UNE 21138:1985

ENSAYOS DE AISLADORES DE APOYO DE INTERIOR DE MATERIA ORGANICA PARA INSTALACIONES DE TENSION NOMINAL SUPERIOR A 1 000 V E INFERIOR A 300 KV

TESTS ON INDOOR POST INSULATORS OF ORGANIC MATERIAL FOR SYSTEMS WITH NOMINAL VOLTAGES GREATER THAN 1 000 V UP TO BUT NOT INCLUDING 300 KV.