Scope of Bus Welding Technical Regulations 1: This standard specifies the technical requirements for bus welding work involved in the production, installation, and maintenance of equipment in the power industry. This standard applies to tungsten inert gas welding (TIG) and melting inert gas welding (MIG) of busbars made of pure aluminum and aluminum alloys, pure copper and copper alloys. The welding work of aluminum alloy power fittings can be carried out according to this standard. The following normative references are essential for the application of this document. For dated references, only the dated version applies to this document. For undated references, the latest version (including all modification orders) applies to this document. GB/T 985.3 Grooves for Gas Shielded Welding of Aluminum and Aluminum Alloys (GB/T 985.3-2008, ISO 9692-3:2000, MOD) GB/T 3048.2 Test Methods for Electrical Properties of Electric Wires and Cables - Part 2: Electrical Resistivity Test of Metallic Materials (GB/T 3048.2-2007, IEC60468: 1974, MOD) GB/T 3048.4 Electrical Performance Test Methods for Electric Wires and Cables - Part 4: Conductor DC Resistance Test GB/T 3190 Wrought Aluminum and Aluminum Alloy Chemical Composition GB/T 3323 Metal Fusion Welding Welding Joint Radiography GB/T 3880.1- GB/T 3880.3 General Industrial Aluminum and Aluminum Alloy Plate and Strip GB/T 4842 Argon GB/T 5231 Wrought Copper and Copper Alloy Grades and Chemical Composition GBT 9460 Copper and Copper Alloy Welding Wire GB/T 10858 Aluminum and Aluminum Alloy Welding Wire GB/T 3692 Corner Weld Fracture Test Method D LT 675 Qualification Assessment Rules for Non destructive Testing Personnel in the Power Industry DL/T 679 Technical Assessment Regulations for Welders
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