Aboutcleggsan Expertise All technical areas of Electronics Engineering.
Experience BSEE, MBA, Design, R&D, University Research.
Senior Life Member of IEEE. Life Fellow of AES.
Organizations IEEE, Consumer Electronics Society, Audio Engineering Society.
Broad teaching experience; work experience mostly in consumer electronics and conversion from analog to digital technologies. Pioneer in digital audio at all levels.
Question Dear Mrs Cleggsan,
I would like to know the mechanisms about how the insulator for cables at high voltages broke down when there is a short circuit occuring.
Thanks a lot
Yours sincerely
Diren
Try studying the above. Does that answer your question?
The breakdown voltage of any material occurs when the electric field is sufficiently high to cause conduction.
If two lines are running side by side and they have similar voltages but are different phase, for example, and then one of them gets shorted to ground it places a full voltage across the two lines and this is now sufficient to overcome the breakdown point of the insulation.
