Elektrotechnické inženýrství

Oblast zaměření: Navigační přístroje
Komise : IEC/TC 80 (Maritime navigation and radiocommunication equipment and systems)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 7.07.2020
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This part of IEC 61924 specifies the minimum requirements for the design, manufacture, integration, methods of testing and required test results for an integrated navigation system (INS) to comply with the International Maritime Organization (IMO) requirements of Resolution MSC.252(83), as amended by Resolution MSC.452(99). In addition, it takes account of IMO Resolution A.694(17) to which IEC 60945 is associated. When a requirement in this document is different from IEC 60945, the requirement of this document takes precedence.

For Bridge Alert Management, IMO Resolution MSC.302(87) supersedes IMO Resolution MSC.252(83). Accordingly, this document incorporates references to IEC 62923-1 and IEC 62923-2 which are associated with Resolution MSC.302(87) for requirements and tests where applicable. This document indicates which requirements and associated tests of MSC.252(83) have been superseded by MSC.302(87).

NOTE All text of this document, whose wording is identical to that in IMO Resolution MSC.252(83), as amended by MSC.452(99) is printed in italics and the Resolution and paragraph number indicated between brackets.

Oblast zaměření: Přístroje jaderné techniky
Komise : IEC/SC 45A (Instrumentation and control of nuclear facilities)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 7.07.2020
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General

This international Standard provides criteria for spent fuel pool instrumentation for nuclear power generating stations and other nuclear facilities. The Standard applies to water filled spent fuel pools where the water volume is necessary to prevent a release of fission products that exceeds allowed operational limits.

Purpose

The purpose of this Standard is to establish design, performance, qualification, and display criteria for spent fuel pool instrumentation for normal operation, anticipated operational occurrences, design basis events, and design extension conditions (including severe accident conditions).

Application

This Standard applies only to instrumentation for monitoring the condition of the spent fuel pool, i.e., pool level, pool temperature, and area radiation. It does not apply to control systems that are related to the spent fuel pool such as: the pool cooling systems, isolation valve control, crane instrumentation and control, or refuelling machine instrumentation and control.

In some plant designs some of the instruments covered by this Standard also provide inputs to protection system functions. Such instruments must also comply with requirements for protection systems that are given elsewhere.

The requirements applied to the systems and components performing these functions depend on how they contribute to the safety of the spent fuel pool.

Oblast zaměření: Vláknová optika
Komise : IEC/SC 86A (Fibres and cables)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 14.07.2020
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This part of IEC 60794-4, which is a family specification, specifies the optical fibre, cable elements, cable construction requirements, main requirements for installation and operating conditions, cable design characteristics and test for OPPC (optical phase conductor), used for carrying current as well as communication and data transmission. The corresponding environmental declaration may be built according to IEC TR 62839-1.

The OPPC is a substitute for a conventional phase conductor containing optical fibres. Usually the fibres are embedded loosely in protective buffer tubes. To fulfil mechanical and electrical requirements; an armouring of one or more layers with aluminium, aluminium alloy, and aluminium clad steel, galvanized steel or a mixture of them is helically stranded.

Oblast zaměření: Elektromechanické součástky
Komise : IEC/SC 48B (Connectors)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 14.07.2020
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This part of IEC 63171 describes shielded or unshielded circular connectors with up to 8 ways and M8 or M12 screw-locking, typically used for data transmission up to 600 MHz and with current-carrying capacity up to 4 A, for use in areas with harsh environmental conditions. These connectors consist of fixed and free connectors either rewirable or non-rewirable. Male connectors have square cross-section contacts, for data and power transmission.

M8 and M12 describe the dimensions of the threads of the screw-locking mechanism of these two sets of circular connectors. M12 describes the dimensions of the styles according IEC 61076-2-101 of this size of circular connectors, whereas M8 describes the dimensions of the styles according IEC 61076-2-104 of the second size of circular connectors covered by this part of IEC 63171.

The coding provided by this standard prevents the mating of accordingly coded male or female connectors to other similarly sized interfaces covered by other standards. The shielded and unshielded connectors are interoperable.

