Engineering FAQ Guide
CCA Flat Wire: Corners, Bending and Insulation FAQ
What is CCA Flat Wire?
copper clad aluminum conductor in flat or rectangular form.
CCA flat wire combines a copper-clad aluminum conductor with a flat cross-section. Specify width, thickness, corner radius and resistance, then add the bend direction, bend radius and insulation requirements for the intended winding or formed part.
Primary Applications
- voice coil evaluation
- inverter magnetic components
- motor windings
- lightweight conductive parts
Critical RFQ Specifications
- width
- thickness
- corner radius
- copper ratio
- conductivity
- edge condition
Selection
Can CCA be sized from copper diameter alone?
No. Start with measured or agreed material resistivity and the required length and resistance at the same temperature. Then check available space, termination, thermal conditions and the applicable product specification. Equal diameter does not imply equal resistance.
Specifications
How should the copper fraction be stated?
Identify whether copper content is by mass, volume or cross-sectional area, and specify the measurement or calculation basis. These percentages cannot be exchanged without accounting for the material construction.
Which flat-wire fields are different from round wire?
Give width, thickness, separate tolerances, corner radius, edge condition and long-edge or short-edge bend direction. For insulated wire add finished dimensions and film requirements.
Procurement
What should a CCA Flat Wire inquiry include?
Include width, thickness, corner radius, copper ratio, conductivity, edge condition, drawing revision, intended use, requested sample or production quantity, packaging and destination. Confirm the required inspection records and schedule for that specification.
Testing
What is needed to evaluate a connection?
Identify the terminal, conductor dimensions, crimp or joining method, current profile, moisture, temperature and flexing. Check the exposed end or cut surface and test the complete connection. If the drawing requires copper, obtain the specification owner’s approval for a change.