This standard specifies the items, periods and requirements of preventive tests for various electric power equipment, in order to judge whether the equipment meets the operating conditions, to prevent equipment damage and ensure safety operation.
This standard is applicable to 500kV or below AC electric power equipment.
This standard is not applicable to high-voltage DC transmission equipment, electric power equipment for mine and used under other special conditions, as well as electrical equipment and safety appliances such as protective relay device, automatic device and measuring device of electric power systems.
The equipment imported from abroad shall be implemented by reference to this standard based on the product standard of this equipment.
2 Normative References
The following documents contain provisions which, through reference in this text, constitute provisions of this standard. At the time of publication, the editions indicated are valid. All standards are subject to revision, and parties using the standard shall investigate the possibility of applying the latest edition of the standards indicated below.
