IEC/TC 5 - Steam Turbines

This part of IEC 60953 establishes a Supplementary Standard (SS) for thermal verification tests of retrofitted steam turbines. The rules given in this SS follow the guidance given in IEC 60953-0, hereinafter called the Reference Standard (RS) but contain amendments and supplements regarding guarantees and verification of the guarantees by thermal acceptance tests on retrofitted steam turbines. General principles for the preparation, performance, evaluation, comparison with guaranteed values and the determination of the measurement uncertainties of verification tests are given in this SS. This SS is applicable only when the retrofit involves some hardware change in the steam turbine equipment. Conversely, any modification on the cycle or any retrofit of other equipment of the power plant (e.g. boiler, feedwater heaters, etc.) is not covered by this SS.

The rules given in this document are applicable to thermal acceptance tests covering a wide range of accuracy on steam turbines of every type, rating and application. Only the relevant portion of these rules will apply to any individual case. The rules provide for the testing of turbines, whether operating with either superheated or saturated steam. They include measurements and procedures required to determine specific enthalpy within the moisture region and describe precautions necessary to permit testing while respecting radiological safety rules in nuclear plants. Uniform rules for the preparation, carrying out, evaluation, comparison with guarantee and calculation of measuring uncertainty of acceptance tests are defined in this standard. Details of the conditions under which the acceptance test can take place are included. Should any complex or special case arise which is not covered by these rules, appropriate agreement is to be reached by manufacturer and purchaser before the contract is signed.

IEC 60045-1:2020 is applicable primarily to land-based horizontal steam turbines driving generators for electrical power services. Some of its provisions are relevant to turbines for other applications. Generator, gear box and other auxiliaries which are considered as a part of the system are also mentioned in this document. Detailed specifications for this equipment are not included in this document. The purpose of this document is to make an intending purchaser aware of options and alternatives which it may wish to consider, and to enable it to state its technical requirements clearly to potential suppliers. Consequently, final technical requirements will be in accordance with an agreement between the purchaser and the supplier in the contract. This second edition cancels and replaces the first edition published in 1991. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) Scope clarification and boundaries of applicability; b) general update to state-of-the-art technology; c) integration of product safety: Clause 5; d) integration of automation, incorporating the former annex on electronic governors: Clause 11; e) Informative Annex A on welding added.

This part of EN 60953, also called retrofit code (RC), establishes a supplementary retrofit code for thermal verification tests of retrofitted steam turbines.

This standard gives guidance on writing the technical specification for the procurement of fired and unfired shell boilers for use in electricity generating stations (power stations). This Guide for procurement is not applicable to equipment for use in the nuclear reactor plant area of nuclear power stations. Other possible applications of such equipment have not been considered in the preparation of this Guide. This Guide covers shell boilers: - using solid, liquid or gaseous or derived fuels, waste heat utilisation;...

This standard gives guidance on the writing the technical specification for the procurement of Boiler and High Pressure Piping Valves including Safety valves for use in electricity generating stations (power stations). This Guide for procurement is not applicable to equipment for use in the nuclear reactor plant area of nuclear power stations. Other possible applications of such equipment have not been considered in the preparation of this Guide. This Guide covers valves (including safety valves) for installation in - Boiler plants (water tube boilers, shell boilers, boilers with fluidized bed firing);...

This standard gives guidance on writing the technical specification for the procurement of processes and equipment for the removal of nitrogen oxides from the flue gas of steam generating plant for use in electricity generating stations (power stations). This Guide for procurement is not applicable to equipment for use in the nuclear reactor plant area of nuclear power stations. Other possible applications of such equipment have not been considered in the preparation of this Guide.

This standard gives guidance on writing the technical specification for the procurement of water tube boilers for the use in electricity generating stations(power stations). This Guide for procurement is not applicable to equipment for use in the nuclear reactor plant area of the nuclear power stations. Other possible applications of such equipment have not been considered in the preparation of this Guide. This Guide covers water tube boilers: - using solid, liquid or gaseous fuels and for heat recovery; - with pulverised fuel, stoker or cyclone firing, gas or oil firing;...

