Hlavní oblasti

Oblast zaměření: Měřidla
Komise : CEN/SS F05 (Measuring Instruments)
Původce: CEN
K připomínkám do: 23.12.2019
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This part of ISO 5167 specifies the geometry and method of use (installation and operating conditions) of nozzles and Venturi nozzles when they are inserted in a conduit running full to determine the flowrate of the fluid flowing in the conduit.

This part of ISO 5167 also provides background information for calculating the flowrate and is applicable in conjunction with the requirements given in ISO 5167‑1.

This part of ISO 5167 is applicable to nozzles and Venturi nozzles in which the flow remains subsonic throughout the measuring section and where the fluid can be considered as single-phase. In addition, each of the devices can only be used within specified limits of pipe size and Reynolds number. It is not applicable to the measurement of pulsating flow. It does not cover the use of nozzles and Venturi nozzles in pipe sizes less than 50 mm or more than 630 mm, or where the pipe Reynolds numbers are below 10 000.

This part of ISO 5167 deals with

a)    three types of standard nozzles

1)    ISA[1] 1932 nozzle;

2)    the long radius nozzle[2];

3)    the throat-tapped nozzle

b)    the Venturi nozzle.

The three types of standard nozzle are fundamentally different and are described separately in this part of ISO 5167. The Venturi nozzle has the same upstream face as the ISA 1932 nozzle, but has a divergent section and, therefore, a different location for the downstream pressure tappings, and is described separately. This design has a lower pressure loss than a similar nozzle. For all of these nozzles and for the Venturi nozzle direct calibration experiments have been made, sufficient in number, spread and quality to enable coherent systems of application to be based on their results and coefficients to be given with certain predictable limits of uncertainty.

 

[1] ISA is the abbreviation for the International Federation of the National Standardizing Associations, which was superseded by ISO in 1946

[2] The long radius nozzle differs from the ISA 1932 nozzle in shape and in the position of the pressure tappings.

Oblast zaměření: Kotle pro ústřední vytápění
Komise : CEN/TC 109 (Central heating boilers using gaseous fuels)
Původce: CEN
K připomínkám do: 23.12.2019
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This document is applicable to gas-fired appliances producing domestic hot water. It applies to condensing combination boilers with passive flue heat recovery device (PFHRD) that have:

—    a heat input not exceeding 400 kW,

—    a hot water storage tank capacity (if any) not exceeding 2000 l,

—    a  declared load profile between M to 4XL.

In the case of combination boilers, with or without storage tank, domestic hot water production is integrated or coupled, the whole being marketed as a single unit.

For this standard, some tests and calculation results of EN 13203‑2:2018 are used to calculate the energy consumptions.

Komise : CEN/CLC/JTC 3 (Quality Management and corresponding general aspects of medical devices)
Původce: CEN
K připomínkám do: 23.12.2019
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Amendment

Oblast zaměření: Tlakové nádoby
Komise : CEN/TC 54 (Unfired pressure vessels)
Původce: CEN
K připomínkám do: 23.12.2019
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Amendment

Komise : CEN/CLC/JTC 3 (Quality Management and corresponding general aspects of medical devices)
Původce: CEN
K připomínkám do: 23.12.2019
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Amendment

Oblast zaměření: Požární ochrana
Komise : CEN/TC 191 (Fixed firefighting systems)
Původce: CEN
K připomínkám do: 23.12.2019
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This document specifies the evaluation of the fire performance of water mist systems for fire protection of atriums, with low or medium fire load where the fire load is no greater than 1,5 m height.

Oblast zaměření: Bezpečnost silničního provozu
Komise : CEN/TC 226 (Road equipment)
Původce: CEN
K připomínkám do: 23.12.2019
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This document specifies construction products which are white and yellow, removable or non-removable, preformed road marking materials, under the form of tape, cold plastic, thermoplastics (without addition of drop-on materials during application), to be used for permanent and/or temporary road markings in circulation areas. Other preformed road marking products and colours intended for road markings are not covered in this document.

