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DE456575C - Spark chimney with fireproof inner layer and insulating outer layer - Google Patents

Spark chimney with fireproof inner layer and insulating outer layer

Info

Publication number
DE456575C
DE456575C DES78234D DES0078234D DE456575C DE 456575 C DE456575 C DE 456575C DE S78234 D DES78234 D DE S78234D DE S0078234 D DES0078234 D DE S0078234D DE 456575 C DE456575 C DE 456575C
Authority
DE
Germany
Prior art keywords
spark
chimney
layer
insulating outer
outer layer
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
DES78234D
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.)
Siemens Schuckertwerke AG
Siemens Corp
Original Assignee
Siemens Schuckertwerke AG
Siemens Corp
Publication date
Priority to DES78234D priority Critical patent/DE456575C/en
Application granted granted Critical
Publication of DE456575C publication Critical patent/DE456575C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate

Landscapes

  • Chimneys And Flues (AREA)

Description

"Funkenkamine, die z. B. zum Schütze von Schaltern an den Öffnungsstellen der Kontakte angeordnet werden, sind gewöhnlich aus Schichten von verschiedenem Material zusammengesetzt. Dabei werden die den Funkenzonen am nächsten liegenden inneren Schichten der Kamine aus möglichst feuerfestem Material gewählt. Die an diese Schichten anstoßenden Schichten liingegen werden aus isolierendem Material hergestellt. Sie dienen einmal dazu, die Schichten aus feuerfestem Material zu tragen, die meistens gegen mechanische Beanspruchung nur wenig widerstandsfähig sind. Außerdem dienen sie aber auch noch zur Verhütung von Kurzschlüssen, indem sie verhindern, daß das feuerfeste Material, das meist sehr hygroskopisch ist, mit spannungsführenden Teilen in· Berührung kommt und zwischen Teilen verschiedenen Piotenjtials Kurzschlüsse einleitet. Diese Anordnung hat aber noch nicht in allen Fällen befriedigt und soll nach der Erfindung weiter verbessert werden. Dies geschieht dadurch, daß die feuerfeste Schicht durch Schlitze unterteilt wird. Damit wird die Isolierung wesentlich verstärkt. Besonders vorteilhaft ist es, die Schlitze nach der Isolierschicht zu zu erweitern, so daß der Oberflächenweg zwischen den Teilplatten noch vergrößert wird."Spark chimneys, which are used, for example, to protect switches at the opening points of the contacts are usually composed of layers of different materials. The inner layers closest to the spark zones are thereby The chimneys are made of the most fireproof material possible. Those adjoining these layers Layers on the other hand are made of insulating Material made. They serve once to make the layers of refractory Wear material that is usually only slightly resistant to mechanical stress are. In addition, they also serve to prevent short circuits by they prevent the refractory material, which is usually very hygroscopic, with live Sharing comes into contact and different Piotenjtials between parts Initiates short circuits. However, this arrangement has not yet been satisfactory in all cases and is to be further improved according to the invention. This happens because the refractory layer is divided by slots. This makes isolation essential reinforced. It is particularly advantageous to widen the slots after the insulating layer, so that the surface path between the sub-plates is still increased.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung veranschaulicht. Diese zeigt in Abb. 1 den ,Querschnitt eines Funkenkamins mit den isolierenden Platten i und den dazwischenliegenden Kontakten k. Innerhalb dieser Platten befinden sich Platten/ aus feuerfestem Material, die durch Schlitze s unterteilt sind. Die Schlitze sind außerdem, wie ersichtlich, nach den isolierenden Platten i zu erweitert, so daß ein verhältnismäßig großer Kriechweg zwischen den feuerfesten Teüplatten geschaffen ist.An embodiment of the invention is illustrated in the drawing. This shows in Fig. 1 the, cross-section of a spark chimney with the insulating plates i and the contacts k between them. Inside these plates there are plates / made of refractory material, which are divided by slots s. The slots are also, as can be seen, widened after the insulating plates i , so that a relatively large creepage distance is created between the refractory part plates.

Claims (2)

Patentansprüche:Patent claims: 1. Funkenkamin mit feuerfester Innenschicht unc] isolierender Außenschicht, dadurch gekennzeichnet, daß die feuerfeste Schicht durch Schlitze unterteilt ist.1. Spark chimney with fireproof inner layer and insulating outer layer, thereby characterized in that the refractory layer is divided by slots. 2. Funkenkamin nach Anspruch 1, dadurch gekennzeichnet, daß die Schlitze in der feuerfesten Schicht nach der Isolierschicht zu erweitert sind.2. spark chimney according to claim 1, characterized in that the slots are expanded in the refractory layer after the insulating layer. *) Von dem Patentsucher ist als der Erfinder angegeben worden:*) The patent seeker stated as the inventor: Dr.-big. Walter Reichel in Berlin-Lanhviti.Dr.-big. Walter Reichel in Berlin-Lanhviti.
DES78234D Spark chimney with fireproof inner layer and insulating outer layer Expired DE456575C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES78234D DE456575C (en) Spark chimney with fireproof inner layer and insulating outer layer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES78234D DE456575C (en) Spark chimney with fireproof inner layer and insulating outer layer

Publications (1)

Publication Number Publication Date
DE456575C true DE456575C (en) 1928-02-28

Family

ID=7507321

Family Applications (1)

Application Number Title Priority Date Filing Date
DES78234D Expired DE456575C (en) Spark chimney with fireproof inner layer and insulating outer layer

Country Status (1)

Country Link
DE (1) DE456575C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1015894B (en) * 1955-11-24 1957-09-19 Siemens Ag Electrical insulating part, preferably in electrical switchgear
DE1138449B (en) * 1959-02-10 1962-10-25 Sachsenwerk Licht & Kraft Ag Electric circuit breaker
DE1151585B (en) * 1959-11-27 1963-07-18 Licentia Gmbh Arc extinguishing chamber
DE1185687B (en) * 1960-02-29 1965-01-21 Licentia Gmbh Circuit breakers with switching chambers delimited by insulating walls

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1015894B (en) * 1955-11-24 1957-09-19 Siemens Ag Electrical insulating part, preferably in electrical switchgear
DE1138449B (en) * 1959-02-10 1962-10-25 Sachsenwerk Licht & Kraft Ag Electric circuit breaker
DE1151585B (en) * 1959-11-27 1963-07-18 Licentia Gmbh Arc extinguishing chamber
DE1185687B (en) * 1960-02-29 1965-01-21 Licentia Gmbh Circuit breakers with switching chambers delimited by insulating walls

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