AU/NZ changes shown (mostly) in-line for AS/NZS 60079.14:2022!

In late June 2022 new editions of AS/NZS 60079.14 and AS/NZS 60079.10.1 were published, along with a new supplement to AS/NZS 60079.10.1.

AS/NZS 60079.14:2022

Australian/New Zealand variations shown within the document

This "new" revision of the HA design and installation standard is a readoption of IEC 60079-14:2013. The revision began as a minor amendment, but the opportunity to convert the document to a "National Variation Box" format was taken.

This means the Australian/New Zealand changes to the IEC text are no longer hidden at the back of the document in Appendix ZZ. Instead, the changes are shown in each clause near the text they modify. The change goes a long way to addressing the usability issues with the 2017 version raised by many in industry and on the EL-014 committee, us included.

I look forward to fielding fewer "does equipment not need IECEx certification anymore?" phone calls!

Other changes

This version includes a few other changes:

  1. New Level of Protection markings are explained (5.4.7):
    e → eb
    nA → ec
    d → db
    nC → dc
    nL → ic

  2. Pollution degrees are explained (5.9.1).

  3. Clarification that cable jointing is permitted (9.6.7).

  4. Clarification that junction boxes containing multiple IS circuits do not need to be certified (16.5.3).

AS/NZS 60079.10.1

AS/NZS IEC 60079.10.1:2022

The new verion of the gas classification standard adopts IEC 60079-10-1:2020 without any national variations.

AS/NZS IEC 60079.10.1:2022 Sup 1:2022

Specific guidance for Australia and New Zealand, as well as the Annex ZA examples, are now located in a supplementary document.

The intent of this move is to focus more attention on the normative requirements of the standard and discourage the (mis-)application of example classifications.