2019DL 5190.4-2019 Construction Technical Specifications for Electric Power Construction Part 4: Thermal Instruments and Control Devices
2012DL 5190.4-2012 Technical specification for thermal power erection and construction - Part 4: Instrumentation and control
2004DL/T 5190.5-2004 The Specification of erection and acceptance of electric power construction Part 5: Section of instrumentation and control
DL 5190.4-2012 Technical specification for thermal power erection and construction - Part 4: Instrumentation and control has been changed from DL/T 5190.5-2004 The Specification of erection and acceptance of electric power construction Part 5: Section of instrumentation and control.