DE664821C - Aqueous extinguishing fluid for expansion switch - Google Patents
Aqueous extinguishing fluid for expansion switchInfo
- Publication number
- DE664821C DE664821C DES114731D DES0114731D DE664821C DE 664821 C DE664821 C DE 664821C DE S114731 D DES114731 D DE S114731D DE S0114731 D DES0114731 D DE S0114731D DE 664821 C DE664821 C DE 664821C
- Authority
- DE
- Germany
- Prior art keywords
- extinguishing liquid
- liquid according
- additive
- extinguishing fluid
- expansion switch
- 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
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/22—Selection of fluids for arc-extinguishing
Landscapes
- Agricultural Chemicals And Associated Chemicals (AREA)
Description
Wäßrige Löschflüssigkeit für Expansionsschalter Bei Verwendung organischer Isolierstoffe in den Kammern von Expansionsschaltern, bei denen als Löschflüssigkeit Wasser oder ähnliche, hauptsächlich Wasser enthaltende Mischungen mit anderen Stoffen verwendet werden, beobachtet man gelegentlich das Auftreten von Schimmelpilzen.. Es ist bekannt, daß diese Pilze nur leben können, wenn ihnen ein geeigneter Nährboden z. B. in Form von Kohlehydraten zur Verfügung steht. Es ist nun nicht immer möglich, das Wuchern der Schimmelpilze durch völlige Beseitigung der Nährstoffe zu verhindern, oder es ist in manchen Fällen nicht wirtschaftlich, einen völlig nährstofffreien Zustand der Isolierstoffe bei der Herstellung zu erreichen.Aqueous extinguishing liquid for expansion switches When using organic Insulating materials in the chambers of expansion switches, which are used as extinguishing fluids Water or similar mixtures with other substances, mainly containing water are used, the occurrence of molds is occasionally observed. It is known that these fungi can only live if they have a suitable breeding ground z. B. is available in the form of carbohydrates. It is not always possible now to prevent the growth of mold by completely eliminating the nutrients, or in some cases it is not economical to have a completely nutrient-free one To achieve the condition of the insulating materials during manufacture.
Nach der Erfindung kann die Schimmelbildung dadurch verhindert werden, daß man den Nährboden in geeigneter Weise vergiftet und damit dem Pilz die Lebensbedingungen entzieht. Das geschieht durch einen Zusatz von Giftstoffen zur Löschflüssigkeit, z. B. Antiseptika, wie Phenole und Aldehyde. Es versteht sich von selbst, daß nur solche Giftstoffe zur Anwendung kommen dürfen, die weder die Isolierstoffe selbst noch andere Schalterteile, mit denen die Löschflüssigkeit in Berührung kommt, angreifen und die Leitfähigkeit der Löschflüssigkeit nicht heraufsetzen. Für den Zusatz eignen sich besonders solche Giftstoffe, die selbst in konzentrierter Form kein nennenswertes Leitvermögen b@esitzen. Von besonderem Vorteil ist es, wenn die Anwesenheit des Giftstoffes an dem Geruch oder an der Färbung der Löschflüssigkeit erkennbar ist.According to the invention, the formation of mold can be prevented by that one poisons the nutrient medium in a suitable manner and thus the living conditions of the fungus withdraws. This is done by adding toxins to the extinguishing liquid, z. B. Antiseptics such as phenols and aldehydes. It goes without saying that only such toxins may be used that neither the insulating materials themselves attack other parts of the switch with which the extinguishing liquid comes into contact and do not increase the conductivity of the extinguishing liquid. Suitable for addition especially those toxins which, even in concentrated form, are not worth mentioning Conductivity b @ es sit. It is particularly advantageous if the presence of the Toxic substance can be recognized by the smell or the color of the extinguishing liquid.
Nach der weiteren Erfindung wird als Zusatzstoff Phenol verwendet, und zwar im Zusatzverhältnis von i % der Löschflüssigkeit. Diese Menge genügt, wie durch Versuche festgestellt wurde, um die Schimmelbildung völlig zu unterbinden. Ebenso wäre ein Zusatz von Formaldehyd brauchbar.According to the further invention, phenol is used as an additive, in an additional ratio of i% of the extinguishing liquid. This amount is enough how has been established through tests to completely prevent the formation of mold. An addition of formaldehyde would also be useful.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES114731D DE664821C (en) | 1934-07-15 | 1934-07-15 | Aqueous extinguishing fluid for expansion switch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES114731D DE664821C (en) | 1934-07-15 | 1934-07-15 | Aqueous extinguishing fluid for expansion switch |
Publications (1)
Publication Number | Publication Date |
---|---|
DE664821C true DE664821C (en) | 1938-09-12 |
Family
ID=7533343
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES114731D Expired DE664821C (en) | 1934-07-15 | 1934-07-15 | Aqueous extinguishing fluid for expansion switch |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE664821C (en) |
-
1934
- 1934-07-15 DE DES114731D patent/DE664821C/en not_active Expired
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