DL/T 679-2012 (English Version) PDF

Scope: This standard specifies the technical assessment methods for welders in the production, installation, maintenance and transformation of power generation and power supply equipment in the power industry. This standard applies to electrode arc welding (SMAW), tungsten arc welding (TIG), melting electrode (solid and flux core) gas shielded welding (GMAW, FCAW), gas welding (OFW), submerged arc welding (SAW), etc. Welding method. The welder technical assessment for other welding methods can refer to this procedure and other professional standards to formulate assessment content.

DL/T 679-2012 Referenced Document

DL/T 1097 Welding Technology of Condenser Tube Sheet in Thermal Power Plant
DL/T 754 Code of the welding technique for bus*， 2013-03-07 Update
DL/T 821 Radiographic Inspection Technology and Quality Grading of Metal Fusion Welded Butt Joints*， 2017-11-15 Update
DL/T 868 Qualification standard for welding procedures*， 2014-03-18 Update
DL/T 869 Welding Technical Regulations for Thermal Power Plants
GB/T 2653 Bend test methods on welded joints
GB/T 985.1 Recommended joint preparation for gas welding,manual metal arc welding,gas-shield arc welding and beam welding
GB/T 985.2 Recommended joint preparation for submerged arc welding