This photo of an "NS 18 A" (HC 18 A) CD 522.5 insulator is from the Lviv Insulator Company's website, located here: http://www.energyglass.com.ua/ua/?topic=nomenclature You may have to click and drag the entire URL for this to work properly. The Cyrillic letters read "HC 18 A" [IFONA CD 522.5] |