iTeh StandardsiTeh Standards
EURUSD
Your shopping cart is empty.
IEC

IEC 60079-0:2017/ISH2:2019

(Main)

Interpretation Sheet 2 - Explosive atmospheres - Part 0: Equipment - General requirements

Interpretation Sheet 2 - Explosive atmospheres - Part 0: Equipment - General requirements

Feuille d'interprétation 2 - Atmosphères explosives - Partie 0: Matériel - Exigences générales

General Information

Status
Published
Publication Date
26-Jun-2019
ICS
29.260.20 - Electrical apparatus for explosive atmospheres
Technical Committee
TC 31 - Equipment for explosive atmospheres
Drafting Committee
WG 22 - TC 31/WG 22
Current Stage
PPUB - Publication issued
Start Date
26-Jul-2019
Completion Date
27-Jun-2019
Ref Project

Relations

Revised
IEC 60079-0:2017 - Explosive atmospheres - Part 0: Equipment - General requirements
Effective Date
05-Sep-2023

Buy Standard

IEC 60079-0:2017/ISH2:2019 - Interpretation Sheet 2 - Explosive atmospheres - Part 0: Equipment - General requirements Released:6/27/2019IEC 60079-0:2017/ISH2:2019 - Interpretation Sheet 2 - Explosive atmospheres - Part 0: Equipment - General requirements Released:6/27/2019
PreviousNext
Standard
IEC 60079-0:2017/ISH2:2019 - Interpretation Sheet 2 - Explosive atmospheres - Part 0: Equipment - General requirements Released:6/27/2019
English and French language
4 pages
sale 15% off
Preview
sale 15% off
Preview

Standards Content (Sample)


 IEC 2019
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
IEC 60079-0
Edition 7.0  2017-12
EXPLOSIVE ATMOSPHERES –
Part 0: Equipment – General requirements

INTERPRETATION SHEET 2
This interpretation sheet has been prepared by IEC technical committee 31: Equipment for
explosive atmospheres.
The text of this interpretation sheet is based on the following documents:
DISH Report on voting
31/1469/DISH 31/1486/RVDISH
Full information on the voting for the approval of this interpretation sheet can be found in the
report on voting indicated in the above table.

___________
Question:
How shall marking be shown for equipment covered by both the electrical and non-electrical
standards (IEC 60079 and ISO 80079 series)?
Answer:
Equipment which includes both an electrical part and a non-electrical part shall have
combined marking. For example:
Ex db h IIA T4 Gb
Ex h tb IIIC T135 °C Db
ICS 29.260.20
IEC 60079-0:2017-12/ISH2:2019-06(en-fr)

– 2 – IEC 60079-0:2017/ISH2:2019
 IEC 2019
It will be clearer for the user that the combined risk of the electrical part and the non-electrical
part, covered by a single certificate, has been assessed for the complete equipment, stating
one EPL, one equipment Group and one temperature class for Gas and the same for Dust
(but showing a maximum surface temperature instead of a temperature class). It is also noted
that Ex Components are not marked with either a temperature class (Group II) or a maximum
surface temperature (Group III).
For equipment where separate certificates have been prepared, with one for the electrical
parts, and one for the non-electrical parts, it is appropriate to have separate electrical and
non-electrical marking strings, each with its own associated certificate number.
NOTE Additional guidance on the marking of assemblies is given in IEC TS 60079-46.

 IEC 2019
COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE
____
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.

This May Also Interest You

IEC
IEC TS 60079-44:2023(Main)
Explosive atmospheres - Part 44: Personal competence

