Elektrotechnické inženýrství

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

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

Komise : IEC/SC 62B (Diagnostic imaging equipment)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 25.08.2020
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This part of IEC 61223-3 applies to dental cone-beam computed tomography x-ray equipment, hereafter also called dental cbct equipment that conforms to IEC 60601-2-63 Ed. 1.1

NOTE 1:           dental cbct equipment is a subset of dental extra-oral X-ray equipment.

NOTE 2:           Dental extra-oral x- ray equipment may provide one or more of panoramic, cephalometric, tomosynthesis and dental CBCT imaging modalities, all of which are in the scope of the IEC 60601-2-63 safety standard.

This standard applies to acceptance tests and constancy tests on dental cone-beam computed tomography x-ray equipment.

The aim of acceptance tests is to verify compliance of the installation or major service action with specifications affecting the image quality, radiation output and patient positioning.

The requirements specified in this standard are minimal requirements. The manufacturer may establish criteria for the tests described here that exceed the levels contained in this standard.

Constancy tests are performed to ensure that the functional performance of me equipment meets established criteria and to enable the early recognition of changes in the properties of components of the me equipment, and to verify compliance with specifications affecting the image quality, radiation output and patient positioning.

This standard also contains requirements for the accompanying documents associated with acceptance and constancy testing of the dental cbct equipment.

This standard does not apply to:

aspects of thermal, EMC, mechanical and electrical safety;

aspects of mechanical, electrical and software performance, unless they are essential for performing the acceptance tests and constancy tests, and directly affect image quality, radiation output and patient positioning.

NOTE 3:           Such aspects are generally addressed by the IEC 60601-1 series.

Equipment in the scope of IEC 61223-3-5 is excluded from the scope of this standard.

Dental extra-oral x-ray equipment may provide modalities which are in the scope of the IEC 61223-3-4 standard. In this case, both parts of the IEC 61223 series apply.

Oblast zaměření: Elektromechanické součástky
Komise : IEC/SC 48B (Connectors)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 25.08.2020
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This part of IEC 61076 covers 8-way, shielded, free and fixed rectangular connectors for I/O and data transmission with frequencies up to 500 MHz. It is intended to specify the common dimensions, mechanical, electrical and environmental characteristics and tests for this family of connectors.

Connectors complying with this standard provide an ingress protection level of IP20; however, they are particularly suited for industrial environments with a high level of vibration.

NOTE 1 In terms of the MICE system as defined in ISO/IEC 11801-1, the connector matches the requirements of the M3I1C3E3 levels.

There are two classes of connectors defined in this document, indicated by “class A” and “class B” which distinguish by some electrical and mechanical characteristics to meet the particular sets of requirements of some industrial applications.

NOTE 2 Class A meets the requirements defined in Ed.1 of this standard.

NOTE 3 With the two classes A and B, the two codings Type I and II, and the two sets of transmission requirements according to the component categories Cat 5 and Cat 6A as defined in ISO/IEC 11801, this document specifies 2 x 2 x 2 = 8 variants.

All connectors covered by this standard feature a current-carrying capacity beyond the minimum requirement of 0,75 A per pin for an ambient temperature of 60° C as defined in ISO/IEC 11801‑1.

NOTE 4 The current-carrying capacity is given by the current-temperature derating defined in this standard and dependent on the wire size of the cable attached to the connector.

NOTE 5 With a current-carrying capacity of 0,5 A per pin and with matching the requirement of withstanding the test current of 2 A for unmating under load as defined in IEC 60512-99-002, the connectors covered by this standard support the highest Power over Ethernet level as defined by IEEE 802.3bt (100 W PoE++ Type 4).

Oblast zaměření: Elektromechanické součástky
Komise : IEC/TC 45 (Nuclear instrumentation)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 25.08.2020
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This International Standard is applicable to housed scintillators for registration and spectrometry of alpha-, beta-, gamma-, X-ray and neutron radiation.

The main parameters such, as a light output and intrinsic resolution, are established. The Standard specifies the requirements for the testing equipment and test methods the basic parameters of housed scintillators, such as:

the direct method is applicable to measure the light output of housed scintillators based on scintillation material. The housed scintillators certified by this method can be as working standard of housed scintillators (hereinafter - working standard) when performing measurements by a relative method of comparison.

the relative method of comparison with the working standard is applicable to housed scintillators based on the same scintillation material as the working standard.

The standard does not apply to gas or liquid scintillators and scintillators for counting and current modes.

The numerical values of the parameters should be set to the specific type of scintillators in the specifications.

Oblast zaměření: Vláknová optika
Komise : IEC/SC 86C (Fibre optic systems and active devices)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 2.09.2020
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This part of IEC 61290-1 applies to all commercially available optical amplifiers (OA) and optically amplified subsystems. It applies to OA using optically pumped fibres (OFA based on either rare-earth doped fibres or on the Raman effect), semiconductors (SOA), and waveguides (POWA).

NOTE The applicability of the test methods described in the present standard to distributed Raman amplifiers is for further study.

The object of this part of IEC 61290-1 is to establish uniform requirements for accurate and reliable measurements, by means of the optical power meter test method, of the following OA parameters, as defined in IEC 61291-1:

nominal output signal power;

gain;

polarization-dependent gain;

maximum output signal power;

maximum total output power.

NOTE All numerical values followed by (‡) are suggested values for which the measurement is assured. Other values can be acceptable upon verification.

This part of IEC 61290-1 applies to single-channel amplifiers. For multichannel amplifiers, the IEC 61290-10 series applies.