The connectors are interoperable with connectors according IEC 63171-2, except the locking and sealing system provided by the M8 or M12 outer shell.

The shielded and unshielded connectors are interoperable for their internal transmission performance and can be exchanged. The shielded version has improved EMC and coupling properties.

Oblast zaměření: Elektromechanické součástky
Komise : IEC/SC 48B (Connectors)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 14.07.2020
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This part of IEC 61076 constitutes a detail product specification for 8-way connectors for data transmission with frequencies up to 600 MHz.

It covers protective housings for upgrading existing 8-way shielded and unshielded connectors utilizing the interface described in the IEC 60603-7 series to IP65/IP67 rating according to IEC 60529, for use in industrial environments.

The housings cover a variety of different locking mechanisms according to this part of IEC 61076 and a variety of different mounting configurations and termination types which are detailed in the IEC 60603-7 series.

Common mating configurations for all variants are defined in IEC 60603-7. The mating dimensions for the housings under Clause 3 allow the mating conditions under IEC 60603-7 to be fulfilled.

The fully assembled variants (connectors) described in this part of IEC 61076 incorporate fully compliant IEC 60603-7 series fixed and free connectors.

Komise : IEC/TC 85 (Measuring equipment for electrical and electromagnetic quantities)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 21.07.2020
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Amendment

Oblast zaměření: Elektromechanické součástky
Komise : IEC/TC 91 (Electronics assembly technology)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 28.07.2020
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This test method measures changes to the surface insulation resistance of a pre-selected material set on a representative test coupon and quantifies the deleterious effects of improperly used materials and processes that may lead to decreases in electrical resistance.

An assembly process involves a number of different process materials including solder flux, solder paste, solder wire, underfill materials, adhesives, staking compounds, temporary masking materials, cleaning solvents, conformal coatings and more. The test employs two different test conditions of 85 °C and 85% relative humidity (RH), preferred for a process that includes cleaning, or 40 °C and 90% relative humidity (RH), preferred for processes where no cleaning is involved. 

Note     40°C and 93% RH may be used as an alternative to 40°C and 90% RH.  Additional information is provided in 5.4 and Annex A.5.1.

Testing is material (set) and process / equipment specific. Qualifications should be performed using the production intent equipment, processes and materials.

Oblast zaměření: Elektromechanické součástky
Komise : IEC/TC 91 (Electronics assembly technology)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 28.07.2020
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This part of IEC 61189-5 is used to quantify the deleterious effects of flux residues on surface insulation resistance (SIR) in the presence of moisture.

Interdigitated comb patterns comprising long parallel electrodes on an IPC B53 standardized test coupon shall be used for the evaluation. Coupons shall be conditioned and measurements taken at a high temperature and humidity. The electrodes are electrically biased during conditioning to facilitate electrochemical reactions, see Figure 1 and Figure 3.

Reference should be made to IEC TR 61189-5-506 that examined different geometry comb patterns: 400mm x 500mm; 400mm x 200mm; and 318mm x 318mm.

 

 

Figure 1 - SIR Pattern

 

 

 

 

Specifically, this method is designed to simultaneously assess:

Leakage current caused by ionized water films and electrochemical degradation of test vehicle, (corrosion, dendritic growth).

Provide metrics that can appropriately be used for binary classification (e.g. go/no go; pass/fail)

Compare, rank or characterize materials and processes.

This test is carried out at high humidity and heat conditions.

Oblast zaměření: Fotovoltaické systémy
Komise : IEC/TC 82 (Solar photovoltaic energy systems)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 28.07.2020
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This International Standard is applicable to low voltage Photovoltaic Earth-Fault Protection Equipment (PV-EFPE) whose function is to detect, interrupt, and warn system operators of earth faults in solar photovoltaic arrays.

NOTE In the context of this standard, the PV array may include connected wiring and equipment. The required coverage of the monitoring and protection is defined in PV installation codes and standards, including aspects such as whether or not the coverage is required to include battery circuits, the dc outputs of dc-dc converters, etc.

