AS NZS 2885.2:2020 Pipelines – Gas and liquid petroleum Part 2: Welding.
Note 1 to entry: The preferred method for determining the tensile properties of the line pipe conforming to API Spec 5L is given in AS/NZS 2885.1, Appendix A, preferred method for tensile testing of welded line pipe during manufacture.
1.4 Approval
Each document prepared for a pipeline in accordance with this Standard shall be APPROVED, as required by AS 2885.0.
NOTE Appendix A lists the documents that require APPROVAL in this Standard.
1.5 Qualification
Welding shall be performed by qualified personnel as described in Section 3 of this Standard and in accordance with documented qualified and APPROVED welding procedures.
1.6 Retrospectivity
It is not intended that this Standard be applied retrospectively to existing installations. Welding procedures and welder qualifications conforming to appropriate previous editions of this Standard may continue to be used for the maintenance of existing installations. New welding procedures and qualifications shall be in accordance with this Standard.
1.7 Carbon equivalent (CE)
For the purpose of this Standard, the CARBON EQUIVALENT (CE) calculated in accordance with the International Institute of Welding (11W) formula, as follows:
2.1 Production welding
2.1.1 General
Production welding shall be considered in the construction safety plan that is required in accordance with AS/NZS 2885.1.
NOTE The guidance in Weld Australia (formerly WTIA) publication TN 7 should also be considered.
2.1.2 Electrical safety during welding
Production welding shall be in accordance with AS 1674.2.
NOTE The guidance in Weld Australia (formerly WTIA) publication TN 7 should also be considered.
2.1.3 Welding environment
A thorough check shall be made in and around the welding site in accordance with AS 1674.2 to ensure welder safety and confirm that there are no substances that could constitute a risk of fire or explosion.
2.1.4 Equipment and compressed gases
Arc welding equipment shall be of a size and type suitable for the work and shall be maintained in a condition that ensures acceptable welds, continuity of operation, and safety of personnel. Arc-welding equipment shall be operated within parameter ranges given in the qualified welding procedure. Equipment that does not meet these requirements shall be repaired or replaced.
Equipment used with compressed gases, including regulators, shall be properly maintained to prevent hazards such as gas leaks.
NOTE Equipment used with compressed gases should be frequently checked for whether cylinders and regulators are visibly damaged or corroded, and whether they are within test date. Gas pipes, COMPONENTS, hoses and tubing can easily become damaged over time so these should also be inspected regularly.
2.1.5 Electric and magnetic fields (EMF)
Electric current flowing through any conductor causes localized electric and magnetic fields (EMF). Welding current creates EMF around welding cables and welding machines.AS NZS 2885.2 pdf download.