This document specifies general requirements for each element in the life cycle of corrosion control engineering in fossil fuel power plants. This document is applicable to corrosion control engineering of all types of fossil fuel power plants.

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This document specifies requirements for the inspection during and after construction, documentation and marking of shell boilers as defined in EN 12953-1.
NOTE   For other components, such as water tube walls, reference will be made to the EN 12952 series.

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This document specifies methods for measuring the quality of thermal power infrastructure (QTPI) during the operational phase and requirements for operations and management activities. It is intended for use by electric power providers, including public utilities and independent power producers (hereinafter collectively referred to as power plant operators), as well as relevant stakeholders that intend to maintain and improve QTPI. NOTE The selection and importance of evaluation indicators resulting from the implementation of this document can vary depending on the characteristics of the power plant operator.

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  • Standard
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This document gives general technical guidelines for evaluating energy savings of thermal power plants before and/or after implementing energy performance improvement action(s) (EPIAs). It includes evaluation, unit component efficiency, indexes calculation, analyses and reporting. This document is applicable to existing thermal power generating units (TPGUs), where fossil fuels (e.g. coal, oil, natural gas) are combusted to generate electricity only or to supply thermal energy with the additional production of electricity (i.e. combined cycle power plants). NOTE A typical thermal power plant encompasses at least one TPGU. If there is more than one, the TPGUs can run independently. Results obtained in accordance with this document can be used either to evaluate the potential of energy savings or to determine fulfilment of contract guarantees. They do not provide a basis for comparison of the energy savings between TPGUs. This document does not prescribe performance tests or measurements for TPGU equipment components/systems, the sampling and analysis of the fuels used, substances added for control of emissions (e.g. halide, limestone) and by-products (e.g. ash, gypsum), and instruments to be employed, but it does specify parameters of interest in the determination of energy savings. Applicable procedures can be found in relevant documents (published or to be published).

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  • Standard
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This European Standard specifies requirements for the workmanship and construction of shell boilers as defined in EN 12953-1.
NOTE 1   For other components such as water tube walls, see the EN 12952 series.
NOTE 2   For economizers and superheaters, see EN 12953-4 or EN 12952-5.

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ISO 18888:2017 specifies standard rules for preparing, conducting, evaluating and reporting thermal performance tests on combined cycle and cogeneration power plants driven by gas turbines for base and part load operation with or without supplementary firing. ISO 18888:2017 is applicable to - thermal performance tests for general information, - thermal acceptance tests for determining the performance of the combined cycle plant in relation to a contractual guarantee, and - comparative tests designed to check the performance differentials of the combined cycle and cogeneration power plants, for testing before and after modifications, upgrades or overhauls. It can be used to determine the following thermal performance test goals and expected values, under specific operating and reference conditions within defined test boundaries: - electrical power output; - heat rate or thermal efficiency; - process steam and/or district heat w/o generation of electrical power output by means of a steam turbine. ISO 18888:2017 does not apply to individual equipment component testing, which is covered by corresponding standards. It is not intended to be applied to the following test goals: - environmental testing for example emissions, noise; - vibration testing; - operational testing; - absolute or comparative performance of specific components of the combined cycle covered by dedicated standards (e.g. gas turbines).

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This Part of this European Standard specifies requirements for the design and calculation of pressure parts of shell boilers as defined in EN 12953 1.
NOTE   For other components such as economisers, superheaters, tube walls, headers, reference should be made to EN 12952 series.