PV-EFPE may be stand-alone or integrated into other equipment such as PV power conversion equipment, a PV combiner, etc. 

Note  At present the IEC definition of low voltage for d.c. systems is 1500V or less

This International Standard specifies:

- the types and levels of the monitoring and protection functions that may be provided

- the nature and timing of responses to earth faults

- test methods for validating the monitoring and protection functions provided

- requirements for functional safety and fault tolerance

- requirements for product safety including construction, environmental suitability, markings, documentation, and testing

Oblast zaměření: Polovodiče
Komise : IEC/TC 110 (Electronic display devices)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 4.08.2020
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This part of IEC-62595-2-5 specifies measurement methods for optical quantities of convex and concave cylindrical light sources. The NPLS may have either continuous, distinct, segmented or block-wised light radiating surface, for example, OLED panels, integrated LEDs, integrated mini-LEDs, micro-LEDs, laser diodes, each either being monochromatic or polychromatic. 

Oblast zaměření: Vláknová optika
Komise : IEC/SC 86B (Fibre optic interconnecting devices and passive components)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 6.08.2020
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This document applies to the family of fibre optic filters. These components have all of the following general features:

they are passive for the reason that they contain no optoelectronic or other transducing elements which can process the optical signal launched into the input port;

they modify the spectral intensity distribution in order to select some wavelengths and inhibit others;

they are fixed, i.e. the modification of the spectral intensity distribution is fixed and cannot be tuned;

they have input and output ports or a common port (having both functions of input and output) for the transmission of optical power; the ports are optical fibre or optical fibre connectors;

they differ according to their characteristics. They can be divided into the following categories:

short-wave pass (only wavelengths lower than or equal to a specified value are passed);

long-wave pass (only wavelengths greater than or equal to a specified value are passed);

band-pass (only an optical window is allowed);

notch (only an optical window is inhibited);

gain flattening (compensating the spectral profile of the device).

It is also possible to have a combination of the above categories.

This document provides the generic information including terminology of IEC 61753-04x series documents. Published IEC 61753-04x series documents are listed in the Bibliography.

This document establishes uniform requirements for the following:

optical, mechanical and environmental properties.

Oblast zaměření: Elektromechanické součástky
Komise : IEC/TC 91 (Electronics assembly technology)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 11.08.2020
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This part of IEC 60068 outlines Test T, applicable to devices with leads and leads themselves. Soldering tests for surface mounting devices (SMD) are described in IEC 60068-2-58.

This standard provides procedures for determining the solderability and resistance to soldering heat of devices in applications using solder alloys, which are eutectic or near eutectic tin lead (Pb), or lead-free alloys.

The procedures in this standard include the solder bath method and soldering iron method.

The objective of this standard is to ensure that component lead or termination solderability meets the applicable solder joint requirements of IEC 61191-3 and IEC 61191-4. In addition, test methods are provided to ensure that the component body can be resistant to the heat load to which it is exposed during soldering.

NOTE Information about wetting time and wetting force can be obtained by test methods using a wetting balance. See IEC 60068-2-69 (solder bath and solder globule method for SMDs).

Oblast zaměření: Vláknová optika
Komise : IEC/SC 86C (Fibre optic systems and active devices)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 11.08.2020
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This part of IEC 61280 specifies two main methods for the determination of low BER values by making accelerated measurements. These include the variable decision threshold method (Clause 5) and the variable optical threshold method (Clause 6). In addition, a third method, the sinusoidal interference method, is described in Annex B.

Komise : IEC/SC 62B (Diagnostic imaging equipment)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 11.08.2020
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Amendment

Oblast zaměření: Vláknová optika
Komise : IEC/SC 86B (Fibre optic interconnecting devices and passive components)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 18.08.2020
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This part of IEC 61300 evaluates the effect of loads which is possible to occur when fibre optic devices are exposed to critical situations such as being stepped on, being run over by vehicle tyres, when an evenly-distributed static load is applied to the top surface of a street cabinet or when a load is applied to a street cabinet’s open door.

