Isolantite heavy duty suspension insulators are used for applications in which large mechanical loads are encountered in high voltage antenna assemblies. They provide a long insulating path between the metal fittings to protect against electrical leakage and flashover. A wide range of sizes and strengths are available. Greater strengths and leakage lengths are attainable by combining insulators into assemblies. The ceramic is available in a clear or brown glaze finish with permanent marking as an option.
Metal end caps can be supplied as a single or double loop in manganese, silicon, or aluminum bronze, anodized aluminum, stainless steel or galvanized malleable iron.
Corrugated insulators can be designed to provide a longer leakage distance.