2010DL/T 5004-2010 Guide for furnishing test apparatus,maintenance device and architectural area of fossil fuel power plant
2004DL/T 5004-2004 Design standard of I&C laboratory for fossil power plant
2000DL/T 5120-2000 DC System design code for small electric power project
DL/T 5120-2000 DC System design code for small electric power project was changed to DL/T 5004-2004 Design standard of I&C laboratory for fossil power plant.
DL/T 5120-2000 DC System design code for small electric power project was changed to DL/T 5044-2014 Technical code for design of DC auxiliary power supply system for power engineering.