DE7311220U - Insulating piece with built-in spark gap for lightning strikes or the like. - Google Patents
Insulating piece with built-in spark gap for lightning strikes or the like.Info
- Publication number
- DE7311220U DE7311220U DE7311220U DE7311220DU DE7311220U DE 7311220 U DE7311220 U DE 7311220U DE 7311220 U DE7311220 U DE 7311220U DE 7311220D U DE7311220D U DE 7311220DU DE 7311220 U DE7311220 U DE 7311220U
- Authority
- DE
- Germany
- Prior art keywords
- insulating piece
- built
- spark gap
- insulating
- lightning strikes
- 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
- 230000000875 corresponding Effects 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 230000015556 catabolic process Effects 0.000 description 3
- 206010042255 Struck by lightning Diseases 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L25/00—Constructive types of pipe joints not provided for in groups F16L13/00 - F16L23/00 ; Details of pipe joints not otherwise provided for, e.g. electrically conducting or insulating means
- F16L25/02—Electrically insulating joints or couplings
- F16L25/025—Electrically insulating joints or couplings for joints with sleeve or socket
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Insulators (AREA)
- Thermistors And Varistors (AREA)
Description
Die Erfindung bezieht sich auf eine Trennfunkenstrecke am äußeren Teil eines Isolierstückes, welche verhindern soll, daß bei Blitzeinschlag oder dergl. ein Durchschlag im Isolierstück erfolgt,
<NichtLesbar>
zu einer Zerstörung des Dichtwerkstoffes und somit zu einer
<NichtLesbar>
führen könnte.The invention relates to an isolating spark gap on the outer part of an insulating piece, which is intended to prevent a breakdown in the insulating piece in the event of a lightning strike or the like.
<Notreadable>
to a destruction of the sealing material and thus to a
<Notreadable>
could lead.
Isolierstücke in Gasleitungen können durch Blitzeinwirkungen gefährdet sein. Unabhängig davon, ob eine Gebäude-Blitzschutzanlage oder ein Potentialausgleich nach
<NichtLesbar>
in der Abnehmeranlage vorhanden ist oder nicht, kann bei einem Blitzeinschlag in ein Gebäude oder in dessen näherer Umgebung eine hohe kurzzeitige Spannung über dem Isolierstück entstehen, die zu einem Überschlag oder Durchschlag führen kann. Als Folge hiervon fließt ein Teil des Blitzstromes über das Isolierstück. Bei einem inneren oder äußeren Überschlag ist keine Gefährdung zu befürchten. Ein Durchschlag kann jedoch zu mechanischen Schäden oder zu einem teilweisen Verbrennen von elektrisch isolierenden Teilen und damit zum Undichtwerden des Isolierstückes führen.Insulating pieces in gas lines can be endangered by the effects of lightning. Regardless of whether a building lightning protection system or equipotential bonding is required
<Notreadable>
is or is not present in the customer system, a high short-term voltage can arise across the insulating piece in the event of a lightning strike in a building or in its immediate vicinity, which can lead to flashover or breakdown. As a result, part of the lightning current flows through the insulating piece. There is no danger to be feared in the event of an internal or external flashover. However, a breakdown can lead to mechanical damage or to partial burning of electrically insulating parts and thus to the insulating piece becoming leaky.
Der Erfindung liegt die Aufgabe zu Grunde, eine Trennfunkenstrecke zu schaffen, die einen äußeren Überschlag am Isolierstück gewährleistet, ohne dabei die Dichtheit oder die mechanische Festigkeit zu beeinträchtigen.The invention is based on the object of creating an isolating spark gap which ensures an external flashover on the insulating piece without impairing the tightness or mechanical strength.
Diese Aufgabe wird gemäß der Erfindung durch folgende Merkmale gelöst:This object is achieved according to the invention by the following features:
a) Der Isolierring zwischen dem äußeren Rohrmantel und dem inneren Rohr wird mit einer Bohrung versehen, welche derart gehalten ist, daß ein Stromüberschlag erfolgen kann.a) The insulating ring between the outer pipe jacket and the inner pipe is provided with a bore which is held in such a way that a current flashover can occur.
b) Dem äußeren bzw. inneren Rohr wird ein Stift oder ein entsprechendes Metallteil derart angebracht, daß ein Stromüberschlag erfolgen kann.b) A pin or a corresponding metal part is attached to the outer or inner tube in such a way that a current flashover can occur.
Durch diese Kombinationsmerkmale wird erreicht, daß die Isolierung die geforderten elektrischen Widerstände aufweisen, bei einem größeren Stromstoß jedoch an diesen Stellen ein Überschlag erfolgen kann, ohne das Isolierstück in seinen mech. Eigenschaften zu beeinträchtigen.Through these combination features it is achieved that the insulation have the required electrical resistances, but in the event of a larger current surge, a flashover can occur at these points without the insulating piece in its mech. Affect properties.
Claims (2)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE7311220U true DE7311220U (en) | 1974-01-17 |
Family
ID=1291409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE7311220U Expired DE7311220U (en) | Insulating piece with built-in spark gap for lightning strikes or the like. |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE7311220U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0114022A1 (en) * | 1983-01-18 | 1984-07-25 | Georg Walz | Undetachable sealing insulating pipe connection with bridging air gap and method of manufacturing such an insulation pipe connection |
| DE3744416A1 (en) * | 1987-12-29 | 1989-07-20 | Kyburz Hans | Insulating pipe connection |
| DE19757252C2 (en) * | 1997-12-22 | 2003-07-03 | Ulrich Walz | Insulating pipe coupling |
-
0
- DE DE7311220U patent/DE7311220U/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0114022A1 (en) * | 1983-01-18 | 1984-07-25 | Georg Walz | Undetachable sealing insulating pipe connection with bridging air gap and method of manufacturing such an insulation pipe connection |
| DE3744416A1 (en) * | 1987-12-29 | 1989-07-20 | Kyburz Hans | Insulating pipe connection |
| DE19757252C2 (en) * | 1997-12-22 | 2003-07-03 | Ulrich Walz | Insulating pipe coupling |
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