Balestro polymeric insulators IPB series are produced for use in electrical power distribution suspension or dead end instalation, replacing the conventional porcelain or glass chains. Polymeric insulators are produced initially from a fiberglass rod (core) which is fixed to the connection tools (clevis and tongue type in special hot-galvanized iron alloy) and later the insulating envelope (in silicone rubber) is applied on this set, resulting in a compact, light insulator of great mechanical resistence and highly resistant to weather conditions.

The main advantage with the use of polymeric Balestro insulators of the IPB series are:

•   Compact dimensions, resulting in insulator which are lighter than
    the conventional ones, reducing the cost of structures, transport and warehosing,
    as well as labour for installation and so on;
•   Immunity to vandalism;
•   Highly resistant to traction;
•   Excellent performance in bad weather, especially in highly polluted environments,
    thanks to the peculiar characteristic of the silicone envelope system, such as
    hydrophobicity, which ensures high superficial resistance to the insulator ever under
    rainy conditions, avoiding the forming of continuos water films, dry channels and
    arcs on the surface of the insulator, which reduces the risk of flashover. This
    characteristic of the silicone is transferred to possible deposits of solid pollutants
    on the surface of the insulator, maintaining hydrophobicity even under polluting
    conditions
•   High resistence to electrical tracking and erosion, and also to the proliferation of
    fungus;
•   Moulded in a single piece, ensuring excellent hermethicity and preventing water or
    moisture ingress inside the insulators.