No way has this thing got anything whatsoever to do with electricity
simply a case of the half educated imposing their 21 century ideas onto an ancient art work..
It is a picture of a person holding a fan shaped object that appears to be connected to a lotus flower..
the central "filament" is a snake.
I feel that the fan shaped object is in effect an artistic rendition of the projection of the snake.. or the 'meaning' of the snake..
Rather like modern "cartoon speech bubbles"