Busbar Ribbon Specification Checklist
Define the conductor construction, finished width and thickness, coating and module current path. Add the forming requirements, resistance limit, joining process and spool format. Agree mechanical and joint tests for the actual ribbon construction.
On this page
Define the section and surface
- State the base metal or layer construction, copper fraction basis where applicable, width, thickness and dimensional tolerances. Distinguish the metal section from the finished coated section.
- Specify coating composition and build, edge condition, straightness and packaging. Check those requirements against the contact area, stringer or soldering equipment and module layout.
Agree mechanical acceptance
- Select tensile strength, yield or proof-stress method and elongation requirements from the actual forming and cell-stress needs. State specimen dimensions, gauge length, test speed and material condition.
- Use the mechanical acceptance limits required by the drawing and process. Use representative trial samples to evaluate ribbon handling, springback, cell damage and joining before agreeing production acceptance.
Compare electrical and joining behavior
- Define the allowed resistance for the length and section, measurement temperature and joint geometry. Compare copper and CCA at a stated basis; equal dimensions do not establish equal resistance.
- Record cell metallization, coating, thermal profile, pressure and cooling. Agree peel-test direction, speed and failure criteria, then check the module using the chosen bill of materials.
Separate reference standards from supply evidence
- ASTM B566 concerns bare round CCA wire; it does not qualify flat busbar ribbon. IEC 62641 concerns aluminum and aluminum-alloy wires for concentric-lay stranded overhead conductors; it is not a CCA ribbon specification.
- Agree a ribbon-specific drawing, purchase specification, sampling and inspection documents. Specify the COA/COC, cross-section and mechanical records required for the order.
Busbar ribbon drawing and test inputs
Add your project inputs, then download the worksheet or send it with an inquiry. The fields start blank; entries are your requirements and observations.
Scroll horizontally to read all columns. Keep the conditions and units with each value.
| Item | Information / units | Your input |
|---|---|---|
| Construction | Base/core/cladding metals, material grade and condition; layer fraction basis or thickness by face | |
| Section | Bare and finished width/thickness, separate tolerances, corners and edge/burr requirements | |
| Surface | Coating alloy, thickness, coverage and measurement method | |
| Mechanical test | Tensile/proof-stress/elongation method and version, specimen, gauge length, speed and limits | |
| Forming | Bend direction, radius, springback criterion and cell-stress observations | |
| Resistance | Length, metal section, temperature, measurement method and maximum accepted value | |
| Joining | Cell metallization, equipment, flux, thermal profile, dwell, pressure and cooling | |
| Joint acceptance | Peel angle/direction, speed, fixture, failure location, limits and lot comparison | |
| Module trial | Reference and changed bill of materials, test conditions, results and approval owner | |
| Supply format | Spool/core/flange geometry, winding, quantity, protection and batch records |
Drafts are stored only in this browser when you choose Save. Clear inputs also removes the saved draft. Worksheet version: RT-RFQ-WORKSHEET-1.
Question and answer
What belongs in a busbar ribbon purchase specification?
Define the material construction, size combination, coating, material condition and dimensional, electrical and mechanical acceptance limits. The drawing and inspection plan connect these requirements to the intended module process.