UL 60079-18 (ND)-2012 National Differences For UL 60079-18 Explosive atmospheres - Part 18: Equipment protection by encapsulation ’m’ (Third Edition; Reprint with Revisions Through and Including October 05@ 2012)
Preface This document provides a single listing of the technical National Differences included in the UL adoption of the corresponding IEC standard. In its IEC-based standards@ UL uses the notations indicated below to identify national difference type@ and these types are additionally noted in this document. The standard may not use all types of these deviations. D1 - These are deviations which are based on basic safety principles and requirements@ elimination of which would compromise safety for U.S. consumers and users of products. D2 - These are deviations based on safety practices. These are deviations for IEC requirements that may be acceptable@ but adopting the IEC requirements would require considerable retesting or redesign on the manufacturer's part. DC - These are deviations based on the component standards and will not be deleted until a particular component standard is harmonized with the IEC component standard. DE - These are deviations based on editorial comments or corrections. DR - These are deviations based on the national regulatory requirements. Each national difference contains a description of what the national difference entails. Typically one of the following words is used to explain how the text of the national difference is to be applied to the base IEC text: Addition / Add - An addition entails adding a complete new numbered clause@ subclause@ table@ figure@ or annex. Addition is not meant to include adding select words to the base IEC text. Deletion / Delete - A deletion entails complete deletion of an entire numbered clause@ subclause@ table@ figure@ or annex without any replacement text. Modification / Modify - A modification is an altering of the existing base IEC text such as the addition@ replacement or deletion of certain words or the replacement of an entire clause@ subclause@ table@ figure@ or annex of the base IEC text.
UL 60079-18 (ND)-2012 history
1970UL 60079-18-2019 UL Standard for Safety Electrical Apparatus for Explosive Gas Atmospheres – Part 18: Encapsulation "m"
2018UL 60079-18 BULLETIN-2018 UL Standard for Safety Explosive atmospheres – Part 18: Equipment protection by encapsulation “m” (COMMENTS DUE: JANUARY 7@ 2019)
2016UL 60079-18 BULLETIN-2016 "UL Standard for Safety Electrical Apparatus for Explosive Gas Atmospheres – Part 18: Construction@ Test and Marking of Type of Protection Encapsulation ""m"" Electrical Apparatus (COMMENTS DUE: JANUARY 16@ 2017)"
2015UL 60079-18 BULLETIN-2015 "UL Standard for Safety Electrical Apparatus for Explosive Gas Atmospheres – Part 18: Construction@ Test and Marking of Type of Protection Encapsulation ""m"" Electrical Apparatus (COMMENTS DUE: NOVEMBER 23@ 2015)"
2015UL 60079-18 (ND)-2015 National Differences For UL 60079-18 Explosive atmospheres - Part 18: Equipment protection by encapsulation ’m’ (Fourth Edition)
2015UL 60079-18-2015 UL Standard for Safety Explosive atmospheres - Part 18: Equipment protection by encapsulation “m” (Fourth Edition)
2012UL 60079-18 (ND)-2012 National Differences For UL 60079-18 Explosive atmospheres - Part 18: Equipment protection by encapsulation ’m’ (Third Edition; Reprint with Revisions Through and Including October 05@ 2012)
2012UL 60079-18-2012 Electrical apparatus for explosive gas atmospheres - Part 18: Construction, test and marking of type of protection encapsulation "m" electrical apparatus
2007UL 60079-18 BULLETIN-2007 "UL Standard for Safety Electrical Apparatus for Explosive Gas Atmospheres – Part 18: Construction@ Test and Marking of Type of Protection Encapsulation ""m"" Electrical Apparatus (COMMENTS DUE: July 05@ 2007)"
2005UL 60079-18 (ND)-2005 National Differences For UL 60079-18 Electrical Apparatus for Explosive Gas Atmospheres - Part 18: Construction@ Test and Marking of Type of Protection Encapsulation ’m’ Electrical Apparatus (Second Edition)
2005UL 60079-18-2005 "UL Standard for Safety Electrical Apparatus for Explosive Gas Atmospheres – Part 18: Construction@ Test and Marking of Type of Protection Encapsulation ""m"" Electrical Apparatus (Second Edition)"
2003UL 60079-18 BULLETINS-2003 "UL Standard for Safety Electrical Apparatus for Explosive Gas Atmospheres – Part 18: Construction@ Test and Marking of Type of Protection Encapsulation ""m"" Electrical Apparatus (04/18/2003 (6p); 01/23/2003 (6p))"
2002UL 60079-18-2002 "UL Standard for Safety Electrical Apparatus for Explosive Gas Atmospheres – Part 18: Encapsulation ""m"" (First Edition)"