Řízení procesů

Oblast zaměření: Řízení procesů
Komise : IEC/SC 65B (Measurement and control devices)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 27.02.2020
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This part of IEC 60584 specifies manufacturing tolerances for extension and compensating cables (other than mineral insulated cables) provided directly to users of industrial processes. These tolerances are determined with respect to the electro-motive force (abbreviated as e.m.f. hereafter) - temperature relationship of Part 1 of the standard.

The method for identifi­cation of insulated thermocouple extension and compensating cables other than mineral insulated cables is described.

Furthermore, requirements for extension and compensating cables for use in industrial process control are specified.

Oblast zaměření: Řízení procesů
Komise : IEC/SC 65C (Industrial networks)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 17.03.2020
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This part of the IEC 61784‑3 series explains some common principles that can be used in the transmission of safety-relevant messages among participants within a distributed network which use fieldbus technology in accordance with the requirements of IEC 61508 (all parts)[1] for functional safety. These principles are based on the black channel approach. They can be used in various industrial applications such as process control, manufacturing automation and machinery.

This part and the IEC 61784-3-x parts specify several functional safety communication profiles based on the communication profiles and protocol layers of the fieldbus technologies in IEC 61784-1, IEC 61784-2 and IEC 61158 (all parts). These functional safety communication profiles use the black channel approach, as defined in IEC 61508. These functional safety communication profiles are intended for implementation in safety devices exclusively.

NOTE 1 Other safety-related communication systems meeting the requirements of IEC 61508 (all parts) can exist that are not included in IEC 61784-3 (all parts).

NOTE 2 It does not cover electrical safety and intrinsic safety aspects. Electrical safety relates to hazards such as electrical shock. Intrinsic safety relates to hazards associated with potentially explosive atmospheres.

All systems are exposed to unauthorized access at some point of their life cycle. Additional measures need to be considered in any safety-related application to protect fieldbus systems against unauthorized access. IEC 62443 (all parts) will address many of these issues; the relationship with IEC 62443 (all parts) is detailed in a dedicated subclause of this document.

NOTE 3 Implementation of a functional safety communication profile according to this document in a device is not sufficient to qualify it as a safety device, as defined in IEC 61508 (all parts).

NOTE 4 The resulting SIL claim of a system depends on the implementation of the selected functional safety communication profile within this system.

 

[1]   In the following pages of this document, “IEC 61508” will be used for “IEC 61508 (all parts)”.

Oblast zaměření: Řízení procesů
Komise : IEC/TC 65 (Industrial-process measurement and control)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 24.03.2020
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This clause of Part 1 is applicable, except as follows.

Scope

Equipment included in scope

Replacement:

Replace the text by the following paragraphs:

This part of IEC 61010 specifies the safety requirements for electric actuators and solenoids, as applied to valves, intended to be installed in an industrial process or discrete control environment.

This part of IEC 61010 specifies:

particular safety requirements for general purpose electrically operated valve actuators and solenoids,

related verification tests.

Equipment excluded from scope

Addition at the end of the list:

This standard excludes:

electric actuators solenoid

NOTE – these are covered by other IEC or ISO standards, such as IEC 60730, etc.

electric actuators and solenoids performing a safety function;

NOTE – these are covered by other IEC or ISO standards, such as IEC 61508, etc.

< >s.NOTE A positioner is defined as a "physical unit delivering an additional, often mechanical, feedback to a mechanical final controlling element that improves its velocity and precision" in IEC 60050-351:2013, 351-56-17.

Object

This clause of Part 1 is applicable, except as follows:

Aspects excluded from scope

Addition at the end of the list:

mechanical parts/aspects of valves.

Aspects included in other applicable documents

Where electric ACTUATORS and SOLENOIDS are required to comply with requirements of other IEC or ISO documents, aspects fully covered in these documents, can replace requirements as given in IEC 61010-1.

Where aspects covered in IEC 61010-1 are not fully covered in these IEC or ISO documents, tests of IEC 61010-1 shall be conducted as far to ensure that no hazard can occur in NORMAL or in SINGLE FAULT CONDITION.

Note – IEC 61010-1, Figure 15 of clause 14.1 give a general overview of dealing with components within the scope of other IEC or ISO standards. A similar approach can be used for equipment and sub-assemblies. Example - Clauses 8 and 9.1 to 9.5 can generally be considered sufficiently covered where IEC 60079 has been applied.

Oblast zaměření: Řízení procesů
Komise : IEC/SC 62A (Common aspects of electrical equipment used in medical practice)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 24.03.2020
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This standard describes the refurbishment process following risk management concepts for the refurbishment of medical electrical equipment (mee), medical electrical systems (mes) and of sub-assemblies - which are covered by the IEC 60601 series of standards - and the re-use of components as a possibility for an extended life cycle for mee/mes.

Note: The intention of refurbishment of me equipment, me system or sub-assemblies is the extension of the expected service life, defined from the manufacturer under defined conditions to ensure that such kind of refurbished me equipment, me system or sub-assemblies fulfils basic safety and essential performance from the IEC 60601 standard family.

Applying this process to used mee/mes and sub-assemblies as defined in this standard ensures compliance to basic safety and essential performance of the refurbished mee and mes or sub-assemblies.

 

This standard also covers refurbished sub-assemblies for re-use during the expected service life of me equipment and me systems, and re-use of used components.

 

This standard does not cover

 

Medical imaging equipment in the scope of IEC 63077[1] “Good refurbishment practices for medical imaging equipment”

Repair, maintenance and servicing of me equipment or me system covered by IEC 60601‑1 and IEC 62353

Unauthorized modification of me equipment or me system or parts of such equipment/systems

Environmental conscious design covered by IEC 60601-1-9 or ISO/IEC 62430

Environmental aspects covered by the ISO 14000 series of standards and waste treatment covered by IEC TC 111 standards

< > of limited multiple use devices or parts of such devices

< > of single use devices or parts of such devices

< > of components

[1] At FDIS stage