Aluminium Cable vs Copper Cable
Complete Comparison — Cost, Performance & When to Use Each
The choice between aluminium and copper cables is one of the most important decisions in any electrical project. Both have their place — and using the wrong one can mean either overspending unnecessarily or compromising on performance. Here is a complete, practical guide from JSR Group.
Aluminium vs Copper Cable — Full Comparison
| Property | Aluminium Cable | Copper Cable |
|---|---|---|
| Conductivity | 61% of copper | 100% (reference) |
| Weight | 3× lighter than copper | Heavier |
| Cost | 40–60% cheaper | Higher |
| Flexibility | Less flexible | More flexible |
| Min. Practical Size | 16 sqmm | 1 sqmm |
| Typical Use | Underground, main feeders | Wiring, panels, control |
✅ Choose Aluminium For:
- Underground distribution cables
- Building main feeder cables (35 sqmm+)
- Overhead power lines
- Long cable runs (50m+)
- Budget-critical projects
✅ Choose Copper For:
- House and building wiring (up to 16 sqmm)
- Control cables and panel wiring
- Flexible cables and connections
- Critical circuits (hospitals, data centres)
- Short runs where space is limited
Need Cable Sizing Advice for Your Project?
+91-9311945078 | JSR Group, Gurgaon — Supplying Delhi NCR since 2010
