UNE-EN IEC 62772:2023

This International Standard applies to composite hollow core station post insulators consisting

of a load-bearing insulating tube (core) made of resin impregnated fibres, insulating filler

material (solid, liquid, gaseous pressurized or unpressurized), a housing (outside the

insulating tube) made of polymeric material (for example silicone or ethylene-propylene) and

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 a.c. and a

frequency not greater than 100 Hz or for use in direct current systems with a rated voltage

greater than 1 500 V.d.c.

The object of this standard is:

to define the terms used;

to prescribe test methods;

to prescribe acceptance criteria.

All the tests in this standard, apart from the thermal-mechanical test, are performed at normal

ambient temperature. This standard does not prescribe tests that are characteristic of the

apparatus of which the composite hollow core station post insulator ultimately may form a part

(e.g. disconnector switch, reactor support, HVDC valves).