China Electricity Industry Standard DL/T 939-2005 Technical Guidelines for Supervised Inspection of Boiler Heat Transfer Tube in Thermal Power Plants

Author: National Development and Reform Commission
Publisher:
Publish Date: 2005-05-01
Features: This standard was formulated in accordance with the arrangements of the former State Economic and Trade Commission's "Notice on Confirming the Plan for the Development and Revision of Power Industry Standards in 1999."
This standard specifies the content and technical requirements for supervision and inspection during the equipment manufacturing, installation, and in-service stages for water-cooled walls, superheaters, reheaters, and economizer tubes in thermal power plant boilers.
This standard applies to power station boilers with a rated steam pressure of not less than 9.8 MPa. Power station boilers with a rated steam pressure less than 9.8 MPa may refer to this standard for implementation.