SHIPBOARD HIGH VOLTAGE

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About Course

As vessels continue to increase in size, the power demand rises too, so more powerful engines and other equipment items must also be installed. The increased size and demand on power requires the use of higher voltages on board, enabling the efficient and effective transfer of energy throughout the vessel.

During this course, you will gain an understanding of onboard High Voltage (HV) applications, and how this differs from Low Voltage (LV). You will also explore the dangers associated with high voltage and safety practices when working with, or maintaining HV equipment or installations, as well as the terminology used.

The overall aim of this course is to provide you with an introduction to the knowledge and understanding of the safety requirements of high voltage power systems but does not replace the mandatory requirements as laid down in STCW Regulation III/1 and III/2.

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What Will You Learn?

  • Introduction to High Voltage (HV): Core concepts, where HV is used on ships, and why it requires special procedures.
  • Dangers of Electricity: Key risks including general hazards, electrical shocks and burns, fire and explosion, plus arc flash and arc blast—what they are and why they’re dangerous.
  • High Voltage Safety: Safe work practices on HV installations, the Permit to Work process, and Safe Isolation & Testing (prove dead, lock/tag, verify before touch).
  • Earthing Arrangements: How to “earth down,” establish safe working conditions, and follow sound earthing practices during HV tasks.
  • HV Equipment Testing: Purpose and typical scope of tests to confirm equipment integrity and safety before/after work.
  • High Voltage Components: Overview of major HV system elements and their roles in shipboard power systems.
  • Assessment & Terminology: A final assessment to validate understanding, plus a bonus glossary of HV terms for quick reference.

Course Content

High Voltage

  • Introduction to High Voltage
    00:00
  • High Voltage on Ships
    00:00
  • Dangers
    00:00
  • Electrical Shocks & Burns
    00:00
  • Fire and Explosion
    00:00
  • Arcing, Arc Flash & Arc Blast
    00:00
  • Safety while Working on HV Installations
    00:00
  • Permit to Work
    00:00
  • Safe Isolation & Testing
    00:00
  • Earthing Down & Safe Working Practice
    00:00
  • HV Equipment Testing
    00:00
  • HV Components
    00:00
  • Final Assessment: High Voltage

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