DIN EN 62231 VDE 0674-7:2007-07

This standard applies to composite station post insulators consisting of a load bearing cylindrical insulating solid core made of resin impregnated fibers, a housing (outside the insulating solid core) made of elastomer material (e. g. silicone or ethylene-propylene) and end fittings attached to the insulating core. Composite station post insulators covered by this standard are subjected to cantilever, torsion, tension and compression loads. They are intended for substations with a.c. voltages greater than 1000 V up to 245 kV.