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IEEE/IEC 60079-30-2-2025

IEC/IEEE International Standard for Explosive atmospheres - Part 30-2: Electrical resistance trace heating - Guidance on application for design, installation and maintenance
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IEEE/IEC 60079-30-2-2025

IEC/IEEE International Standard for Explosive atmospheres - Part 30-2: Electrical resistance trace heating - Guidance on application for design, installation and maintenance

PUBLISH DATE 2025
PAGES 78
IEEE/IEC 60079-30-2-2025

Revision Standard - Active.

This part of IEC 60079 provides guidance for the application of electrical resistance trace heating systems in areas where explosive atmospheres can be present, with the exclusion of those classified as requiring Equipment Protection Level (EPL) Ga or Da (traditional relationship to Zone 0 and Zone 20 respectively).

This document also provides guidance for explosive atmospheres incorporating the Division method of area classification that can be applied by some users of this document. NOTE: Information on the Division method is given in NFPA 70® [1] and CSA C22.1 [2].

This document provides recommendations for the design, installation, maintenance and repair of trace heating systems including associated control and monitoring equipment.

It does not cover devices that operate by induction heating, skin effect heating or direct pipeline heating, nor those intended for stress relieving.

SDO IEEE: Institute of Electrical and Electronics Engineers
Document Number 60079-30-2
Publication Date Dec. 19, 2025
Language en - English
Page Count 78
Revision Level
Supercedes
Committee Petroleum and Chemical Industry
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