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This part of IEC 61000 specifies EMC immunity requirements which apply to electrical and
electronic equipment intended for use in power stations and substations, as described below.
Immunity requirements for electromagnetic phenomena with spectral contributions in the
frequency range 0 Hz to 400 GHz are covered. No tests need to be performed at frequencies
or for phenomena where no requirements are specified.
This international standard sets immunity test requirements for equipment intended for use in
the generation, transmission and distribution of electricity and related telecommunication
systems. The electromagnetic environments encompassed by this standard are those which
exist at locations
• in power stations, and
• in high and medium voltage substations.
Installations to generate or convert into electrical power inside industrial facilities are also
covered by this standard as long as they, at their primary electrical connection, cannot be
directly connected to the LV power network, e.g. where the generator output voltage is
medium voltage or higher. Power installations that directly provide power into the low voltage
network (such as photovoltaic cells or combined heat power systems in private houses) are
not covered by this standard.
NOTE 1 In general, power stations comprise installations which are mainly built to convert some kind of primary
energy into electrical energy. Moreover, these power stations are connected to the medium or high voltage power
system directly or via a step-up transformer.
The object of this standard is to define immunity test requirements for equipment defined in
the scope in relation to continuous and transient, conducted and radiated disturbances,
including electrostatic discharges.
The immunity test requirements are given on a port-by-port basis, and selected according to
the location, with differentiated levels for equipment to be installed in power stations or
substations. In special cases, situations will arise where the level of electromagnetic
disturbances may exceed the levels specified in this standard; in these instances, special
mitigation measures should be adopted.
The immunity requirements are suitable for satisfying the particular needs related to the
functions and tasks of equipment and systems, for which reliable operation is required under
realistic electromagnetic conditions; in this respect, this standard establishes performance
criteria for different functional requirements.
This generic EMC immunity standard is applicable if no relevant dedicated product or productfamily
EMC immunity standard exists. According to IEC Guide 107, this generic standard
should be considered for the preparation or revision of any EMC standard referring to specific
products used in power stations and substations.Non-electronic high voltage and power equipment (primary system) are excluded from the
scope of this standard.
Emission requirements are not within the scope of this standard and are covered by relevant
product or product-family standards

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ISO 14084-1:2015 specifies types of process diagrams for power plants and rules and guidelines for the preparation and representation of information in such diagrams.

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ISO 14084-2:2015 specifies graphical symbols for process diagrams for power plants and guidelines for creation of new graphical symbol examples. ISO 14084-2:2015 is a collective application standard of the ISO 14617‑series. Graphical symbols for fluid power diagrams can be found in ISO 1219‑1. Graphical symbols for electrotechnical diagrams can be found in IEC 60617.

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EN IEC 62504 is of assistance in the common understanding of terms and definitions, relevant for general lighting with LED technology. The terms included are those already available in IEC LED standards or used in manufacturers' literature. This standard provides descriptive terms (like “LED light sources”) and measurable terms when modified from IEC 60050-845 (like “colour rendering index”).

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This European Standard specifies the following materials for the pressure bearing parts of shell boilers and equipment of shell boilers (e.g. valves), subjected to internal and external pressure including integral attachments (non pressure bearing parts):
   flat products (plate) and parts formed from flat products (e.g. shell, furnace, dished ends);
   tubes and parts formed from tubes (e.g. bending, elbows, reducers, fittings);
   forgings and cast products ;
   bolting materials;
   welding consumables.

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1.1   General
This European Standard applies to shell boilers with volumes in excess of 2 litres for the generation of steam and/or hot water at a maximum allowable pressure greater than 0,5 bar and with a temperature in excess of
110 °C.
The purpose of this European Standard is to ensure that the hazards associated with the operation of shell boilers are reduced to a minimum and that adequate protection is provided to contain the hazards that still prevail when the shell boiler is put into service. This protection will be achieved by the proper application of the design, manufacturing, testing and inspection methods and techniques incorporated in the various parts of this European Standard. Where appropriate, adequate warning of residual hazards and the potential for misuse are given in the training and operating instructions and local to the equipment concerned (see EN 12953-7 and EN 12953-8).
It is the manufacturer's responsibility, in addition to complying with the requirements of this standard, to take into consideration special measures which could be necessary in order to achieve by manufacturing the required level of safety in accordance with the EU Directive 97/23/EC (PED).
NOTE 1   Further requirements relating to operating instructions in prEN 12953-13 and to hazard analysis in
CEN/TS 764-6 should be taken into consideration.
This European Standard specifies requirements for both directly fired and electrically heated boilers including Low Pressure Boilers (LPB, see 3.6) as well as for heat recovery boilers with a gas-side pressure not exceeding 0,5 bar of cylindrical design, constructed from carbon or carbon manganese steels by fusion welding and a design pressure not exceeding 40 bar. The boilers covered by this European Standard are intended for land use for providing steam or hot water (typical examples are shown in Figures 1 to 6).
For Low Pressure Boilers (LPB) less stringent requirements concerning design and calculation are acceptable. Details are defined in the respective clauses.
NOTE 2   For boilers operating at a pressure on the gas-side greater than 0,5 bar the rules of this standard equally apply. However, it is generally considered that additional design analysis, inspection and testing may be necessary.
Where a particular boiler is a combination of shell and water-tube design then the water-tube standard series EN 12952 is used in addition to this European Standard. One such example of this combination is shown in Figure 3.
This European Standard applies to the generator, from the feed-water or water inlet connection to the steam or water outlet connection and to all other connections, including the valves and steam and water fittings. If welded ends are used, the requirements specified herein begin or end at the weld where flanges, if used, would have been fitted.
1.2   Exclusions
This European standard does not apply to the following types of boilers and equipments:
a)   water-tube boilers;
b)   non stationary boilers, e.g. locomotive boilers;
c)   thermal oil boilers;
d)   boilers where the main pressure housing is made of cast material.
e)   pumps, gaskets, etc.
f)   brickwork setting and insulation, etc.
NOTE   Stainless steel boilers are covered by EN 14222.

