body of the housing (Fig. 5) and the exposed part (37) of the terminal enters the socket (33), from the inner part thereof. and is coaxial with the base.

Electrical connector according to any one of claims 1 to 10, characterized in that an auxiliary socket (5) coaxial with the first socket (4) opens into the body part from a second end thereof, and the auxiliary socket has an inner end separated from the inner end of the first plinth at the exposed portion (7) of the terminal.

Electrical connector according to claim 12, characterized in that the exposed part (7) of the terminal is formed with a hole (9) passing through the terminal and coaxial with the sockets (4, 5).

Electrical connector according to claim 12 or 13, characterized in that the connector includes an electrically insulating plug 35 (16) which fits into the auxiliary socket to close its opening. DK 159225B

Electrical connector according to claim 14, characterized in that the plug is formed with a shield (57, Fig. 7) and by means by which the shield can be electrically connected to a neon indicator.

15 It is clear that materials other than those specified can be used. For example, the housing may be molded from a rigid polyurethane elastomer, an EPDM rubber, in silicone rubber,. an epoxy resin or a dough casting material (so-called "dough molding material") such as polyester glass, the material having in each case the electrical and mechanical properties necessary for use with the color sensing means of the invention. The terminal may, instead of being copper, be made of aluminum or other conductive material.

Electrical connector according to claim 12 or 13, characterized in that the auxiliary base (5) has an inwardly tapered shape in the main body of the housing.

Electrical connector according to any one of the preceding claims, characterized in that two or more inwardly tapered bases (4c 60, Fig. 8) open into said end of the main part that the axes of all such bases are parallel and that the conductive terminal (6c) has parts located on the inner end of each socket and exposed to each socket.

Electrical connector according to any one of the preceding claims, characterized in that the housing has an integral extension (50) from the main part (26) and at least one additional socket (51) is formed in the extension and the terminal is extended such that 20, a further portion (53) thereof lies at the inner end of the additional socket (s) (Fig. 7).

An electrical connector according to any one of claims 1-9, characterized in that the other end of the body of the housing is provided with a male conical part (77) which can be inserted into a socket on another coaxially located connector (82). , Fig. 12).

An electrical connection arrangement of the kind including an electrical connector, a plug (12) inserted into the socket (4) of the connector 30 and electrically connected to the terminal (6), and a cable (11) electrically and mechanically connected to the terminal's cable connection section ( 8), characterized in that the connecting means is designed in accordance with any one of the preceding claims.

Arrangement according to claim 20, characterized in that the connection between the cable (1i) and the DK 159225B terminal (6) is protected by an insulating sleeve (22) surrounding the end of the cable and at least part of the end of the shaft. (3) on the house.

Arrangement according to claim 21, characterized in that the sleeve (22) is heat shrunk in place.