DE696142C - Insulator, especially solid core insulator, with metal caps fastened through - Google Patents

Insulator, especially solid core insulator, with metal caps fastened through

Info

Publication number
DE696142C
DE696142C DE1936P0073257 DEP0073257D DE696142C DE 696142 C DE696142 C DE 696142C DE 1936P0073257 DE1936P0073257 DE 1936P0073257 DE P0073257 D DEP0073257 D DE P0073257D DE 696142 C DE696142 C DE 696142C
Authority
DE
Germany
Prior art keywords
insulator
solid core
metal caps
especially solid
cap
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
Application number
DE1936P0073257
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE1936P0073257 priority Critical patent/DE696142C/en
Application granted granted Critical
Publication of DE696142C publication Critical patent/DE696142C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00Insulators or insulating bodies characterised by their form
    • H01B17/38Fittings, e.g. caps; Fastenings therefor
    • H01B17/40Cementless fittings

Landscapes

  • Insulating Bodies (AREA)

Description

Isolator; insbesondere Vollkernisolator, mit"durch Aufschrumpfen auf die geschliffenen Isolatorenden #efes@ Metallkappen Beim Aufschrumpfen metallischer Kappen auf keramische Isolatoren,- insbesondere Vollkernisolatoren, ist die am Kappenrand liegende Stelle des Isolatorenscherbens besonders gefährdet, weil an dieser Stelle ein plötzlicher Sprung in der mechanischen Beanspruchung des Scherbens auftritt. Nach der Erfindung wird die Wandstärke der metallischen Kappe an ihrem Rande geschwächt, so daß die beim Aufschrumpfen und auch während des Betriebes an- dieser Stelle auf den Isol.atorscherben ausgeübten mechanischen Bean-@ spruchungen durch die Nachgiebigkeit des geschwächten Kappenrändes gemildert werden. Um den so geschwächten Kappenrand und den Isolator selbst an der Einspannstelle gegen die Wirkungen eines Überschlaglichtbogens zu schützen, wird weiter erfindungsgemäß die metallische Kappe mit einem etwas vorspringenden Ringwulst versehen, der den Kappenrand gleichachsig umgibt. Ein Überschlaglichtbogen findet seinen Fußpunkt an diesem Ringwulst, wodurch der dünne Kappenrandselbst -vor den Hitzewirkungen des Lichtbogens geschützt bleibt.Insulator; in particular full core insulator, with "by shrinking on the ground insulator ends # efes @ metal caps When shrinking on metallic Caps on ceramic insulators, especially solid core insulators, is the one on the edge of the cap The lying point of the insulator body is particularly at risk because at this point a sudden jump in the mechanical stress on the body occurs. According to the invention, the wall thickness of the metallic cap is weakened at its edge, so that when shrinking on and also during operation at this point the mechanical stresses exerted on the isolator shards due to the resilience of the weakened cap edge can be alleviated. Around the weakened edge of the cap and the insulator itself at the clamping point against the effects of a flashover arc to protect, according to the invention, the metallic cap with a slightly protruding Provided annular bead, which surrounds the cap edge equiaxially. A flashover arc finds its base at this annular bead, whereby the thin cap rim itself-before remains protected from the heat effects of the arc.

Es ist zwar schon bekannt, auf Isolierkörper aufzuschrumpfende metallische Kappen ohne konzentrischen Wulst möglichst dünnwandig zu halten. Jedoch ist dies nicht aus dem Gründe geschehen, um die beim Aufschrumpfen und auch während des Betriebes an dieser Stelle auf den Isolatorscherben ausgeübten mechanischen Beanspruchungen zu mildern.It is already known to shrink metallic ones onto insulating bodies To keep caps without a concentric bead as thin-walled as possible. However this is not for the reason that the shrinking on and also during operation mechanical stresses exerted on the insulator shards at this point to mitigate.

Weiter sind aus dünnem Blech gepreßte Metallkappen mit verrundetem Rand für Stützisolatoren u. dgl. bekanntgeworden; die ,auf den Enden der Isolierkörper befestigt werden oder diese mit federnden Ansätzen umgreifen. Im letzteren Falle wird über der unmittelbar auf dem kegeligen Kopf des Isolators aufsitzenden Stahlblechkappe eine äußere Kappe angeordnet, die mit dem hohlkegeligen Teil ihres Randes gegen die Schlaufen der Federansätze drückt und so die Federkappe gegen den Isolatorkopf preßt. Es handelt sich dabei. also nicht um aufgeschrumpfte Kappen .gemäß der Erfindung.Next are pressed metal caps with rounded edges from thin sheet metal Edge for post insulators and the like became known; the, on the ends of the insulating body be attached or encompass these with resilient approaches. In the latter case is placed over the sheet steel cap that rests directly on the conical head of the insulator an outer cap arranged with the hollow conical part of its edge against the loops of the spring attachments presses and so the spring cap against the insulator head presses. These are. So not to shrink-on caps .according to the invention.

In der Abbildung ist als Beispiel eine Ausführungsform der neuartigen Kappenbefestigung an einem Vollkern-(Motor-)Isolator dargestellt. Auf die zweckmäßig, z. B. zylindrisch, geschliffenen Enden des Isolators io sind die Kappen I i und 12 aufgeschrumpft, deren Wandstärke nach ihrem Rande zu geschwächt ist. Den Kappenrand umgibt ein vorspringender Wulst 13 zum Schutz gegen Lichtbogenangriffe.In the figure, as an example, is an embodiment of the novel Cap attachment shown on a solid core (motor) isolator. On the functional, z. B. cylindrical, ground ends of the insulator io are the caps I and i 12 shrunk, the wall thickness of which is too weakened after its edge. The edge of the cap surrounds a projecting bead 13 for protection against arcing attacks.

Claims (1)

PATENTANSPRUCII: Isolator, insbesondere Vollkernisolator, mit durch Aufschrumpfen auf die geschliffenen Isolatorenden befestigten Metallkappen, dadurch gekennzeichnet, daß der Rand der Kappen so weit geschwächt, daß die durch ihn auf den Isolatorkörper ausgeübten mechanischen Beanspruchungen durch seine Nachgiebigkeit gemildert werden, und zum Schutz gegen Lichtbogenangriffe von einem über ihn. hinausragenden ringförmigen Wulst umgeben ist.PATENT CLAIM: Insulator, especially solid core insulator, with through Metal caps attached by shrinking onto the ground insulator ends, thereby characterized in that the edge of the caps is weakened so far that the through it on mechanical stresses exerted on the insulator body due to its flexibility to be mitigated, and to protect against arcing attacks by one over him. protruding annular bead is surrounded.
DE1936P0073257 1936-05-24 1936-05-24 Insulator, especially solid core insulator, with metal caps fastened through Expired DE696142C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1936P0073257 DE696142C (en) 1936-05-24 1936-05-24 Insulator, especially solid core insulator, with metal caps fastened through

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1936P0073257 DE696142C (en) 1936-05-24 1936-05-24 Insulator, especially solid core insulator, with metal caps fastened through

Publications (1)

Publication Number Publication Date
DE696142C true DE696142C (en) 1940-09-14

Family

ID=7392264

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1936P0073257 Expired DE696142C (en) 1936-05-24 1936-05-24 Insulator, especially solid core insulator, with metal caps fastened through

Country Status (1)

Country Link
DE (1) DE696142C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0688025A3 (en) * 1994-06-17 1996-01-10 Hoechst Ceram Tec Ag

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0688025A3 (en) * 1994-06-17 1996-01-10 Hoechst Ceram Tec Ag

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