BS EN 62231:2006 – Composite station post insulators for substations with a.c. voltages greater than 1 000 V up to 245 kV – Definitions, test methods and acceptance criteria
1 Scope and object This International Standard applies to composite station post insulators consisting of a load bearing cylindrical insulating solid core made of resin impregnated fibres, 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 1 000 V up to 245 kV. The object of this standard is
to define the terms used,
to prescribe test methods,
to prescribe acceptance or failure criteria. This standard does not include requirements dealing with the choice of insulators for specific operating conditions.
2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
IEC 60050-471, International Electrotechnical Vocabulary (IEV) – Chapter 471: Insulators
IEC 60060-1, High-voltage test techniques – Part 1: General definitions and test requirements
IEC 60168:1994, Tests on indoor and outdoor post insulators of ceramic material or glass for systems with nominal voltages greater than 1 000 V
IEC 62217, Polymeric insulators for indoor and outdoor use with a nominal voltage greater than 1000 V – General definitions, test methods and acceptance criteria
ISO 1101, Technical drawings – Geometrical tolerancing – Tolerancing of form, orientation,location and run-out – Generalities, definitions, symbols, indications on drawings
ISO 3452, Non-destructive testing – Penetrant inspection – General principles
BS EN 62231:2006 – Composite station post insulators for substations with a.c. voltages greater than 1 000 V up to 245 kV – Definitions, test methods and acceptance criteria