The IECEx System is based on the use of international standards. These standards are dedicated to the industry fields associated with the use of equipment installed and operated in potentially hazardous areas. In Australian and New Zealand standards committees have been highly active in the development of International Electrotechnical Commission (IEC) standards for more than a decade.
These pages presume that the reader has some experience in hazardous area installations. They are intended to provide readers with information regarding new developments, and the application of relevant standards.
With the publication of the latest Hazardous Area installation standard AS/NZS 60079.14 the concept of Equipment Protection Levels [EPLs] has been implemented. This is designed to give larger companies the facility to apply an extended risk assessment and use a different level of protection than that which would normally be required by the zone of classification. A training video is available to fully explain what EPLs are and how they are intended to be used. Hopefully this will avoid creating artificial classification to achieve this end. For further information contact E-x Solutions on +61 8 8270 2177.
With the publication of Amendment 2 to AS/NZS 3000 in December 2012, the AS/NZS 2381, AS 2381 and AS 1076 series have been withdrawn. These standards may still be in use for existing sites and projects, however for new designs AS/NZS 3000 now directs the user to AS/NZS 60079.14 for hazardous area equipment selection and installation, AS/NZS 60079.17 for inspection and maintenance, and to AS/NZS 60079.10.1 and AS/NZS 60079.10.2 for the classification of gas and dust hazardous areas respectively.