- Mar 16, 2016
And was also imported, expensively, through the blockade. The Confederates set up manufacturing sites to attempt to satisfy their requirements.A small but important point, the development of insulated iron wire to replace copper wire aided in the improvement of the telegraph systems as it was stronger, cheaper and insulated to protect against the effects of the weather. Confederates also appreciated the improved wire as they could use captured supplies of it to set off electrically detonated underwater torpedoes (mines) in the James River.
Source - 'Infernal Machines: The Story of Confederate Submarine and Mine Warfare' by Milton F. Perry