This standard gives guidance on writing the technical specification for the procurement of sootblower equipment associated with steam generating plant for use in electricity generating stations (power stations). This Guide for procurement is not applicable to equipment for use in the nuclear reactor plant area of nuclear power stations. Other possible applications of such equipment have not been considered in the preparation of this Guide.

This standard gives guidance on writing the technical specification for the procurement of main and auxiliary cooling water systems for use in electricity generating stations (power stations). This Guide for procurement is not applicable to equipment for use in the nuclear reactor plant area of nuclear power stations. Other possible applications of such equipment have not been considered in the preparation of this Guide. This Guide covers: - pump intake screening plant (coarse and fine screens) and associated cleaning systems; - pressure filters; - pipework and valves; - penstock gates; - priming and venting equipment;...

This standard gives guidance on writing the technical specification for the procurement of the pump units for use in electricity generating stations (power stations). This Guide for procurement is not applicable to equipment for use in the nuclear reactor plant area of nuclear power stations. Other possible applications of such equipment have not been considered in the preparation of this Guide. This Guide covers: - Feedwater pumps (including the start-up and booster pumps); Condensate pumps and condensate booster pumps; - Condenser cooling water pumps; - Boiler recirculation pumps;...

This Standard gives guidance on writing the technical specification for the procurement of high pressure piping systems, for use in electricity generating stations (power stations). This Guide for procurement is not applicable to equipment for use in the nuclear reactor plant area of nuclear power stations. Other possible applications of such equipment have not been considered in the preparation of this Guide. This Guide covers: - Live steam lines; - Hot reheat lines; - Cold reheat lines; - Feedwater lines; - Spray water lines for HP and RH-attemperators and steam-bypass-systems; - Pump minimum flow and balancing leak off lines;...

This standard gives guidance on writing the technical specification for the procurement of any lifting equipment used in the electricity generating stations (power stations). This Guide for procurement is not applicable to equipment used in the nuclear reactor plant area of the nuclear power station. Other possibleapplications of such equipment have been considered in the preparation of this Guide. This Guide covers: - Travelling cranes; - Portal or semi-portal bridge cranes; - Fixed or articulated jigs; - Hoist monorails; - Mobile cranes.

This standard gives guidance on writing the technical specification for the procurement of equipment for dust handling associated with coal fired steam generating plant for use in the electricity generating stations (power stations). This Guide for procurement is not applicable to equipment for use in the nuclear reactor plant area of nuclear power stations. Other possible applications of such equipment have not been considered in the preparation of this Guide. This Guide covers the devices for pneumatic, mechanical and hydraulic conveying of different design.

This standard gives guidance on writing the technical specification for the procurement of natural draught and mechanical draught wet and wet/dry (hybrid) cooling tower and cooling towers internals for use in electricity generating stations (power stations). This Guide for procurement is not applicable to equipment for use in the nuclear reactor plant area of nuclear power stations. Other possible applications of such equipment have not been considered in the preparation of this Guide. This Guide covers: - water distribution system; - spray assembly; - filling (film packing, splash grids or laths, etc.);...

This standard gives guidance on writing the technical specification for the procurement of boiler (with fluidized bed firing) for use in electricity generating stations (power stations). This Guide for Procurement is not applicable to equipment for use in the nuclear reactor plant area of nuclear power stations. Other possible applications of such equipment have not been considered in the preparation of this Guide.

This standard gives guidance on writing the technical specification for the procurement of natural draught and mechanical draught dry cooling towers, aircooled condensers and their internals for use in electricity generating stations (power stations). This Guide for procurement is not applicable to equipment for use in the nuclear reactor plant area of nuclear power stations. Other possible applications of such equipment have not been considered in the preparation of this Guide. This Guide covers: - water distribution system; - heat exchangers; - supporting frame and footbrigdes;...

This standard gives guidance on writing the technical specification for the procurement of fans, ducts and dampers associated with steam generating plant and flue gas treatment plant for use in electricity generating stations (power stations). This Guide for procurement is not applicable to equipment for use in the nuclear reactor plant area of nuclear power stations. Other possible applications of such equipment have not been considered in the preparation of this Guide.

