Telegraph lines - low voltage voice and data transmission. Now obsolete, almost universally been replaced by optic fibre. Typical poles:
Power lines - High voltage electrical energy transmission. Typical poles:
- Forums
- Humour
- Green Energy
Green Energy, page-4
Featured News
Featured News
The Watchlist
CCO
THE CALMER CO INTERNATIONAL LIMITED
Anthony Noble, MD & CEO
Anthony Noble
MD & CEO
Previous Video
Next Video
SPONSORED BY The Market Online