This document also gives specifications for the evaluation of conformity for white and yellow, removable or non-removable, preformed road materials under the form of tape, cold plastic, thermoplastics to be used for permanent and/or temporary road markings in circulation areas including type testing and factory production control.

This document includes an Annex ZA for permanent tapes, preformed cold plastic road marking and thermoplastic road marking with the clauses addressing the provisions of the EU Construction Product Regulation for permanent road marking.

Oblast zaměření: Armatury
Komise : CEN/TC 69 (Industrial valves)
Původce: CEN
K připomínkám do: 23.12.2019
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This document specifies minimum general requirements for butterfly valves having metallic bodies for use with all type of pipe end connections (e.g. wafer, lug, flange, butt welding) and used for isolating, regulating or control applications.

The PN and Class ranges are:

—    PN 2,5; PN 6; PN 10; PN 16; PN 25; PN 40; PN 63; PN 100; PN 160;

—    Class 150; Class 300; Class 600; Class 900.

The size range is:

—    DN 20; DN 25; DN 32; DN 40; DN 50; DN 65; DN 80; DN 100; DN 125; DN 150; DN 200; DN 250; DN 300; DN 350; DN 400; DN 450; DN 500; DN 600; DN 700; DN 750; DN 800; DN 900; DN 1 000; DN 1 050; DN 1 100; DN 1 200; DN 1 400; DN 1 500; DN 1 600; DN 1 800; DN 2 000; DN 2 200; DN 2 400; DN 2 600; DN 2 800; DN 3 000; DN 3 200; DN 3 400; DN 3 600; DN 3 800; DN 4 000.

DN 750 and DN 1 050 are used only for Class 150 and Class 300.

Intermediate DNs are allowed upon agreement between manufacturer and customer.

This document applies to metallic butterfly valves used for all industrial applications. Additional requirements given in the relevant application standards may apply to butterfly valves used for more specific applications (e.g. for the water industry, the chemical and petrochemical process industry, the gas distribution industry).

NOTE 1       Industrial applications cover water applications.

For valves subject to European legislation on pressure equipment, EN 16668 applies together with this document.

For industrial process control valves, EN 1349 and EN 60534-2-1 apply together with this document.

For water supply application, EN 1074-1 and EN 1074-2 apply together with this document.

NOTE 2       Butterfly valves for water supply application do not comply with Annex ZA and are not CE marked because they are excluded from the pressure equipment European legislation.

NOTE 3       The range of DN, applicable to each PN, for wafer and wafer lug valve types is as given in the appropriate part of EN 1092 for Type 11 flanges for the applicable material. The range of DN, applicable to each PN, for flanged valve types is as given in the appropriate part of EN 1092 for Type 21 flanges for the applicable material.

The correspondence between DN and NPS is given for information in Annex D.

Oblast zaměření: Systémy zpracování informací
Komise : CEN/TC 278 (Intelligent transport systems)
Původce: CEN
K připomínkám do: 23.12.2019
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This European Standard (EN 16157 series) specifies and defines component facets supporting the exchange and shared use of data and information in the field of traffic and travel.

The component facets include the framework and context for exchanges, the modelling approach, data content, data structure and relationships.

This European Standard is applicable to:

—    Traffic and travel information which is of relevance to road networks (non-urban and urban),

—    Public transport information that is of direct relevance to the use of a road network (e.g. road link via train or ferry service),

—    Traffic and travel information in the case of Cooperative intelligent transport systems (C-ITS).

This European Standard establishes specifications for data exchange between any two instances of the following actors:

—    Traffic Information Centres (TICs),

—    Traffic Control Centres (TCCs),

—    Service Providers (SPs),

Use of this European Standard may be applicable for use by other actors.