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This European Standard specifies the constructional details and performance requirements for cables for indoor Residential Cabling Systems characterized up to 100 MHz. Cables in this European Standard are based on the common design rules specified in EN 50290-2-1 and are specifically intended for supporting ICT and BCT applications (telephone, computer and TV services) as specified in EN 50173-4. The cables covered in this European Standard are intended to operate with voltages and currents normally encountered in communication systems. These cables are not intended to be used in conjunction with low impedance sources, for example, the electrical power supply of public utility mains. Cables covered in this European Standard may however be subjected to voltages of not more than 300 V a.c. or 450 V d.c and comply with the requirements of the Low Voltage Directive. The maximum current rating per conductor is 3 A/mm? unless otherwise specified in the relevant detail specification.

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This European Standard specifies the constructional details and performance requirements for cables for installation in indoor residential cabling systems characterized up to 1 200 MHz. Cables in this European Standard are based on the common design rules specified in EN 50290-2-1 and are specifically intended for supporting ICT and BCT applications (telephone, computer and TV services) as specified in EN 50173-4. The cables covered in this European Standard are intended to operate with voltages and currents normally encountered in communication systems. These cables are not intended to be used in conjunction with low impedance sources, for example, the electrical power supply of public utility mains. Cables covered in this European Standard may however be subjected to voltages of not more than 300 V a.c or 450 V d.c and comply with the requirements of the Low Voltage Directive. The maximum current rating per conductor is 3 A/mm? unless otherwise specified in the relevant detail specification.

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This European Standard specifies the constructional details and performances requirements for cables for indoor residential cabling systems characterized up to 100 MHz. Cables in this European Standard are based on the common design rules specified in EN 50290-2-1 and are specifically intended for supporting ICT and BCT applications (telephone, computer and TV services) as specified in EN 50173-4. The cables covered in this European Standard are intended to operate with voltages and currents normally encountered in communications systems. These cables are not intended to be used in conjunction with low impedance sources, for example, the electrical power supply of public utility mains. Cables covered in this European Standard may however be subjected to voltages of not more than 300 V a.c. or 450 V d.c. and comply with the requirements of the Low Voltage Directive. The maximum current rating per conductor is 3 A/mm? unless otherwise specified in the relevant detail specification.

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IEC 60038:2009 specifies standard voltage values which are intended to serve as preferential values for the nominal voltage of electrical supply systems, and as reference values for equipment and system design. This seventh edition supersedes the sixth edition (1993), its Amendment 1 (1994) and its Amendment 2 (1997). It constitutes a technical revision. The significant technical changes are:
- the addition of the values of 230 V (50 Hz) and 230/400 V (60 Hz) to Table 1;
- the replacement of the utilization voltage range at LV by a reference to the relevant standard and an informative annex;
- the addition of the value of 30 kV to Table 3;
- the replacement of the value of 1 050 kV by 1 100 kV in Table 5.
It has the status of a horizontal standard in accordance with IEC Guide 108.

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This standard gives guidance on writing the technical specification for the procurement of 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 Guide on cabling systems deals with a wide range of activities and may be used for any or all of these activities by selection of the relevant parts e.g.: - provision of support for cable; - laying of cable; - completion of cable ends; The Guide covers the installation of power cable up to and including 20,8/36 (42) kV and the supply and installation of control and instrumentation cable. The supply of power cable is covered by EN 45510-2-8. The Guide includes the installation of protective conductor cable for earthing and equipotential bonding up to the main earthing busbar(s), but not the below ground earth-electrode network. The equipment covered by this Guide is defined by its function rather than design type. Therefore, the guidance to the specification is stated in performance terms rather than being specified by a detailed description of the equipment to be supplied. This Guide indicates to potential purchasers how their specification should be prepared so that - the equipment type and capacity interfaces correctly with other elements of the systems, - predicted performance is achieved, - ancillary equipment is properly sized, - reliability, availability and safety requirements are achieved, - proper consideration is given to the evaluation process and the quality measures to be applied. This Guide does not determine the type of specification (e.g. detailed, performance, functional) or the extent of supply for any given contract which is normally decided on the basis of the purchaser's project strategy. It does not cover - any commercial, contractual or legal issues which are normally in separate parts of an enquiry, - any allocation of responsibilities which are determined by the contract. This Guide does not prescribe the arrangement of the documents in the enquiry. NOTE As a comprehensive European environmental policy is still under preparation, this Guide does not address the environmental implications of the equipment.

