适用范围：This code is applicable to the following newly constructed，enlarged and altered buildings：1 Factory buildings；2 Storages；3 Civil buildings；4 Class A，B，C liquid tanks（tank farms）；5 Combustible and combustion-supporting gas tanks（tank farms）；6 Stackyards for combustibles；7 Urban road tunnels.

适用范围：This code is applicable to the acceptance of new，modified and expanded ground and rooftop photovoltaic power projects connected to power grid with an rated voltage of 380V or above，it is not applicable to BIPV（Building Integrated Photovoltaic）and household PV projects.

适用范围：This specification is applicable to the design of detection and alarm of combustible gases and toxic gases in grass-root，expansion and revamping projects of petrochemical enterprises.

适用范围：This code applies to construction，extension，and renovation of substations rated 35kV-110kV with unit capacity of transformer equal to or above 5000kV·A.

适用范围：This code applies to the design of newly built and expanded 3-110kV HV switchgear.

适用范围：This Code is applicable to the design of construction,extension and renovation of pipe extrusion engineering.

适用范围：This code is applicable to construction，expansion and renovation of the converter gas cleaning and recovery project.

适用范围：This code applies for finishing process design of new plate mill,revamping and expanding of plate mill,hot rolled wide steel strip mill and cold rolled wide steel strip mill.

适用范围：This code is applicable to the design of fossil fired power plants that are operated at an ultra high or above initial steam pressure,installed with single unit capacity of 125MW or above,operating at direct combustion mode and burning solid fossil fuels.

适用范围：This standard is applicable to the installation acceptance of metallurgical machinery ironmaking equipment engineering for blast furnace and smelting reduction (COREX) furnace with a volume of 1000m3 or above.