2 Normative References
The following normative documents contain provisions which，through reference in this text，constitute provisions of this national standard.For dated references，subsequent amendments（excluding the corrigendacontents）to，or revisions of，any of these publications do not apply.However，parties to agreements based on this standard 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 referred are applicable to this Part.
GB 1231—2006 Specifications of high strength bolts with large hexagon head，large hexagonal nuts，plain washers for steel structures
GB 3632—2008 Sets of torshear type high strength bolt hexagon nut and plain washer for steel structures
GB 50205—2001 Code for acceptance of construction quality of steel structures
GB/T 50375—2006 Evaluating standard for construction quality of building engineering
GB 8918—2006 Steel wire ropes for important purposes
DL 612—1996 Supervision code for boiler and pressure vessel of the power industry
DL 647—2004 Inspection code for boiler and pressure vessel in thermal power plants
DL/T 776—2001 Technical requirements for insulation material of thermal power plants
DL/T 777—2001 Technical requirements for boiler refractory of thermal power plants
DL/T 869—2004 Code of welding for thermal power plants
DL/T 902—2004 Technical requirements and test methods of abrasion resistant refractory material
DL 5000—2000 Technical code for designing fossil fuel power plants
DL 5009.1—2002 Code of safety operation in power engineering construction-Part 1：Steam power plants
DL 5011—1992 Code of erection and acceptance of electric power construction-section of steam turbine set
DL 5031—1994 Code of erection and acceptance for electric power construction-piping section
DL/T 5047—1995 Code of erection and acceptance of electric power construction-section of steam boiler set
DL/T 5190.4—2004 Code of erection and acceptance of electric power construction-Part 4：Chemistry for fossil fuel power plants
DL/T 5161—2002 Electric equipment installation engineering
JGJ 82—1991 Code of design，construction and acceptance of high strength bolt connection for steel structures
TSG R0004—2009 Supervision regulation on safety technology for stationary pressure vessel