- Reaction score
- 8,198
I think originally 3c swa was really only meant for 3 phase machines etc
If you just required line and neutral you used 2c swa
I think once swa started being used more domestically it all changed and home electricians and DIYer s would use 3c because they could connect line neutral and earth using cores and not having to use the armour as an earth
If you just required line and neutral you used 2c swa
I think once swa started being used more domestically it all changed and home electricians and DIYer s would use 3c because they could connect line neutral and earth using cores and not having to use the armour as an earth