1.0.1 This code is formulated with view to unify welding technical requirements of aluminum bus-bar so as to realize safety and usability, advanced technology, economy and rationality as well as guaranteed quality.
1.0.2 This code is applicable to the construction and acceptance for the aluminum bus-bar welding project of aluminum electrolysis series.
1.0.3 The welder engaged in aluminum bus-bar welding must mount guard upon welder certificate.
1.0.4 The construction and acceptance of aluminum bus-bar welding engineering shall not only comply with the requirements stipulated in this code but also those in the relevant current national standards.
2 Terms
2.0.1 Aluminum bus-bar
The electric conductor made from aluminum material with relatively large sectional area to connect several circuits (hereafter referred to as bus-bar).
2.0.2 Welding wire
The metal wire serves as both filler metal and conductor during welding.
2.0.3 Short circuit joint
Two planes stress welded by bolt which can be connected or disconnected quickly without damaging bus-bar.
2.0.4 Quality
The extent to which a group of inherent characteristics meet the requirements.
2.0.5 Hard aluminum bus-bar
The aluminum bus-bar section with sufficient rigidity to maintain shape and dimension.
2.0.6 Soft aluminum bus-bar
The aluminum bus-bar section with the requirements to absorb the expansion and contraction or other dislocation of connected hard aluminum bus-bar in set direction.
2.0.7 Hard welding plate
The transition piece made of aluminum plate that connects aluminum bus-bars sections.
2.0.8 Flexible plate
The transition piece made of pure aluminum sheet that is easy for deformation.
2.0.9 Flexible bundle
The bunchy component made from certain quantity of flexible plates spot-welded immediately after pressure formation.
2.0.10 Aluminum-steel transition welding plate
The transition component made of aluminum and steel plates compounded by explosion method with certain dimension and connection strength, which is used to solve the difficulty of direct welding of aluminum and steel in aluminum bus-bar welding engineering.
2.0.11 Aluminum-copper transition welding plate
The transition component made of aluminum and copper plates compounded by explosion method with certain dimension and connection strength, which is used to solve the difficulty of direct welding of aluminum and copper in aluminum bus-bar welding engineering.
2.0.12 Bus-bar joint
The generic term for all forms of welding between bus-bar sections.
2.0.13 Short circuit bus-bar
The bus-bar section that can separate or close a certain electrolytic pot from series composite circuit quickly.
2.0.14 Stress connection machine
The special product for short circuit joint.
2.0.15 Rectifying bus-bar
The DC bus-bar from rectifying substation to electrolytic plant.
2.0.16 End bus-bar
The bus-bar on both ends of electrolytic plant.
2.0.17 Passage bus-bar
The bus-bar temporarily connecting two electrolytic plants under the central passage of them.
2.0.18 Power inlet side bus-bar
The bus-bar connecting the first electrolytic pot of electrolytic series and the anode of rectifying bus-bar.
2.0.19 Power outlet side bus-bar
The bus-bar connecting the last electrolytic pot of electrolytic series and the cathode of rectifying bus-bar.
2.0.20 Pot end bus-bar
The bus-bar on the short side of electrolytic pot.
2.0.21 Pot side bus-bar
The bus-bar on the long side of electrolytic pot.
2.0.22 Pot bottom bus-bar
The bus-bar under the bottom of electrolytic pot.
2.0.23 Column bus-bar
In the adjacent two pots in electrolysis series, the component connecting the power outlet bus-bar of the former pot and the bus-bar over pot of the latter one.
2.0.24 Bus-bar over pot
The bus-bar section on the upper part of electrolytic pot and parallel to the long axis of electrolytic pot. It may move up and down with anode lifting mechanism (also known as anode bus-bar).
2.0.25 Bus-bar around pot
The generic terms of pot end bus-bar, pot side bus-bar, pot bottom bus-bar, column bus-bar and short circuit bus-bar around electrolytic pot.