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This part of this European Standard specifies the minimum requirements for safety related equipment for shell boilers as defined in EN 12953-1, to ensure the boiler operates within the allowable limits (pressure, temperature, etc.) and if the limits are exceeded the energy supply shall be interrupted and locked out without manual (human) intervention at the boiler.
NOTE 1   The maximum time of operation without manual (human) intervention should be defined for each boiler system.
NOTE 2   Annex C (informative) gives recommendations of operation and testing of the boiler system with a maximum time of operation without manual (human) intervention of 72 hours.

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This standard gives guidance on writing the technical specification for the procurement of 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 Guide on cabling systems deals with a wide range of activities and may be used for any or all of these activities by selection of the relevant parts e.g.:;provision of support for cable;;laying of cable;;completion of cable ends; The Guide covers the installation of power cable up to and including 20,8/36 (42) kV and the supply and installation of control and instrumentation cable. The supply of power cable is covered by EN 45510-2-8. The Guide includes the installation of protective conductor cable for earthing and equipotential bonding up to the main earthing busbar(s), but not the below ground earth-electrode network. The equipment covered by this Guide is defined by its function rather than design type. Therefore, the guidance to the specification is stated in performance terms rather than being specified by a detailed description of the equipment to be supplied. This Guide indicates to potential purchasers how their specification should be prepared so that;the equipment type and capacity interfaces correctly with other elements of the systems,;predicted performance is achieved,;ancillary equipment is properly sized,;reliability, availability and safety requirements are achieved,;proper consideration is given to the evaluation process and the quality measures to be applied. This Guide does not determine the type of specification (e.g. detailed, performance, functional) or the extent of supply for any given contract which is normally decided on the basis of the purchaser's project strategy. It does not cover;any commercial, contractual or legal issues which are normally in separate parts of an enquiry,;any allocation of responsibilities which are determined by the contract. This Guide does not prescribe the arrangement of the documents in the enquiry.

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This part of IEC 62127 specifies relevant hydrophone characteristics. This standard is applicable to: - hydrophones employing piezoelectric sensor elements, designed to measure the pulsed and continuous wave ultrasonic fields generated by ultrasonic equipment; - hydrophones used for measurements made in water; - hydrophones with or without an associated pre-amplifier.

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This standard gives guidance on writing the technical specification for the procurement of low voltage (LV) and medium voltage (MV) power cables 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 power cables only for voltages up to and including Um = 41,5 kV. This Guide does not cover cables for public distribution systems, control and instrumentation systems or communications systems. For guidance on the technical specification of cables, including their installation and termination, refer to EN 45510-2-6 The equipment covered by this Guide is defined by its function rather than design type. Therefore, the guidance to the specification is stated in performance terms rather than being specified by a detailed description of the equipment to be supplied. This Guide indicates to potential purchasers how their specification should be prepared so that: - the equipment type and capacity interfaces correctly with other elements of the systems; - predicted performance is achieved; - ancillary equipment is properly sized; - reliability, availability and safety requirements are achieved; - proper consideration is given to the evaluation process and the quality measures to be applied. This Guide does not determine the type of specification (e.g. detailed, performance, functional) or the extent of supply for any given contract which is normally decided on the basis of the purchaser’s project strategy. It does not cover: - any commercial, contractual or legal issues which are normally in separate parts of an enquiry; - any allocation of responsibilities which are determined by the contract. This Guide does not prescribe the arrangement of the documents in the enquiry.

