This standard specifies the content, methods and requirements for acceptance testing of distributed control systems (DCS) in thermal power plants. This standard is applicable to the acceptance test of DCS at all stages of new construction projects of thermal power plants with a single unit capacity of 125MW to 600MW. It is applicable to DCS for technical transformation projects or DCS composed of programmable controllers (PLC), as well as for DCS used in technical transformation projects. Acceptance testing of other microprocessor-based control systems of DEH (MEH). The acceptance test of DCS of other capacity units and the acceptance test after major DCS overhaul of the unit can also be carried out by reference.
DL/T 659-2006 Referenced Document
DL/T 5190.5 The specification of erection and acceptance of electric power constrution Part 5:Section of instrumentation and control(explanation)
DL/T 701 Terminology of Thermal Automation in Thermal Power Plants*, 2022-05-13 Update
DL/T 774 Overhaul & maintenance code of I&C system in thermal power plant*, 2015-07-01 Update
DL/T 659-2006 history
2016DL/T 659-2016 Acceptance test procedure for decentralized control system in thermal power plant
2006DL/T 659-2006 Code for acceptance test of distributed control system in fossil fuel power plant
1998DL/T 659-1998 Code for on-line acceptance test of distributed control system in fossil fuel power plant