IEC 60050-426-am1

Amendment 1 - International Electrotechnical Vocabulary - Part 426: Equipment for explosive atmospheres

Amendement 1 - Vocabulaire Electrotechnique International - Partie 426: Matériel pour atmosphères explosives

Mednarodni elektrotehniški slovar - 426. del: Oprema za eksplozivne atmosfere - Dopolnilo A1

General Information

• Status: Not Published
• ICS: 01.040.29 - Electrical engineering (Vocabularies)
• ICS: 29.020 - Electrical engineering in general
• Technical Committee: ISO/IEC JTC 1/SC 1 - Vocabulary
• Current Stage: PPUB - Publication issued
• Start Date: 25-Feb-2015
• Ref Project: SIST IEC 60050-426:2008/A1:2017 - Amendment 1 - International Electrotechnical Vocabulary - Part 426: Equipment for explosive atmospheres

Overview

IEC 60050-426 Amendment 1 is an official update to the International Electrotechnical Vocabulary (IEV) focusing on equipment for explosive atmospheres. Published by the International Electrotechnical Commission (IEC) in 2017, this amendment refines and clarifies the terminology used worldwide to describe electrical devices and apparatus designed for use in hazardous environments where explosive gases, vapors, or dust may be present.

This document complements Part 426 of the IEV by incorporating approved changes that enhance the precision and consistency of technical language. The standardized terms help professionals, manufacturers, and regulatory bodies communicate effectively about safety-critical equipment operating under potentially explosive conditions.

Key Topics

• Terminology for Explosive Atmospheres: The amendment updates and replaces definitions related to electrical apparatus for explosive environments, ensuring alignment with current technological and safety practices.
• Rated Voltage for Trace Heaters: A specific example included in this amendment is the revised definition of the “rated voltage” for trace heaters. It clarifies that rated voltage refers to the voltage value related to the operating and performance characteristics of these heaters used to maintain temperature in pipes or vessels within explosive atmospheres.
• Consistency with International Standards: Updates are based on requests approved by IEC Technical Committee 1 (Terminology), reflecting global consensus and ensuring harmonized language across electrical engineering disciplines.
• Multilingual Support: The amendment is available in multiple languages, including English, French, and Slovenian, supporting international adoption and application.

Applications

This amendment serves as an essential resource for:

• Electrical Engineers and Designers: Assisting in the correct specification and description of equipment used in hazardous locations, such as oil refineries, chemical plants, and mining operations.
• Manufacturers of Explosive Atmosphere Equipment: Providing clarity on terminology that impacts product documentation, certification, and safety compliance.
• Safety and Compliance Professionals: Ensuring clear communication and understanding of equipment capabilities and operational limits to satisfy regulatory requirements like ATEX or IECEx.
• Standardization Bodies and Regulators: Facilitating uniform interpretation of technical terms related to explosive atmosphere equipment globally.
• Training and Education: Supporting academic institutions and professional training programs covering safety and performance aspects of electrical equipment used in hazardous locations.

Related Standards

• IEC 60079 Series: Standards covering equipment and protective systems for explosive atmospheres, including design, testing, and installation.
• IECEx Scheme: A global conformity assessment system for equipment used in explosive atmospheres.
• ATEX Directives: European Union regulations for equipment intended for use in potentially explosive atmospheres.
• IEC 60050 (International Electrotechnical Vocabulary): The overall framework for standardized electrotechnical terms across various subfields, including explosive atmosphere equipment.
• National and Regional Electrical Codes: Such as NEC (USA), CSA (Canada), and others that reference IEC terminology for hazardous location equipment.

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Keywords: IEC 60050-426 Amendment 1, International Electrotechnical Vocabulary, explosive atmospheres, electrical equipment, hazardous locations, rated voltage, trace heaters, IEC standards, explosive atmosphere terminology, electrical engineering standards.

Standards Content (Sample)

SLOVENSKI STANDARD
01-april-2017
Mednarodni elektrotehniški slovar - 426. del: Oprema za eksplozivne atmosfere -
Dopolnilo A1
Amendment 1 - International Electrotechnical Vocabulary - Part 426: Equipment for
explosive atmospheres
Amendement 1 - Vocabulaire Electrotechnique International - Partie 426: Matériel pour
atmosphères explosives
Ta slovenski standard je istoveten z: IEC 60050-426-am1
ICS:
01.040.29 Elektrotehnika (Slovarji) Electrical engineering
(Vocabularies)
29.260.20 (OHNWULþQLDSDUDWL]D Electrical apparatus for
HNVSOR]LYQDR]UDþMD explosive atmospheres
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

IEC 60050-426 ®
Edition 2.0 2015-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
HO RIZONTAL STANDARD
NO RME HORIZONTALE
AMENDMENT 1
AMENDEMENT 1
International Electrotechnical Vocabulary –

Part 426: Equipment for explosive atmospheres

Vocabulaire Electrotechnique International –

Partie 426: Matériel pour atmosphères explosives

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 01.040.29; 29.020 ISBN 978-2-8322-2282-9

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