Isolator (komponent)
 | Den här artikeln behöver källhänvisningar för att kunna verifieras. (2020-12) Åtgärda genom att lägga till pålitliga källor (gärna som fotnoter). Uppgifter utan källhänvisning kan ifrågasättas och tas bort utan att det behöver diskuteras på diskussionssidan. |
En isolator är en elektroteknisk komponent som förebygger kortslutning och förhindra strömmar mellan elektriska ledningar som står på olika spänningar. Särskilt ska elektrisk isolering skydda människor från att komma i kontakt med farligt höga spänningar.
Moderna isolatorer består oftast av plast eller av keramiska material som porslin eller steatit.
Brun porslinsisolator.
Vit porslinsisolator.
Gröna glasisolatorer.
Blå elektriska isolatorer
Se även
Externa länkar
Wikimedia Commons har media som rör Isolator (komponent).
Media som används på denna webbplats
Question book-4.svg
Författare/Upphovsman: Tkgd2007, Licens: CC BY-SA 3.0
A new incarnation of Image:Question_book-3.svg, which was uploaded by user AzaToth. This file is available on the English version of Wikipedia under the filename en:Image:Question book-new.svg
Författare/Upphovsman: Tkgd2007, Licens: CC BY-SA 3.0
A new incarnation of Image:Question_book-3.svg, which was uploaded by user AzaToth. This file is available on the English version of Wikipedia under the filename en:Image:Question book-new.svg
Tamagaishi.jpg
Egg type compression insulator, used to electrically insulate support cables (guy wires) for utility poles and antenna masts. This design utilizes the superior strength of the ceramic material under compression, as opposed to tension, to support higher loads. Also, if the insulator breaks, the ends of the cable remain attached to each other.
Egg type compression insulator, used to electrically insulate support cables (guy wires) for utility poles and antenna masts. This design utilizes the superior strength of the ceramic material under compression, as opposed to tension, to support higher loads. Also, if the insulator breaks, the ends of the cable remain attached to each other.
.jpg)
Glass Insulators (14356411320).jpg
Författare/Upphovsman: Tony Hisgett from Birmingham, UK, Licens: CC BY 2.0
Glass Insulators
Författare/Upphovsman: Tony Hisgett from Birmingham, UK, Licens: CC BY 2.0
Glass Insulators
Ceramic electric insulator.jpg
Författare/Upphovsman: Hiuppo, Licens: CC BY-SA 2.5
10 kV ceramic pin insulator. This is used for insulating electric power distribution lines where they are supported by utility poles. The insulator mounts on a pin sticking up from the crossarm of the pole. The power line is tied to the top. It is moulded in a series of concentric disk shapes to increase the surface distance (creep length) along the insulator from one end to the other, to reduce surface leakage currents and also reduce the chance of flashover arcs.
Författare/Upphovsman: Hiuppo, Licens: CC BY-SA 2.5
10 kV ceramic pin insulator. This is used for insulating electric power distribution lines where they are supported by utility poles. The insulator mounts on a pin sticking up from the crossarm of the pole. The power line is tied to the top. It is moulded in a series of concentric disk shapes to increase the surface distance (creep length) along the insulator from one end to the other, to reduce surface leakage currents and also reduce the chance of flashover arcs.
Isolator01.jpg
Författare/Upphovsman: The original uploader was P.H. Louw på nederländska Wikipedia., Licens: CC BY 2.5 nl
Isolator
Författare/Upphovsman: The original uploader was P.H. Louw på nederländska Wikipedia., Licens: CC BY 2.5 nl
Isolator