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This standard gives guidance on writing the technical specification for the procurement of low voltage (LV) and medium voltage (MV) power cables 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 power cables only for voltages up to and including Um  = 41,5 kV.  This Guide does not cover cables for public distribution systems, control and instrumentation systems or communications systems.
For guidance on the technical specification of cables, including their installation and termination, refer to EN 45510-2-6
The equipment covered by this Guide is defined by its function rather than design type.  Therefore, the guidance to the specification is stated in performance terms rather than being specified by a detailed description of the equipment to be supplied.
This Guide indicates to potential purchasers how their specification should be prepared so that:
   -   the equipment type and capacity interfaces correctly with other elements of the systems;
   -   predicted performance is achieved;
   -   ancillary equipment is properly sized;
   -   reliability, availability and safety requirements are achieved;
   -   proper consideration is given to the evaluation process and the quality measures to be applied.
This Guide does not determine the type of specification (e.g. detailed, performance, functional) or the extent of supply for any given contract which is normally decided on the basis of the purchaser’s project strategy. It does not cover:
   -   any commercial, contractual or legal issues which are normally in separate parts of an  enquiry;
   -   any allocation of responsibilities which are determined by the contract.
This Guide does not prescribe the arrangement of the documents in the enquiry.

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This standard gives guidance on writing the technical specification for the procurement of static a.c. and d.c. high power convertors 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 each type of power convertor, i.e. rectifier, inverter, static excitation system, conversion of a.c. to a.c./d.c. to d.c. and switching, for the purpose of changing and/or controlling one or more characteristics.
This type of equipment is used for many applications such as motor drives and actuators, e.g. variable frequency starting equipment, a.c. and d.c. power supplies for computers and instrumentation, in chemical process plant, e.g. rectifiers for electrolysis in hydrogen production, in mechanical plant, e.g. electrostatic precipitators, etc. For additional, or specific, requirements for batteries, battery chargers or uninterruptible power supplies (UPS) refer to the relevant guides in this series. The equipment covered by this Guide is defined by its function rather than design type. Therefore, the guidance to the specification is stated in performance terms rather than being specified by a detailed description of the equipment to be supplied.
This Guide indicates to potential purchasers how their specification should be prepared so that:
- the equipment type and capacity interfaces correctly with other elements of the systems;
- predicted performance is achieved;
- ancillary equipment is properly sized;
- reliability, availability and safety requirements are achieved;
- proper consideration is given to the evaluation process and the quality measures to be applied.
This Guide does not determine the type of specification (e.g. detailed, performance, functional) or the extent of supply for any given contract which is

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This standard gives guidance on writing the technical specification for the procurement of motors 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 motors within installations primarily concerned with the generation of electrical power. However, as a complete electrical drive system is not defined in this Guide, attention is drawn to the possible additional electrical and mechanical stresses to which the motor may be subjected e.g. by a static AC converter/inverter. Reference should be made to IEC 60034-17. The equipment covered by this Guide is defined by its function rather than design type. Therefore, the guidance to the specification is stated in performance terms rather than being specified by a detailed description of the equipment to be supplied. This Guide indicates to potential purchasers how their specification should be prepared so that: - the equipment type and capacity interfaces correctly with other elements of the systems; - predicted performance is achieved; - ancillary equipment is properly sized; - reliability, availability and safety requirements are achieved; - proper consideration is given to the evaluation process and the quality measures to be applied. This Guide does not determine the type of specification (e.g. detailed, performance, functional) or the extent of supply for any given contract which is normally decided on the basis of the purchaser’s project strategy. It does not cover: - any commercial, contractual or legal issues which are normally in separate parts of an enquiry; - any allocation of responsibilities which are determined by the contract. This Guide does not prescribe the arrangement of the documents in the enquiry.

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This standard gives guidance on writing the technical specification for the procurement of switchgear and controlgear 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 switchgear and controlgear within installations primarily concerned with the generation of electrical power and, where appropriate, their interconnection with the transmission and/or distribution system. It also includes main connections (busbars) associated with generator circuits and the ancillary plant forming part of switchboards and/or switching circuits. The equipment covered by this Guide is defined by its function rather than design type. Therefore, the guidance to the specification is stated in performance terms rather than being specified by a detailed description of the equipment to be supplied. This Guide indicates to potential purchasers how their specification should be prepared so that: - the equipment type and capacity interfaces correctly with other elements of the systems; - predicted performance is achieved; - ancillary equipment is properly sized; - reliability, availability and safety requirements are achieved; - proper consideration is given to the evaluation process and the quality measures to be applied. This Guide does not determine the type of specification (e.g. detailed, performance, functional) or the extent of supply for any given contract which is normally decided on the basis of the purchaser’s project strategy. It does not cover: - any commercial, contractual or legal issues which are normally in separate parts of an enquiry; - any allocation of responsibilities which are determined by the contract. This Guide does not prescribe the arrangement of the documents in the enquiry.

