1 Scope
This Part in DL/T 5210 specifies the construction quality acceptance standard for site-processed and -prepared products and relevant requirements of individual project, individual unit, and overall project quality evaluations for erection engineering of thermal power generation.
This Part is applicable to the construction quality acceptance and project evaluation of site-processed and -prepared products for constructed, extended and renovated thermal power generation with unit capacity 300MW~1000MW. The construction quality acceptance and project evaluation of site-processed and -prepared products for thermal power generation with unit capacity below 300MW may comply with this Part by reference.
2 Normative References
The following normative documents contain provisions which, through reference in this text, constitute provisions of this Part. For dated reference, subsequent amendments (excluding correction to) to, or revisions of, any of these publications do not apply. However, parties to agreements based on this Part are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. For undated references, the latest editions of the normative documents are applicable to this part.
GB/T 3 Run-outs, undercuts and chamfers for general purpose metric screw threads
GB/T 197-2003 General purpose metric screw threads - Tolerances
GB/T 1800.1-2009 Geometrical product specifications (GPS) - Limits and fits - Part 1: Bases of tolerances, deviations and fits
CB/T 1804-2000 General Tolerances - Tolerances for Linear and Angular Dimensions without Individual Tolerance Indications
GB/T 12362.1 Tolerances and machining - Allowances of steel die forging
GB/T 21469 Machining allowances and tolerances for steel open die forgings on hammer - General requirement
GB/T 21470 Machining allowances and tolerances for steel open die forgings on hammer - Disks, columns, rings, and seamless cylindrical sleeves
GB/T 21471 Machining allowances and tolerances for steel open die forgings on hammer - Shafts
GB/T 50375 Evaluating standard for excellent quality of building engineering
DL/T 515-2004 Pipe Bends for Power Station
DL/T 869 The code of welding for power plant
DL/T 5161.1~5161.17 Specification for construction quality checkout and evaluation of electric equipment installation
3 General Provisions
3.0.1 This standard is formulated with a view to intensifying construction engineering quality control in electric power industry, improving construction quality level, and unifying the relevant requirements in construction quality acceptance standard and evaluation for thermal power generation engineering.
3.0.2 The construction quality acceptance for thermal power generation project shall be conducted by inspection batch, subitem, subsection, and subsystem. The construction quality acceptance is only applied with a quality grade "qualified"; in case of any nonconformity, it shall comply with Article 4.1.11 in this Part.
3.0.3 The engineering quality evaluation shall be conducted for the projects with the "high quality" title.
3.0.4 The engineering quality evaluation shall be conducted by the three phases (stage) - individual project, individual unit and overall project.
3.0.5 The construction quality evaluation for individual project shall be conducted upon that the construction quality acceptance for all subsystems is qualified and the collection and rearrangement of engineering technical document is completed, and the evaluation shall cover the whole work content before 168-h trial operation with full load.
3.0.6 The quality evaluation for individual unit shall be conducted after the construction quality acceptance for all individual projects and the 168-h trial operation of the unit with full load are completed and the environmental protection projects supported are normally put into operation. The synergic system shall be bought into the evaluation for the first unit.
3.0.7 The quality evaluation for overall project shall be conducted after the quality evaluation for all individual units, the performance tests of the units and the engineering archives evaluation are completed.
1 Scope
2 Normative Reference
3 General Principles
4 Construction quality acceptance
4.1 Requirements in construction quality acceptance
4.2 Division Of Construction Quality Acceptance Range And General Tables
4.3 Machined part and forging
4.4 Fume, air, pulverized coal pipes and its spare parts
4.5 Steam, Water Pipes and Other Parts
4.6 Steel Welded Atmospheric Pressure Vessels
4.7 Metal Members
4.8 Others
5 Quality Evaluation of Single Project
5.1 Basic Requirements
5.2 Evaluation Provisions
5.3 Evaluation Content
5.4 Evaluation Methods
5.5 Quality Evaluation of Process Preparation Engineering
5.6 Evaluation Score Summary of Single Project
5.7 Report of Single Project Quality Evaluation
6 Quality Evaluation of Single Unit
7 Overall Project Quality Evaluation
Annex A (Normative) Methods on Observation of Tank Foundation Settlement
Annex B (Normative) Criteria on the Undermost Derusting Grade Required by Various Base Paints and Anti-rusting Paints as well as on Derusting Grade Classification