This European Standard series covers, at least, the following types of informational content:

—    Road traffic event information – planned and unplanned occurrences both on the road network and in the surrounding environment,

—    Operator initiated actions,

—    Road traffic measurement data, status data, and travel time data,

—    Travel information relevant to road users, including weather and environmental information,

—    Road traffic management information and instructions relating to use of the road network.

This part of the CEN/TS 16157 series specifies the informational structures, relationships, roles, attributes and associated data types required for publishing variable message sign information within the Datex II framework. This is specified in two publications, a DATEX II VMS Table Publication sub-model and a VMS Publication sub-model, which are part of the DATEX II platform independent model, but this part excludes those elements that relate to:

—    location information which are specified in EN 16157‑2,

—    common information elements, which are specified in EN 16157‑7,

—    situation information which are specified in EN 16157‑3.

The VMS Table Publication supports the occasional exchange of tables containing generally static reference information about deployed VMS which enable subsequent efficient references to be made to pre-defined static information relating to those VMS. The VMS Publication supports the exchange of the graphic and textual content of one or several VMS plus any status information on device configuration that aid the comprehension of the informational content. This content is potentially subject to rapid change.

These publications are not intended to support the control or configuration of VMS equipment. Each is part of the DATEX II platform independent model.

Komise : IEC/TC 89 (Fire hazard testing)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 24.12.2019
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This part of IEC 60695-7 gives a brief summary of the test methods that are in common use in the assessment of the toxicity of fire effluent. It includes special observations on their relevance to real fire scenarios and gives recommendations on their use.

It advises which tests provide toxic potency data that are relevant to real fire scenarios, and which are suitable for use in fire hazard assessment and fire safety engineering.

The list of test methods is not to be considered exhaustive.

This summary cannot be used in place of published standards which are the only valid reference documents.

This basic safety publication is intended for use by technical committees in the preparation of standards in accordance with the principles laid down in IEC Guide 104 and ISO/IEC Guide 51.

One of the responsibilities of a technical committee is, wherever applicable, to make use of basic safety publications in the preparation of its publications. The requirements, test methods or test conditions of this basic safety publication will not apply unless specifically referred to or included in the relevant publications.

Komise : IEC/TC 89 (Fire hazard testing)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 24.12.2019
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This part of IEC 60695 specifies the glow-wire apparatus and common test procedure to simulate the effects of thermal stresses which may be produced by heat sources such as glowing elements or overloaded resistors, for short periods, in order to assess the fire hazard by a simulation technique.

The test procedure described in this standard is a common test procedure intended for the small-scale tests in which a standardized electrically heated wire is used as a source of ignition.

It is a common part of the test procedures applied to end products and to solid electrical insulating materials or other solid combustible materials.

A detailed description of each particular test procedure is given in the respective standards IEC 60695-2-11, IEC 60695-2-12 and IEC 60695-2-13.

This basic safety publication is intended for use by technical committees in the preparation of standards in accordance with the principles laid down in IEC Guide 104 and ISO/IEC Guide 51.

One of the responsibilities of a technical committee is, wherever applicable, to make use of basic safety publications in the preparation of its publications. The requirements, test methods or test conditions of this basic safety publication will not apply unless specifically referred to or included in the relevant publications.

Oblast zaměření: Vláknová optika
Komise : IEC/SC 86A (Fibres and cables)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 24.12.2019
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This part of IEC 60793 establishes uniform requirements for the mechanical characteristic: fibre curl or latent curvature in uncoated optical fibres, i.e. a specified length of the fibre has been stripped from coating. Fibre curl has been identified as an important parameter for minimizing the splice loss of optical fibres when using passive alignment fusion splicers or active alignment mass fusion splicers.

Two methods are recognized for the measurement of fibre curl, in uncoated optical fibres:

method A: side view microscopy;

method B: laser beam scattering.

Both methods measure the radius of curvature of an uncoated fibre by determining the amount of deflection that occurs as an unsupported fibre end is rotated about the fibre's axis. Method A uses visual or digital video methods to determine the deflection of the fibre while method B uses a line sensor to measure the maximum deflection of one laser beam relative to a reference laser beam.

