AS/NZS 5601.1: 2022 was published 30 September 2022. In this version some of the major changes include:
– Section 2 has been separated into “Essential safety requirements” and “Performance based design requirements”.
– Brazing prohibited within 1 m of a joint with non-metallic components.
r multilayer pipe above-ground external to buildings.
– Provision of emergency isolation for multilayer pipe
– Increased clearance requirement between domestic cooking appliances and rangehoods to align with IEC 60335-2-31, Households and similar electrical appliances – Safety, Part 2-31: Particular requirements for rangehoods and other cooking fume extractors.
– New pipe sizing graphs and tables based upon the Churchill friction factor equation.
– Effect of altitude on gas supply pressure for high rise building installations.
– Revised requirements for the location of flue terminals under a covered area, in a recess, or on a balcony.
– Changes associated with commercial catering equipment:
* Prohibition on the use of semi-rigid connectors in the installation of commercial catering equipment.
* New requirement of the protection of combustible surfaces adjacent to commercial catering equipment.
* New requirements for freestanding commercial catering equipment with under-equipment connection.
* New requirements for the connection of freestanding commercial catering equipment using a hose assembly.
Please consult AS/NZS 5601 for full details of all changes and the local regulatory authority for implementation timeframes.