iTeh StandardsiTeh Standards
EURUSD
Your shopping cart is empty.
IEC

IEC TS 61241-2-2:1993

(Main)

Electrical apparatus for use in the presence of combustible dust - Part 2: Test methods - Section 2: Method for determining the electrical resistivity of dust in layers

Electrical apparatus for use in the presence of combustible dust - Part 2: Test methods - Section 2: Method for determining the electrical resistivity of dust in layers

Specifies a test method to determine, by application of a d.c. voltage, the electrical resistivity of a layer of dust. Is to be used in the design, construction, testing and application of electrical apparatus for use in the presence of combustible dust. This publication has the status of a technical report. The contents of the corrigendum of May 1994 have been included in this copy.

Matériels électriques destinés à être utilisés en présence de poussières combustibles - Partie 2: Méthodes d'essais - Section 2: Méthode de détermination de la résistivité électrique des couches de poussières

Indique une méthode d'essai pour la détermination de la résistivité électrique d'une couche de poussière lorsqu'on y applique une tension continue. S'applique à la conception, à la construction, aux essais et à l'utilisation du matériel électrique destiné à être utilisé en présence de poussière combustible. Cette publication a le statut d'un rapport technique. Le contenu du corrigendum de mai 1994 a été pris en considération dans cet exemplaire.

General Information

Status
Replaced
Publication Date
30-Apr-1994
ICS
29.260.20 - Electrical apparatus for explosive atmospheres
Technical Committee
TC 31 - Equipment for explosive atmospheres
Current Stage
DELPUB - Deleted Publication
Completion Date
18-Feb-2016
Ref Project

Relations

Replaced By
ISO/IEC 80079-20-2:2016 - Explosive atmospheres - Part 20-2: Material characteristics - Combustible dusts test methods
Effective Date
05-Sep-2023

Buy Standard

IEC TS 61241-2-2:1993/COR1:1994 - Corrigendum 1 - Electrical apparatus for use in the presence of combustible dust - Part 2: Test methods - Section 2: Method for determining the electrical resistivity of dust in layers Released:5/1/1994IEC TS 61241-2-2:1993/COR1:1994 - Corrigendum 1 - Electrical apparatus for use in the presence of combustible dust - Part 2: Test methods - Section 2: Method for determining the electrical resistivity of dust in layers Released:5/1/1994
PreviousNext
Technical specification
IEC TS 61241-2-2:1993/COR1:1994 - Corrigendum 1 - Electrical apparatus for use in the presence of combustible dust - Part 2: Test methods - Section 2: Method for determining the electrical resistivity of dust in layers Released:5/1/1994
English and French language
10 pages
sale 15% off
Preview
sale 15% off
Preview

Standards Content (Sample)


IEC Publication 1241-2-2
Publication 1241-2-2 de la CEI
(First edition - 1993)
(Première édition - 1993)
Matériels électriques destinés Electrical apparatus
for use in the presence
à être utilisés en présence
de poussières combustibles of combustible dust
Part 2: Test methods
Partie 2: Méthodes d’essais
Section 2: Method for determining
Section 2: Méthode de détermination
the electrical resistivity
de la résistivité électrique
of dust in layers
des
...

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 available as IEC 60079-31:2022 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
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