Hlavní oblasti

Komise : IEC/TC 72 (Automatic electrical controls)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 12.01.2021
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Amendment

Komise : IEC/TC 72 (Automatic electrical controls)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 12.01.2021
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Amendment

Oblast zaměření: Řízení procesů
Komise : IEC/SC 65A (System aspects)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 12.01.2021
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General applicability

This standard specifies general principles and processes for the management of alarm systems based on controls system and human-machine interfaces (HMI) for facilities in the process industries. It covers all alarms to be presented to the operator through the control system, which includes alarms from basic process control systems, annunciators, packaged systems (for example refrigeration machines), and safety instrumented systems.

The practices in this standard are applicable to continuous, batch, and discrete processes. There can be differences in implementation to meet the specific needs based on those process types.

In jurisdictions where the governing authorities (for example national, federal, state, province, county, city) have established process safety design, process safety management, or other requirements, in addition to the requirements of this standard, these should be taken into consideration.

The primary function within the alarm system is to notify operators of abnormal process conditions or equipment malfunctions and support the response. The alarm systems can include both the basic process control system (BPCS) and the safety instrumented system (SIS), each of which uses measurements of process conditions and logic to generate alarms. Figure 1 illustrates the concepts of alarm and response dataflow through the alarm system. The alarm system also includes a mechanism for communicating the alarm information to the operator via an HMI, usually a computer screen or an annunciator. Additional functions of the alarm system are an alarm and event log, an alarm historian, and the generation of performance metrics for the alarm system. There are external systems that can use the data from the alarm system. 

Figure 1 is not intended to represent physical wiring.

Oblast zaměření: Piezoelektrické prvky
Komise : IEC/TC 49 (Piezoelectric, dielectric a electrostatic devices and associated materials for frequency control, selection and detection)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 12.01.2021
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This part of IEC 60444 applies to the measurements of drive level dependence (DLD) of quartz crystal units. Two test methods (A and C) and one referential method (B) are described. “Method A”, based on the p-network according to IEC 60444-1, can be used in the complete frequency range covered by this part of IEC 60444. “Reference Method B”, based on the p-network or reflection method according to IEC 60444-1, IEC 60444-5 or IEC 60444-8 can be used in the complete frequency range covered by this part of IEC 60444. “Method C”, an oscillator method, is suitable for measurements of fundamental mode crystal units in larger quantities with fixed conditions.

NOTE     Measurement methods specified in this document is not only applicable to AT-cut but also applicable to other crystal cuts and vibration modes, such as doubly rotated cuts (IT,SC) and to tuning fork crystal units (by using a high impedance test fixture).

Oblast zaměření: Polovodiče
Komise : IEC/TC 47 (Semiconductor devices)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 12.01.2021
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This part of IEC 60749 establishes the procedure for testing, evaluating, and classifying devices and microcircuits according to their susceptibility (sensitivity) to damage or degradation by exposure to a defined field-induced charged device model (CDM) electrostatic discharge (ESD). All packaged semiconductor devices, thin film circuits, surface acoustic wave (SAW) devices, opto-electronic devices, hybrid integrated circuits (HICs), and multi-chip modules (MCMs) containing any of these devices are to be evaluated according to this document. To perform the tests, the devices are assembled into a package similar to that expected in the final application. This CDM document does not apply to socketed discharge model testers. This document describes the field-induced (FI) method. An alternative, the direct contact (DC) method, is described in Annex J.

The purpose of this document is to establish a test method that will replicate CDM failures and provide reliable, repeatable CDM ESD test results from tester to tester, regardless of device type. Repeatable data will allow accurate classifications and comparisons of CDM ESD sensitivity levels.

Oblast zaměření:
Komise : IEC/SC 46F (RF and microwave passive components)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 12.01.2021
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This part of IEC 61169, which is a sectional specification (SS), provides information and rules for the preparation of detail specifications (DS) for coaxial connectors with 10 mm inner diameter of outer conductor, characteristic impedance 50 Ω, series 4,3-10 with screw type, hand screw type or quick-lock type coupling, for an upper operating frequency limit of 6 GHz, for use in wireless telecommunication and wireless network applications in conjunction with appropriate transmission line types for these applications.

It also describes mating face dimensions for general purpose connectors, gauging information and tests selected from IEC 61169‑1, applicable to all detail specifications relating to 4,3‑10 series connectors.

This specification indicates the recommended performance characteristics to be considered when writing a detail specification and it covers test schedules and inspection requirements for assessment levels M and H.

Komise : IEC/TC 3 (Documentation, graphical symbols and representations of technical information)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 12.01.2021
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This document applies to the identification and marking of terminals of electrical equipment such as resistors, fuses, relays, contactors, transformers, rotating machines and, wherever applicable, to combinations of such equipment (e.g. assemblies), and also applies to the identification of terminations of certain designated conductors. It also provides general rules for the use of certain colours or alphanumeric notations to identify conductors with the aim of avoiding ambiguity and ensuring safe operation. These conductor colours or alphanumeric notations are intended to be applied in cables or cores, busbars, electrical equipment and installations.

