The materials used for electrical insulation are numerous and of the most diverse nature, including the majority of non-metallic substances. There is no definite dividing-line between conducting and Found on http://www.probertencyclopaedia.com/browse/GI.HTM
The materials used for electrical insulation are numerous and of the most diverse nature, including the majority of non-metallic substances. There is no definite dividing-line between conducting and