A polymeric insulator consists of a fiberglass core rod covered by rubber housing and climate-sheds of polymer such as silicone rubber, polytetrafluoroethylene, EPDM and equipped with metal end fittings. Polymers, occasionally called composite insulators, are produced of at least two insulating components — a core and housing equipped with f…[Read more]

Several of the EC&M insulators in collection right now have been employed in telegraph and electric lines in the mining fields in Nevada, California, Arizona, Utah, and as far as British Columbia in Canada. We call this style CD 127.1 and with the W.U.P. massive marking it has about a $2000 worth in basic aqua and over $5000 for the uncommon blue…[Read more]