By measuring the deflection behaviour of the fibre as it is rotated about its axis and understanding the geometry of the measuring device, the fibre's radius of curvature can be calculated from simple circular models, the derivation of which are given in Annex C.

Both methods are applicable to type B optical fibres as described in the IEC 60793 series.

Method A is the reference test method, used to resolve disputes.

Oblast zaměření: Fotovoltaické systémy
Komise : IEC/TC 82 (Solar photovoltaic energy systems)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 24.12.2019
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This part of IEC 60904 describes the procedures used to measure the dependence of any electrical parameter (Y) of a photovoltaic (PV) device with respect to a test parameter (X) and to determine the degree at which this dependence is close to an ideal linear (straight-line) function. It also gives guidance on how to consider deviations from the ideal linear dependence and in general on how to deal with non-linearities of PV device electrical parameters. Typical device parameters are the short-circuit current ISC, the open-circuit voltage VOC and the maximum power Pmax. Typical test parameters are the temperature T and the irradiance G. However, the same principles described in this standard can be applied to any other test parameter with proper adjustment of the procedure used to vary the parameter itself.

Performance evaluations of PV modules and systems, as well as performance translations from one set of temperature and irradiance to another, frequently rely on the use of linear equations (see for example IEC 60891, IEC 61853-1, IEC 61829 and IEC 61724-1). This standard lays down the requirements for linear dependence test methods, data analysis and acceptance limits of results to ensure that these linear equations will give satisfactory results. Such requirements prescribe also the range of the temperature and irradiance over which the linear equations may be used. This standard gives also a procedure on how to correct for deviations of the short-circuit current ISC from the ideal linear dependence on irradiance (linearity) for PV devices, regardless of whether they are classified linear or non-linear according to the limits set in Clause 9.7 of this standard. The impact of spectral irradiance distribution and spectral mismatch is considered for measurements at solar simulators as well as under natural sunlight.

The measurement methods described here apply to all PV devices, with some caution to be used for multi-junction PV devices, and are intended to be carried out on a device, or in some cases on an equivalent device of identical technology, that is stable according to the criteria set in the relevant part of IEC 61215. These measurements are meant to be performed prior to all measurements and correction procedures that require a linear device or that prescribe restrictions for non-linear devices.

The main methodology used in this standard is based on a fitting procedure in which a linear (straight-line) function is fitted to a set of measured data points {Xi,Yi}. The linear function uses a least-squares fit calculation routine, which in the most advanced analysis also accounts for the expanded combined uncertainty (k=2) of the measurements. The linear function crosses the origin in the case of short-circuit current data versus irradiance. The deviation of the measured data from the ideal linear function is also calculated and limits are prescribed for the permissible percentage deviation.

Procedures to determine the deviation of the Y(X) dependence from the linear (straight-line) function are described in Clauses 6 (measurements under natural sunlight and with solar simulator), 7 (differential spectral responsivity measurements) and 8 (measurements via two-lamp and N-lamp method). Data analyses to determine the deviations from the linear function are given in Clause 9.

A device is considered linear for the specific measured dependence Y(X), when it meets the requirements of 9.7.

Oblast zaměření: Fotovoltaické systémy
Komise : IEC/TC 82 (Solar photovoltaic energy systems)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 24.12.2019
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This standard applies to equipment used for the detection and optionally the interruption of electric d.c. arcs in photovoltaic (PV) system circuits. The standard covers test procedures for the detection of serial arcs within PV circuits, and the response times of equipment employed to interrupt the arcs. 

The standard defines reference scenarios according to which the testing shall be conducted. This standard covers equipment connected to systems not exceeding a maximum PV source circuit voltage of 1500 V d.c..

The detection of parallel circuit arcs is not covered in this document.  This standard is not applicable to d.c. sources or applications other than PV d.c. sources.