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This part of this European Standard specifies the requirements for internal or external grate firing systems commencing at the fuel bunkers and ending at the ash extraction plant. For combination of various firing systems, the individual requirements of each system also apply.
If several fuels are burnt simultaneously or if a fuel quality varies considerably (e.g. moisture content), additional safety measures can be necessary, especially with respect to limitation of the fuel flow into the firing system and ensuring proper air supply to the individual fuels.

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This Part of this European Standard specifies a concise procedure for conducting thermal performance tests, using the indirect (losses) procedure for boilers for steam or hot water. Test results are based on either the gross or net calorific value of the fuel.
This concise procedure provides a convenient means for assessing boilers which thermodynamically simple, i.e. having a single major source of heat input and a simple circuit for water, steam or high temperature heat transfer fluid.
NOTE 1   The use of the direct method is not advocated, because the estimated measuring error is three to four times greater than with the indirect method.
NOTE 2   An acceptance test may be required:
a) after the commissioning of new plant or after the recommissioning of modified plant in order to verify compliance with a specification or contractual obligation;
b) whenever the user wishes to determine the current performance of the plant either on a route basis or due to change of load or other operating conditions or when a change of fuel or a modification to the plant is being considered;
c) whenever the user wishes to check combustion conditions.
Regular tests in accordance with this European Standard will enable boiler plant to be monitored in normal operation for opti-mum efficiency in the interests of fuel conservation.
This procedure does not cover condensing boilers. The application of boilers, where heat is extracted from waste gases is specified in annex B.

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This standard gives guidance on writing the technical specification for the procurement of motors 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 motors within installations primarily concerned with the generation of electrical power. However, as a complete electrical drive system is not defined in this Guide, attention is drawn to the possible additional electrical and mechanical stresses to which the motor may be subjected e.g. by a static AC converter/inverter.  Reference should be made to IEC 60034-17.
The equipment covered by this Guide is defined by its function rather than design type.  Therefore, the guidance to the specification is stated in performance terms rather than being specified by a detailed description of the equipment to be supplied.
This Guide indicates to potential purchasers how their specification should be prepared so that:
- the equipment type and capacity interfaces correctly with other elements of the systems;
- predicted performance is achieved;
- ancillary equipment is properly sized;
- reliability, availability and safety requirements are achieved;
- proper consideration is given to the evaluation process and the quality measures to be  applied.
This Guide does not determine the type of specification (e.g. detailed, performance, functional) or the extent of supply for any given contract which is normally decided on the basis of the purchaser’s project strategy. It does not cover:
- any commercial, contractual or legal issues which are normally in separate parts of an enquiry;
- any allocation of responsibilities which are determined by the contract.
This Guide does not prescribe the arrangement of the documents in the enquiry.

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This standard gives guidance on writing the technical specification for the procurement of turbine-driven generators and their auxiliaries 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.
The generators may be air, hydrogen, or liquid-cooled.  The excitation system may be of the static or rotating rectifier type fed by a static or rotating power supply.
The equipment covered by this Guide is defined by its function rather than design type.  Therefore, the guidance to the specification is stated in performance terms rather than being specified by a detailed description of the equipment to be supplied.
This Guide indicates to potential purchasers how their specification should be prepared so that:
- the equipment type and capacity interfaces correctly with other elements of the systems;
- predicted performance is achieved;
- ancillary equipment is properly sized;
- reliability, availability and safety requirements are achieved;
- proper consideration is given to the evaluation process and the quality measures to be applied.
This Guide does not determine the type of specification (e.g. detailed, performance, functional) or the extent of supply for any given contract which is normally decided on the basis of the purchaser’s project strategy. It does not cover:
- any commercial, contractual or legal issues which are normally in separate parts of an  enquiry;
- any allocation of responsibilities which are determined by the contract.
This Guide does not prescribe the arrangement of the documents in the enquiry.
NOTE: As a comprehensive European environmental policy is still under preparation, this  Guide does not address the environmental implications of the equipment.

  • Standard
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This part of the European Standard applies to all shell boilers as defined in prEN 12953-1 which are heated by combustion of one or more fuels or by hot gases for the generation of steam and/or hot water. This European Standard applies to those components between the feedwater inlet and the steam outlet of the steam generator. The quality of the steam produced is outside the scope of this standard.

