Insulator designed to be used as a tensioning element with electrically active part such as threads used to make electric systems and their relevant support. This version is without terminal ring elements and is made with opposing threads (one on the right and one on the left) and the distance of the two rings (maximum opening and minimum closing) is approximately 80 mm. The insulator is made of polyester and polyamide resins reinforced with fiberglass to assure an high mechanical and electrical resistance long lasting. Moreover it is anti-hygroscopic and high self-extinguishing.
