Insulators for High Voltage switch gears: a new approach for estimating the testing pressure


The partners


Scope of Work
Development of innovative methods for estimating the minimum pressure of tests on prototypes of insulators.

At a glance
According to Italian national legislation, the introduction of a new isolator requires specific approval tests. Among them, pressurization tests until rupture. For fiberglass insulators, the calculation of the minimum test pressure is heavily affected by the high variability of the composite material and of the manufacturing process of each producer. INAIL and ASTARTE undertook a research project to develop a new approach to determine resistance requirements. This is based on laboratory testing on material samples and finite element analysis technologies.

The project is developing a procedure to estimate the minimum test pressure. It bases on data easily achiavable through lab testing on material samples.