  • Standard
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  • Standard – translation
    15 pages
    Slovenian language
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This standard gives guidance on writing the technical specification for the procurement of coal handling and bulk storage plant, associated with steam generating plant in the electrical power supply industry. This includes: wagon unloaders or wagon tipplers; barges or ship unloaders; coal stackers and coal reclaimers (bucket wheels, scrapers) of the coal yard; hoppers; silos for coal mixing, buffer silos, bunkers (boiler house silos); transfer towers between belt conveyors; belt conveyors, bucket elevators; metal structures (towers, conveyor tunnels)...

  • Standard
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This standard gives guidance on writing the technical specification for the procurement of fuel preparation plant for solid, liquid and gaseous fuels associated with steam generating plant and flue gas treatment plant in the electrical power supply industry. This includes: feeders; pulverizers/mills, crushers; classifiers, pipework; pumps; heaters; filters; dampers; valves.

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    26 pages
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This standard gives guidance on writing the technical specification for the procurement of switchgear and controlgear 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 switchgear and controlgear within installations primarily concerned with the generation of electrical power and, where appropriate, their interconnection with the transmission and/or distribution system. It also includes main connections (busbars) associated with generator circuits and the ancillary plant forming part of switchboards and/or switching circuits.
The equipment covered by this Guide is defined by its function rather than design type.  Therefore, the guidance to the specification is stated in performance terms rather than being specified by a detailed description of the equipment to be supplied.
This Guide indicates to potential purchasers how their specification should be prepared so that:
- the equipment type and capacity interfaces correctly with other elements of the systems;
- predicted performance is achieved;
- ancillary equipment is properly sized;
- reliability, availability and safety requirements are achieved;
- proper consideration is given to the evaluation process and the quality measures to be applied.
This Guide does not determine the type of specification (e.g. detailed, performance, functional) or the extent of supply for any given contract which is normally decided on the basis of the purchaser’s project strategy. It does not cover:
- any commercial, contractual or legal issues which are normally in separate parts of an enquiry;
- any allocation of responsibilities which are determined by the contract.
This Guide does not prescribe the arrangement of the documents in the enquiry.

  • Standard
    30 pages
    English language
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This standard gives guidance on writing the technical specification for the procurement of coal handling and bulk storage plant, associated with steam generating plant in the electrical power supply industry. This includes: wagon unloaders or wagon tipplers; barges or ship unloaders; coal stackers and coal reclaimers (bucket wheels, scrapers) of the coal yard; hoppers; silos for coal mixing, buffer silos, bunkers (boiler house silos); transfer towers between belt conveyors; belt conveyors, bucket elevators; metal structures (towers, conveyor tunnels)...

  • Standard
    42 pages
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This standard gives guidance on writing the technical specification for the procurement of fuel preparation plant for solid, liquid and gaseous fuels associated with steam generating plant and flue gas treatment plant in the electrical power supply industry. This includes: feeders; pulverizers/mills, crushers; classifiers, pipework; pumps; heaters; filters; dampers; valves.

  • Standard
    26 pages
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This standard gives guidance on writing the technical specification for the procurement of stationary batteries and chargers 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 stationary lead-acid and nickel-cadmium batteries, chargers, battery accommodation battery main connections and battery accessories. This equipment usually forms part of either a centralised or unit d.c. supplies system for duties such as switchgear closing/tripping, protection, control, alarm, instrumentation and telecommunication supplies, emergency lighting and emergency drives. The equipment covered by this Guide is defined by its function rather than design type. Therefore, the guidance to the specification is stated in performance terms rather than being specified by a detailed description of the equipment to be supplied. This Guide indicates to potential purchasers how their specification should be prepared so that: - the equipment type and capacity interfaces correctly with other elements of the systems; - predicted performance is achieved; - ancillary equipment is properly sized; - reliability, availability and safety requirements are achieved; - proper consideration is given to the evaluation process and the quality measures to be applied. This Guide does not determine the type of specification (e.g. detailed, performance, functional) or the extent of supply for any given contract which is normally decided on the basis of the purchaser’s project strategy. It does not cover:
- any commercial, contractual or legal issues which are normally in separate parts of an enquiry;
- any allocation of responsibilities which are determined by the contract.
This Guide does not prescribe the arrangement of the documents in the enquiry.

  • Standard
    32 pages
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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;...

  • Standard
    26 pages
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TC - Request to implement normative comments from BSI after Formal Vote
2013: Originator of XML version: first setup pilot of CCMC in 2012

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  • Corrigendum
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This Technical report gives guidance for the involvement of an inspection body independent of the manufacturer of shell boilers as defined in EN 12953 1.

