Wood is classified as an insulator and does not readily conduct electricity, but when wet, wood does have the potential to conduct electricity. Insulators resist the flow of electricity, as stated by the Occupational Safety and Health Administration.
Other examples of insulators are glass, plastic and rubber. As with wood, these insulators slow the flow of electrons from atoms. Insulators are commonly used as protection from electric shock, as they slow the passing current from a conductor and debilitate it from continuing through the insulator. Conductors, on the other hand, have electrons that easily flow from one atom to another, and they can be used to create electricity. Metals like aluminum and copper are common conductors.