IEC TS 60079-44:2023, which is a Technical Specification, is to provide guidance to establish recommended minimum criteria to determine roles, establish expectations of the necessary skills and evidence of competence to assess and manage the competence of personnel conducting work in or associated with hazardous areas. The purpose of this document is to provide guidance to establish:
• recommended minimum criteria to determine roles,
• expectations of the necessary skills, and
• evidence of competence
in order to assess and manage the competence of personnel who are conducting work in or associated with hazardous areas.
This document provides examples and recommendations of minimum levels of competence for typical roles associated with hazardous areas by addressing the knowledge, skills, or abilities that is expected of personnel. Additionally, examples of the evidence of competence expected for each role are provided.
The aim of tThis document is to assist in defining, assessing, and managing unique requirements for the competence of individuals working in or associated with installations where an explosive atmosphere could be present. Such a programme could be specific to a facility or used in conjunction with other regulatory requirements where they exist. The competencies for conducting work in a hazardous area are in addition to any competencies which may apply for the general type of work being undertaken (for example, professional credentials, electrical, non-electrical, operations, design).
This document applies to both electrical and non-electrical applications.
This document identifies the minimum level of knowledge and skills required to work in hazardous areas and the specific competence required for work associated with equipment for explosive atmospheres (commonly termed ‘Ex Equipment’) and the standards to which competence is to be assessed and attributed.
The purpose of this document is to provide guidance to establish:
• recommended minimum criteria to determine roles,
• expectations of the necessary skills, and
• evidence of competence
The principal application of this specification document is for personnel dealing with explosion-protected and associated equipment for use in explosive atmospheres, including the following work functions:
• Classification of areas;
• Producing, processing or servicing functions in a hazardous area and not directly involved in installing, maintaining or repairing explosion-protected equipment and systems;
• Designing, commissioning and maintaining explosion-protection strategies and equipment;
• Selecting, installing, testing and maintaining explosion-protected equipment and systems in hazardous areas;
• Inspecting hazardous area equipment, systems and installations;
• Overhauling, repairing and modifying explosion-protected equipment;
• Management of the Ex aspects of the facility.

  • Technical specification
    29 pages
    English language
    sale 15% off
IEC
IEC 60079-31:2022/COR1:2023(Corrigendum)
Corrigendum 1 - Explosive atmospheres - Part 31: Equipment dust ignition protection by enclosure "t"
  • Standard
    3 pages
    English and French language
    sale 15% off
IEC
IEC 60079-5:2015/AMD1:2022(Amendment)
Amendment 1 - Explosive atmospheres - Part 5: Equipment protection by powder filling "q"
  • Standard
    3 pages
    English language
    sale 15% off
  • Standard
    5 pages
    English and French language
    sale 15% off
IEC
IEC 60079-31:2008/ISH1:2022(Main)
Interpretation Sheet 1 - Explosive atmospheres - Part 31: Equipment dust ignition protection by enclosure "t"
  • Standard
    2 pages
    English language
    sale 15% off
IEC
IEC 60079-31:2013/ISH1:2022(Main)
Interpretation Sheet 1 - Explosive atmospheres - Part 31: Equipment dust ignition protection by enclosure "t"
  • Standard
    2 pages
    English language
    sale 15% off
IEC
IEC 60079-31:2022(Main)
Explosive atmospheres - Part 31: Equipment dust ignition protection by enclosure "t"

IEC 60079-31:2022 is applicable to equipment protected by enclosure and surface temperature limitation for use in explosive dust atmospheres. It specifies requirements for design, construction and testing of Ex Equipment and Ex Components. This document supplements and modifies the general requirements of IEC 60079-0. Where a requirement of this document conflicts with a requirement of IEC 60079-0, the requirement of this document takes precedence. This document does not apply to dusts of explosives, which do not require atmospheric oxygen for combustion, or to pyrophoric substances. This document does not apply to Ex Equipment or Ex Components intended for use in underground parts of mines as well as those parts of surface installations of such mines endangered by firedamp and/or combustible dust. This document does not take account of any risk due to an emission of flammable or toxic gas from the dust. This third edition cancels and replaces the second edition published in 2013. This edition constitutes a technical revision. Main significant changes from the previous edition are:
1) Document has been restructured from edition 2
2) Fault current rating of interrupting contacts in clauses 4.3.1 and 4.4.1, major change type C1
3) Cells and batteries in clauses 4.3.5.1 and 4.4.5.1, major change type C2
4) Overload or malfunction condition for the determination of temperature class for "tb" converter fed rotating electric machines, major change type C3
5) Additional requirements for entry devices with dust ignition protection by enclosure "t", major change type C4
Information about the background of ‘Major Technical Changes’
C1 – Ex Equipment having Level of Protection "ta" shall be rated for connection to a circuit with a prospective short circuit current of not greater than 1.5 kA. For Ex Equipment having Level of Protection "tb" or "tc" which is intended for mains connection and intended to interrupt fault current above 10kA, the equipment shall have a rated maximum short circuit withstand current, be tested according to 6.1.1.1, and be marked according to Clause 7.
C2 – For Ex Equipment having Level of Protection "ta" which contains a cell or battery, only a sealed cell or battery shall be used. For Ex Equipment having Level of Protection "tb" and "tc" where there are sparking contacts or hot surfaces, and which contains a cell or battery, only a sealed cell or battery shall be used.
C3 – Table 2 now includes malfunction conditions for temperature class determination of Level of Protection "tb" converter-fed electric machines.
C4 – Annex A added for entry devices with Type of Protection "t" including cable transit devices.
The contents of the corrigendum of October 2023 have been included in this copy.