  • Technical report
    12 pages
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These requirements apply to oil and gas firing systems of steam and hot water generators. For multifuel firing systems using separate or combined burners these requirements shall apply to the oil and/or gas firing part involved. Where several fuels are burnt simultaneously, improved safety measures may be necessary, especially in respect to limitation of heat input into the firing system and proper air supply to the individual fuels.

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  • Standard
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This Part of this European Standard specifies the requirements for safeguards against excessive pressure in shell boilers
as defined in EN 12953-1.

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    7 pages
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  • Standard
    7 pages
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This standard gives guidance on writing the technical specification for the procurement of static a.c. and d.c. high power convertors 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 each type of power convertor, i.e. rectifier, inverter, static excitation system, conversion of a.c. to a.c./d.c. to d.c. and switching, for the purpose of changing and/or controlling one or more characteristics.
This type of equipment is used for many applications such as motor drives and actuators, e.g. variable frequency starting equipment, a.c. and d.c. power supplies for computers and instrumentation, in chemical process plant, e.g. rectifiers for electrolysis in hydrogen production, in mechanical plant, e.g. electrostatic precipitators, etc. For additional, or specific, requirements for batteries, battery chargers or uninterruptible power supplies (UPS) refer to the relevant guides in this series. The equipment covered by this Guide is defined by its function rather than design type. Therefore, the guidance to the specification is stated in performance terms rather than being specified by a detailed description of the equipment to be supplied.
This Guide indicates to potential purchasers how their specification should be prepared so that:
- the equipment type and capacity interfaces correctly with other elements of the systems;
- predicted performance is achieved;
- ancillary equipment is properly sized;
- reliability, availability and safety requirements are achieved;
- proper consideration is given to the evaluation process and the quality measures to be applied.
This Guide does not determine the type of specification (e.g. detailed, performance, functional) or the extent of supply for any given contract which is

  • Standard
    29 pages
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This standard gives guidance on writing the technical specification for the procurement of stationary batteries and chargers 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 stationary lead-acid and nickel-cadmium batteries, chargers, battery accommodation battery main connections and battery accessories. This equipment usually forms part of either a centralised or unit d.c. supplies system for duties such as switchgear closing/tripping, protection, control, alarm, instrumentation and telecommunication supplies, emergency lighting and emergency drives. The equipment covered by this Guide is defined by its function rather than design type. Therefore, the guidance to the specification is stated in performance terms rather than being specified by a detailed description of the equipment to be supplied. This Guide indicates to potential purchasers how their specification should be prepared so that: - the equipment type and capacity interfaces correctly with other elements of the systems; - predicted performance is achieved; - ancillary equipment is properly sized; - reliability, availability and safety requirements are achieved; - proper consideration is given to the evaluation process and the quality measures to be applied. This Guide does not determine the type of specification (e.g. detailed, performance, functional) or the extent of supply for any given contract which is normally decided on the basis of the purchaser’s project strategy. It does not cover: - any commercial, contractual or legal issues which are normally in separate parts of an enquiry; - any allocation of responsibilities which are determined by the contract. This Guide does not prescribe the arrangement of the documents in the enquiry.

  • Standard
    32 pages
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This standard gives guidance on writing the technical specification for the procurement of turbine-driven generators and their auxiliaries 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. The generators may be air, hydrogen, or liquid-cooled. The excitation system may be of the static or rotating rectifier type fed by a static or rotating power supply. The equipment covered by this Guide is defined by its function rather than design type. Therefore, the guidance to the specification is stated in performance terms rather than being specified by a detailed description of the equipment to be supplied. This Guide indicates to potential purchasers how their specification should be prepared so that: - the equipment type and capacity interfaces correctly with other elements of the systems; - predicted performance is achieved; - ancillary equipment is properly sized; - reliability, availability and safety requirements are achieved; - proper consideration is given to the evaluation process and the quality measures to be applied. This Guide does not determine the type of specification (e.g. detailed, performance, functional) or the extent of supply for any given contract which is normally decided on the basis of the purchaser’s project strategy. It does not cover: - any commercial, contractual or legal issues which are normally in separate parts of an enquiry; - any allocation of responsibilities which are determined by the contract. This Guide does not prescribe the arrangement of the documents in the enquiry. NOTE: As a comprehensive European environmental policy is still under preparation, this Guide does not address the environmental implications of the equipment.

  • Standard
    38 pages
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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;...

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    30 pages
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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.

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    28 pages
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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);...

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    24 pages
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