This basic safety publication is primarily 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.

It is not intended for use by manufacturers or certification bodies. 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 of this basic safety publication will not apply unless specifically referred to or included in the relevant publications.

Komise : IEC/SC 77C (High power transient phenomena)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 19.01.2021
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This document defines the high-altitude electromagnetic pulse (HEMP) conducted environment that is one of the consequences of a high-altitude nuclear explosion.

Those dealing with this subject consider two cases:

–   high-altitude nuclear explosions;

–   low-altitude nuclear explosions.

For civil systems the most important case is the high-altitude nuclear explosion. In this case, the other effects of the nuclear explosion: blast, ground shock, thermal and nuclear ionizing radiation are not present at the ground level.

However, the electromagnetic pulse associated with the explosion may cause disruption of, and damage to, communication, electronic and electric power systems thereby upsetting the stability of modern society.

The object of this document is to establish a common reference for the conducted HEMP environment in order to select realistic stresses to apply to victim equipment for evaluating their performance.

Komise : IEC/SC 62A (Common aspects of electrical equipment used in medical practice)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 19.01.2021
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* Purpose

This document defines the life cycle requirements for development and maintenance of health software needed to support conformity to IEC 62443-4-1 – taking the specific needs for health software into account. The set of processes, activities, and tasks described in this document establishes a common framework for secure health software life cycle processes.

 

 

Fig. 1: health software life cycle processes (derived from IEC 62304, Ed 1.1)

 

The purpose is to increase the information security of health software by establishing certain activities and tasks in the health software life cycle processes and also by increasing the security of Software life cycle processes themselves.

It is important to maintain an appropriate balance of the key properties safety, effectiveness and security as discussed in IEC 81001-1.

This document excludes specification of accompanying documentation contents.

 

* Field of application

This document applies to the development and maintenance of health software by a manufacturer, but recognizes the critical importance of bi-lateral communication with organizations (e.g. HDOs) who have security responsibilities for the health software and the systems it is incorporated into, once the software has been developed and released. The IEC/ISO  81001-5 series of standards (for which this is part 1, is therefore being designed to include future parts addressing security that apply to the implementation, operations and use phases of the life cycle for organizations such as HDOs.

Medical device software is a subset of health software. Therefore, this document applies to:

Software as part of a medical device;

Software as part of hardware specifically intended for health use;

Software as a medical device (SaMD); and

Software-only product for other health use.

 

Note: In this document, the scope of software considered part of the life cycle activities for secure health software is larger and includes more software (drivers, platforms, operating systems) than for safety, because for security the focus will be on any use including foreseeable unauthorized access rather than just the intended use.

Fig. 2: health software field of application (source: IEC 62304 Ed 2)

 

Conformance

Health software conformance with this document is defined as implementing all of the processes, activities, and tasks identified in the normative parts of this document - with the exception of Annex F.

Conformance of transitional health software with Annex F of this document is defined as only implementing the processes, activities, and tasks identified in Annex F of this document.

Conformance is determined by inspection and establishing traceability of the processes, activities and tasks required.

The quality management system may be implemented according to ISO 13485 or other equivalent quality management system standards.

IEC 62304 specifies activities, based on the software safety classification. The required activities are indicated in the normative text of IEC 62304 as "[Class A, B, C]", "[Class B, C]" or "[Class C]", indicating that they are required selectively depending on the classification of the software to which they apply. The requirements in this document have a special focus on information security and therefore do not follow the concept of safety classes. For conformity to this document the selection of activities is independent of safety classes.

Implementing the processes, activities and tasks specified in this document is sufficient to implement the process requirements of IEC 62443-4-1. Manufacturers may implement the specifications for Annex E in order to achieve full conformity to IEC 62443-4-1.

This document requires establishing one or more processes that comprise of identified activities. The life cycle processes shall implement these activities. None of the requirements in this document requires to implement these activities as one single process or as separate processes. The activities specified in this document will typically be part of an existing life cycle process.

Oblast zaměření: Elektrická zařízení strojů
Komise : IEC/TC 44 (Safety of machinery - Electrotechnical aspects)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 19.01.2021
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Amendment

Komise : IEC/TC 3 (Documentation, graphical symbols and representations of technical information)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 19.01.2021
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This part of IEC 81346, published jointly by IEC and ISO, establishes general principles for the structuring of systems including structuring of the information about systems.

Based on these principles, rules and guidance are given for the formulation of unambiguous reference designations for objects in any system.

The reference designation identifies objects for the purpose of creation and retrieval of information about an object, and where realized about its corresponding component.

A reference designation labelled at a component is the key to find information about that object among different kinds of documents.

The principles are general and are applicable to all technical areas (for example mechanical engineering, electrical engineering, construction engineering, process engineering). They can be used for systems based on different technologies or for systems combining several technologies.

This document is also a horizontal publication intended for use by technical committees in preparation of publications related to reference designations in accordance with the principles laid down in IEC Guide 108.