  • Standard
    61 pages
    English language
    sale 15% off
  • Standard
    39 pages
    English and French language
    sale 15% off
IEC
IEC 62990-2:2021(Main)
Workplace atmospheres - Part 2: Gas detectors - Selection, installation, use and maintenance of detectors for toxic gases and vapours

IEC 62990-2:2021 gives guidance on the selection, installation, use and maintenance of electrical equipment used for the measurement of toxic gases and vapours in workplace atmospheres. The primary purpose of such equipment is to ensure safety of personnel and property by providing an indication of the concentration of a toxic gas or vapour and warning of its presence.
This document is applicable to equipment whose purpose is to provide an indication, alarm or other output function to give a warning of the presence of a toxic gas or vapour in the atmosphere and in some cases to initiate automatic or manual protective actions. It is applicable to equipment in which the sensor automatically generates an electrical signal when gas is present.
For the purposes of this document, equipment includes:
a) fixed equipment;
b) transportable equipment, and
c) portable equipment.
This document is intended to cover equipment defined within IEC 62990-1, but can provide useful information for equipment not covered by that document.

  • Standard
    62 pages
    English language
    sale 15% off
  • Standard
    129 pages
    English and French language
    sale 15% off
IEC
IEC 60079-26:2021(Main)
Explosive atmospheres - Part 26: Equipment with Separation Elements or combined Levels of Protection

IEC 60079-26:2021 specifies requirements for construction, testing and marking for Ex Equipment that contains parts of the equipment with different Equipment Protection Levels (EPLs) and a separation element. This equipment is mounted across a boundary where different EPLs are required, for example between different gas hazardous areas, dust hazardous areas or gas hazardous areas adjacent to dust hazardous areas.
Separation elements are considered for both electrical and non-electrical equipment. If mechanical energy can be transformed into a potential ignition source, additionally an ignition hazard assessment in accordance with ISO 80079-36 is performed and appropriate measures are undertaken.
This document also specifies requirements for the combination of two Types of Protection, each with EPL Gb, to achieve EPL Ga.
This document supplements and modifies the general requirements of IEC 60079-0. Where a requirement of this document conflicts with a requirement of IEC 60079-0, the requirement of this document takes precedence. This fourth edition cancels and replaces the third edition and constitutes a technical revision.
Please see the IEC 60079-26:2020 foreword for a description of the main changes with respect to the previous edition.

  • Standard
    47 pages
    English and French language
    sale 15% off
IEC
IEC 60079-1:2014/ISH1:2020(Main)
Interpretation sheet 1 - Explosive atmospheres - Part 1: Equipment protection by flameproof enclosures "d"
  • Standard
    2 pages
    English language
    sale 15% off
IEC
IEC 60079-29-1:2016/AMD1:2020(Amendment)
Amendment 1 - Explosive atmospheres - Part 29-1: Gas detectors - Performance requirements of detectors for flammable gases
  • Standard
    9 pages
    English and French language
    sale 15% off