Oblast zaměření: Vláknová optika
Komise : IEC/SC 86B (Fibre optic interconnecting devices and passive components)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 18.08.2020
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This part of IEC 61753-111 contains the minimum tests, test severities and measurement requirements which a sealed fibre optic closure need to meet in order to be categorised as meeting the IEC standard  for Category G – Ground, as defined in Table A.14 of IEC 61753‑1:2018. Free breathing closures are not covered in this standard.

Oblast zaměření: Vláknová optika
Komise : IEC/SC 86A (Fibres and cables)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 18.08.2020
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This part of IEC 60794-1 applies to optical fibre cables for use with telecommunications equipment and devices employing similar techniques, and to cables having a combination of both optical fibres and electrical conductors.

An objective of this specification is to define general requirements and methodology guidance applicable to all of the cable test methods of the 60794-1-2 set.

A second objective of this document is to provide the end user with an overview of the different test methods contained in the IEC 60794-1 series numbered -Xnn. Table 1 shows the different parts. 

Table 1 – Document overview

Test methods

IEC reference

Previous compendium reference

Test method category reference letter

General guidance

IEC 60794-1-2

IEC 60794-1-2

-

Mechanical

IEC 60794-1-1nn

IEC 60794-1-21 (2015)

Methods ‘E’

Environmental

IEC 60794-1-2nn

IEC 60794-1-22 (2017)

Methods ‘F’

Cable elements

IEC 60794-1-3nn

IEC 60794-1-23 (2019)

Methods ‘G’

Electrical

IEC 60794-1-4nn

IEC 60794-1-24 (2014)

Methods ‘H’

NOTE 1:  The compendium reference specifications detailed in column 3 continue in force until all of the test methods therein are revised into the single-subject documents using the new numbering scheme.

NOTE 2:  For existing test methods, “nn” is test method number.  For new test methods, “nn” is an incremental number following the last test method number for that test category.

NOTE 3: Several numbers in the test method numbering sequence are missing. The reasons for these omissions are historical. To avoid confusion, the existing numbering sequence has been retained.

 

 

These documents define test procedures to be used in establishing uniform requirements for the geometrical, transmission, material, mechanical, ageing (environmental exposure) and climatic properties of optical fibre cables, and electrical requirements where appropriate.

Throughout the documents, the wording "optical cable" can also include optical fibre units, microduct fibre units, etc. 

The secondary objective of this document is to provide the end user with useful guidance when testing optical fibre cables. 

Oblast zaměření: Navigační přístroje
Komise : IEC/TC 80 (Maritime navigation and radiocommunication equipment and systems)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 18.08.2020
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This document specifies requirements, methods of testing and required test results where standards are needed to provide a basic level of protection against cyber incidents (i.e. malicious attempts, which actually or potentially result in adverse consequences to equipment, their networks or the information that they process, store or transmit) for:

shipborne radio equipment forming part of the global maritime distress and safety system (GMDSS) mentioned in the International Convention for Safety of Life at Sea (SOLAS) as amended, and by the Torremolinos International Convention for the Safety of Fishing Vessels as amended and to other shipborne radio equipment, where appropriate;

shipborne navigational equipment mentioned in the International Convention for Safety of Life at Sea (SOLAS) as amended, and by the Torremolinos International Convention for the Safety of Fishing Vessels as amended,

other shipborne navigational aids, and Aids to Navigation (AtoN), where appropriate.

The document is organised as a series of Modules dealing with different aspects. The document considers both normal operation of equipment and the maintenance of equipment. For each Module a statement is provided indicating whether the Module applies during normal operation or in maintenance mode.

Communication initiated from navigation or radiocommunication equipment outside of items a), b) and c) above, for example ship side to other ship or shore side, are outside of the scope of this standard.

This standard does not address cyber-hygiene checks, e.g. anti-malware scanning, etc., performed outside of the cases defined in this standard.

Oblast zaměření: Vláknová optika
Komise : IEC/SC 86A (Fibres and cables)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 25.08.2020
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Amendment