ČSN EN 62772   (348123) Kompozitní duté izolátory umístěné v rozvodnách se střídavým napětím vyšším než 1000 V a stejnosměrným napětím vyšším než 1500 V - Definice, zkušební metody a kritéria přijetí

Anotace textu normy ČSN EN 62772   (348123)

This International Standard applies to composite hollow core station post insulators consisting of a load-bearing insulating tube (core) made of resin impregnated fibres an insulating filler material (e.g. solid, liquid, foam, gaseous - pressurized or unpressurized), a housing (outside the insulating tube) made of polymeric material (for example silicone or ethylene-propylene) and metal fixing devices at the ends of the insulating tube. Composite hollow core station post insulators as defined in this standard are intended for general use in substations in both, outdoor and indoor environments, operating with a rated AC voltage greater than 1 000 V and a frequency not greater than 100 Hz or for use in direct current systems with a rated voltage greater than 1 500 V.