NOTE Parallel arc detection is under consideration for a future edition.

Oblast zaměření: Elektrická vozidla
Komise : IEC/TC 69 (Electric road vehicles and electric industrial trucks)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 24.12.2019
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This part of IEC 61980 applies to the supply deviceequipment for charging electric road vehicles using the wireless methods transfer of electric power from the supply network to electric road vehicles, Including PHEV, for purposes of supplying electric energy to the RESS (Rechargeable energy storage system) and/or other on-board electrical systems in an operational state when connected to the supply network, at standard supply voltages ratings per IEC 60038 up to 1 000 V AC and up to 1 500 V DC.

Electric road vehicles (EV) cover road vehicles, including plug-in hybrid road vehicles (PHEV) that derive all or part of their energy from on-board rechargeable energy storage systems (RESS)

This standard also applies to Wireless Power Transfer (WPT) equipment supplied from on-site storage systems (e.g. buffer batteries).

The aspects covered in this standard include,

the characteristics and operating conditions of a supply device,

the specification for required level of electrical safety of a supply device,

requirements for basic communication for safety and process matters if required by a WPT systembetween EV device and vehicle to enable and control WPT,

requirements for basic positioning, efficiency, alignment and other activities to enable WPT and process matters if required by a WPT system,

specific EMC requirements for WPT systemsa supply device.

The following aspects are under consideration for future documents:

requirements for two- and three-wheel vehicles,

requirements for MF-WPT systems supplying power to EVs in motion, and

requirements for bidirectional power transfer.

This standard applies to:

supply device designed to operate at an atmospheric pressure between 860 hPa and 1060 hPa,

supply device designed to be installed at an altitude of up to 2 000 m

This standard does not apply to:

safety aspects related to maintenance,

WPT system for trolley buses, rail vehicles and vehicles designed primarily for use off-road,

any safety or EMC requirements for the vehicle sideEV power circuit (EVPC), which is covered by ISO 6469 (all parts), ISO 19363 or future technology specific ISO standards,.

Komise : IEC/SC 62A (Common aspects of electrical equipment used in medical practice)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 24.12.2019
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This document specifies a framework of general requirements, guidance, for organizations in the application of risk management before, during and after the connection of a health it system within a health it infrastructure, by addressing the key properties of safety, effectiveness and security whilst engaging appropriate stakeholders.

Oblast zaměření: Magnetické součástky
Komise : IEC/TC 51 (Magnetic components and ferrite materials)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 24.12.2019
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This International Standard specifies a test method for the mechanical strength of cores made of magnetic oxides. This test method is suitable for most of the E-cores, ETD-cores, I-cores and Ring-cores but other core types such as U-cores could be tested according to a derived method agreed by the parties concerned. This standard is also applicable to the mechanical strength measurement of magnetic powder cores.

Oblast zaměření: Elektrická trakční zařízení
Komise : IEC/TC 9 (Electrical equipment and systems for railways)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 24.12.2019
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This part of IEC 62973 applies to secondary sealed nickel-metal hydride battery technologies for auxiliary power supply systems used on rolling stock.

This document specifies the requirements of the characteristics and tests for the sealed nickel-metal hydride cells and supplements of IEC 62973-1 which is applied to any rolling stock types (e.g. light rail vehicles, tramways, streetcars, metros, commuter trains, regional trains, high speed trains, locomotives, etc.). Unless otherwise specified, the requirements of IEC 62973-1 apply.

This document specifies the requirements of the interface between the batteries and the battery charger.

Oblast zaměření: Točivé elektrické stroje
Komise : IEC/TC 2 (Rotating machinery)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 24.12.2019
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This standard applies to test methods for the measurement of the operational characteristics of brushes designed to operate on commutating and slip ring machines under specified test conditions.

By extension some tests may be relevant for other kind of sliding electrical contacts for electrical appliances.