This standard gives guidance on writing the technical specification for the procurement of processes and equipment for the removal of sulphur oxides from the flue gas of steam generating plant for use in electricity generations stations (power stations). This Guide for procurement is not applicable to equipment for use in the nuclear reactor plant area of nuclear power stations. Other possible applications of such equipment have not been considered in the preparation of this Guide.

This standard gives guidance on writing the technical specification for the procurement of equipment for ash handling associated with coal fired steam generating plant for use in electricity generating stations (power stations). This Guide for procurement is not applicable to equipment for use in the nuclear reactor plant area of nuclear power stations. Other possible applications of such equipment have not been considered in the preparation of this Guide.

This standard gives guidance on writing the technical specification for the procurement of air heating equipment associated with steam generating plant and gas reheating equipment associated with flue gas treatment plant for use in electricity generating stations (power stations). This Guide for procurement is not applicable to equipment for use in the nuclear reactor plant area of nuclear power stations. Other possible applications of such equipment have not been considered in the preparation of this Guide.

This standard gives guidance on writing the technical specification for the procurement of dust emission reduction equipment for use in electricity generating stations (power stations). This Guide for procurement is not applicable to equipment for use in the nuclear reactor plant area of nuclear power stations. Other possible applications of such equipment have not been considered in the preparation of this Guide.

This standard gives guidance on writing the technical specification for the procurement of moisture separator reheaters for usein electricity generating stations (power stations). This Guide for procurement is not applicable to equipment for use in the nuclear reactor plant area of nuclear power stations. Other possible applications of such equipment have not been considered in the preparation of this guide.

This standard gives guidance on writing the technical specification for the procurement of deaerators associated with steam generating plants and steam turbine plant for use in electricity generating stations (power stations). This guide for procurement is not applicable to equipment for use in the nuclear reactor plant area of nuclear power stations. Other possible applications of such equipment have not been considered in the preparation of this guide.

This standard gives guidance on writing the technical specification for the procurement of feedwater heaters for use in electricity generating stations (power stations). This Guide for procurement is not applicable to equipment for use in the nuclear reactor plant area of nuclear power stations. Other possible applications of such equipment have not been considered in the preparation of this Guide.

This standard gives guidance on writing the technical specification for the procurement of condenser plants for use in electricity generating stations (power stations). This Guide for procurement is not applicable to equipment for use in the nuclear reactor plant area of nuclear power stations. Other possible applications of such equipment have not been considered in the preparation of this Guide.

This standard gives guidance on writing the technical specification for the procurement of gas turbines, including gas turbines for combined-cycle systems, and their auxiliairies for use in electricity generating stations (power stations). This Guide for procurement is not applicable to equipment for use in the nuclear reactor plant area of nuclear pouwer stations. Other possible applications of such equipment have not been considered in the preparation of this guide.

This standard gives guidance on writing the technical specification for the procurement of steam turbines driving generators for use in electricity generating stations (power stations). This Guide for procurement is not applicable to equipment for use in the nuclear reactor plant area of nuclear power stations. Other possible applications of such equipment have not been considered in the preparation of this Guide.

Specifies very accurate testing of steam turbines to obtain the level of performance with minimum measuring uncertainty. Defines uniform rules for preparing and carrying out an evaluation of the acceptance tests. Defines also the conditions under which the acceptance tests shall take place. The cost for conducting this test method will generally be justified economically for large and/or proptotype units.

Provides for acceptance tests of steam turbines of various types and capacities with appropriate measuring uncertainty. Only the relevant portion of these rules will apply to any individual case. The resulting measuring uncertainty of the test result is determined by calculating methods presented in this standard.

Contains recommendations for the conduct of tests of speed control systems of steam turbines. Applies primarily to constant speed steam turbines but may be applied where appropriate for other types of turbines. The purpose of the tests described in this publication is to verify the criteria guaranteed by the manufacturer and to check compliance with EN 60045-1.

Describes a method for the measurement of noise emitted by steam turbines including driven machinery operating under steady state conditions. The results are expressed in sound power levels and in sound pressure levels. Applies to steam turbines of all sizes without limitation of output.

Applies to steam turbines driving generators for electrical power services. Includes provisions relevant to turbines for other applications. Enables a prospective purchaser to be aware of the available options and alternatives and to explain his technical requirements to suppliers. (1970).