Name: ASME TDP-1-2013 PDF - Engineering Standards Download
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ASME TDP-1-2013 – Prevention of Water Damage to Steam Turbines Used for Electric Power Generation: Fossil-Fuel Plants

This Standard includes recommended practices concernedprimarily with the prevention of water damageto steam turbines used for fossil-fuel-fired electric powergeneration. The practices address damage due to water,wet steam, and steam backflow into a steam turbine.The practices are applicable to conventional steam cycle,combined cycle, and cogeneration plants. The practicescover design, operation, inspection, testing, and maintenanceof those aspects of the following power plantsystems and equipment concerned with preventing theinduction of water into steam turbines:

(a) motive steam systems
(b) steam attemperation systems
(c) turbine extraction/admission systems
(d) feedwater heaters
(e) turbine drain system
(f) turbine steam seal system
(g) start-up systems
(h) condenser steam and water dumps
(i) steam generator sources

Any connection to the turbine is a potential source ofwater either by induction from external equipment or byaccumulation of condensed steam. The sources treatedherein specifically are those found to be most frequentlyinvolved in causing damage to turbines. Althoughwaterinduction into the high and intermediate pressure turbineshas historically been recognized as the most damaging,experience has shown that water induction inlow pressure turbines can cause significant damage andshould also be taken seriously.

This Standard is not intended to impose new requirementsretroactively for existing facilities.