I'm studying the subject Electrical Safety in Engineering and a special term really drew my attention. When I tried to google it, no any option was suggested but hull protection.

In the presentation slide, the definition of the term is explained in a such way.

Hull voltage: voltage that occurs when the insulation between accessible contacting parts usually not under voltage and a sufficiently distant point on the Earth's surface, is damaged or between such parts and other conductive parts with zero potential;

Could anyone explain the exact meaning of the term hull voltage?

  • \$\begingroup\$ google for 'cathodic protection'. Hull voltage is almost certainly to do with electrochemical corrosion where you have different metals in contact with seawater. As for what it means exactly, that's to do with exactly how it's defined in any circumstance. Different reference electrodes will give you different hull voltages. \$\endgroup\$ – Neil_UK Aug 24 '18 at 7:56
  • \$\begingroup\$ You may find that you should contact your lecturer / professor or the person who wrote that to be sure what they meant. \$\endgroup\$ – Solar Mike Aug 24 '18 at 8:19
  • 1
    \$\begingroup\$ That definition is, charitably, hard to read. \$\endgroup\$ – Pete Becker Aug 24 '18 at 11:39

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