Single-Line Electrical

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Single-line diagram

Single Line Electrical Drawing

The single line electrical drawing is a diagramatic overview of a vessels electrical systems. Lines are used to represent wire connections between distribution, transformation, and switchgear. Voltages and amperage capacities of busses are noted. Breaker and transformer sizes are given. Load values are given for all equipment and load groupings onboard the vessel. Methodology of generation, storage and distribution are demonstrated.


  • Junction boxes
  • Bus bars
  • Wires
  • Loads
  • Automatic transfer breaker
  • Battery bank
  • AC-DC Rectifier
  • DC-AC Invertor
  • Grounding link
  • Transformers
  • Breakers
  • Loadbreak / switches
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