27 ELEKTRI- JA SOOJUSENERGEETIKA
Tagasi peagrupi juurde
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Wind turbines - Part 4: Design requirements for wind turbine gearboxes (IEC 61400-4:2012)
This part of the IEC 61400 series is applicable to enclosed speed increasing gearboxes for horizontal axis wind turbine drivetrains with a power rating in excess of 500 kW. This standard applies to wind turbines installed onshore or offshore. This International Standard provides guidance on the analysis of the wind turbine loads in relation to the design of the gear and gearbox elements. The gearing elements covered by this standard include such gears as spur, helical or double helical and their combinations in parallel and epicyclic arrangements in the main power path. This standard does not apply to power take off gears (PTO). The standard is based on gearbox designs using rolling element bearings. Use of plain bearings is permissible under this standard, but the use and rating of them is not covered. Also included is guidance on the engineering of shafts, shaft hub interfaces, bearings and the gear case structure in the development of a fully integrated design that meets the rigours of the operating conditions. Lubrication of the transmission is covered along with prototype and production testing. Finally, guidance is provided on the operation and maintenance of the gearbox.
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Wind turbines - Part 12-2: Power performance of electricity-producing wind turbines based on nacelle anemometry
IEC 61400-12-2:2013 specifies a procedure for verifying the power performance characteristics of a single electricity-producing, horizontal axis wind turbine, which is not considered to be a small wind turbine per IEC 61400-2. This standard is intended to be used when the specific operational or contractual specifications may not comply with the requirements set forth in IEC 61400-12-1:2005. The procedure can be used for power performance evaluation of specific turbines at specific locations, but equally the methodology can be used to make generic comparisons between different turbine models or different turbine settings.
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Recommendations for small renewable energy and hybrid systems for rural electrification - Part 9-5: Integrated system - Selection of stand-alone lighting kits for rural electrification
IEC/TS 62257-9-5:2013(E) applies to stand-alone rechargeable electric lighting appliances or kits that can be installed by a typical user without employing a technician. This technical specification presents a quality assurance framework that includes product specifications (a framework for interpreting test results), test methods, and standardized specifications sheets (templates for communicating test results). The intended users of this technical specification are:
- market support programmes;
- manufacturers and distributors;
- bulk procurement programmes;
- trade regulators. The main changes with respect to the first edition are:
- overall, shifted from narrow focus on the needs of bulk procurement programmes to a wider framework for structuring quality assurance using appropriate methods for a range of stakeholders including governments, manufacturers, buyers, and others;
- revised structure of document with modular methods (located in annexes)
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Air-cooled air conditioners and air-to-air heat pumps -- Testing and calculating methods for seasonal performance factors -- Part 1: Cooling seasonal performance factor
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Air-cooled air conditioners and air-to-air heat pumps -- Testing and calculating methods for seasonal performance factors -- Part 2: Heating seasonal performance factor
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Air-cooled air conditioners and air-to-air heat pumps -- Testing and calculating methods for seasonal performance factors -- Part 3: Annual performance factor
EVS-HD 472 S1:2003/AC:2013
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Identne HD 472 S1:1989/AC:2013
Nominal voltages for low voltage public electricity supply systems
Asendatud või tühistatud standardid
Recommendations for small renewable energy and hybrid systems for rural electrification - Part 9-5: Integrated system - Selection of portable PV lanterns for rural electrification projects
Applies to portable solar photovoltaic lanterns (portable PV lantern) and is independent of the technology used to provide the light.
Identne prEN 1397:2013
Soojusvahetid. Vedelikke kasutavad toaventilaatoriga spiraalseadmed. Talitlusandmete kindlaksmääramise toimingud
This European Standard applies to hydronic fan coil units (FCU) as factory-made single assemblies which provide the functions or cooling and/or heating but do not include the source of cooling or heating. The standard covers both free delivery and ducted units with a maximum external static pressure due to duct resistance of 120 Pa max. This standard deals with the cooling and heating functions of the FCU considered as an emitter for cooling/heating of a room/space. It does not cover any ventilation function of the unit. If the FCU can also provide fresh air, this function is not considered and the fresh air inlet closed during testing. This European standard provides a method for the determination of the thermal performance of fan coil units in standard conditions, for the use with hot or chilled water or water mixtures. The test procedures given in this standard may additionally be used for determining performance at other conditions. It also provides the method for the determination of the air flow rate supplied by the fan coil unit. The standard does not cover the rating of heating or cooling from direct expansion coils or heating from electric resistance elements. The standard does not cover acoustic performance of fan coil units which is dealt with in ENXX. It is not the purpose of this standard to specify the tests used for production or field testing. NOTE for the purpose of remaining clauses the term “unit” is used to mean “fan coil unit” as defined in 3.1.
Identne prEN 16583:2013
Heat exchangers - Hydronic room fan coils units - Determination of the sound power level
This European Standard applies to hydronic fan coil units (FCU) as factory-made single assemblies which provide the functions or cooling and/or heating but do not include the source of cooling or heating. The standard covers both free delivery and ducted units with a maximum external static pressure due to duct resistance of 120 Pa max. This European standard provides methods for the determination of the acoustical performance of fan coil units, defining standard working condition and installation. It is not the purpose of this standard to specify the tests used for production or field testing. NOTE For the purpose of remaining clauses the term “unit” is used to mean “fan coil unit” as defined in 3.1 of prEN 1397:2013.
Nuclear instrumentation - Constructional requirements and classification of radiometric gauges (IEC 62598:2011)
This International Standard applies to the manufacture and installation of electrical measuring systems and instruments utilizing radioactive sources (radiometric gauges, hereinafter called gauges). It also applies to source housings intended for use in the aforementioned measuring systems. This standard applies to equipment, which is not related to power production or to the fuel cycle. It does not apply to portable gauges which, because of their construction and purposes for use, are intended to be operated as mobile equipment and it does not apply to gauges operated with X-ray tubes, but it can be analogously applicable to these gauges. The object of this standard is to specify constructional requirements for the design of instruments utilizing radioactive sources in regard of radiation protection. This standard does not take into account mechanical or electrical hazards.