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Week 8: Overview and To Do List

Overview

At the end of the session, the students should be able to:

  • LO4.1. Explain the advantages and disadvantages of using high voltage in the shipping industry

  • LO4.2. Explain the competency requirements for personnel working on high voltage system per STCW 1978 as amended

  • LO4.3. Explain the functions of the various electrical components of a typical shipboard High Voltage Electrical Distribution System based on industry standards

  • LO4.4. Explain the hazards and mitigation associated with high voltage systems per industry standardsLO4.5. Explain how an Arc Detection Unit operates to avoid damage and protect personnel as per manufacturer’s manual

  • LO4.6 Explain the various steps in risk management for high voltage system as per IACS Guide to Risk Assessment for Ship Operations

To Do List

In order to successfully complete Week 8, please do the following:

LO4.1.

The students shall:

  • Participate and share input in the discussion.
  • Study industry standards (e.g., IEC 60092, IEEE 45) and relevant regulations for high voltage systems on ships, focusing on voltage levels, equipment requirements, and safety considerations.
  • Research the historical development of HV systems in shipping and the factors that have driven their adoption (e.g., increasing power demands, advancements in technology).
  • Review diagrams and schematics of typical HV systems on ships, identifying major components (e.g., transformers, switchgear, cables) and their layout.

 LO4.2.

The students shall:

  • Participate and share input in the discussion.
  • Study STCW Tables A-III/1 (Electro Technical Officer), A-III/2 (Electro Technical Rating), and A-III/6 (Officer in Charge of an Engineering Watch) to identify the specific knowledge, understanding, and proficiency requirements for personnel working on HV systems.
  • Review relevant sections of the industry standards (e.g., IEC 60092, IEEE 45) pertaining to HV safety on ships.
  • Research and understand the potential hazards associated with HV systems, such as electric shock, arc flash, and arc blast, as well as the preventive measures and safety procedures required to mitigate these risks.

LO4.3.

The students shall:

  • Participate and share input in the discussion.
  • Study industry standards (e.g., IEC 60092, IEEE 45) and relevant regulations for HV distribution systems on ships, focusing on the functions and specifications of different components (e.g., transformers, switchgear, cables, motors).
  • Review technical documentation and manuals for specific HV equipment used on ships (e.g., ABB, Siemens), understanding their operating principles, maintenance requirements, and safety features.
  • Research different HV system configurations used on various types of ships (e.g., container ships, cruise ships, LNG carriers), understanding the reasons for choosing specific components and arrangements to meet the vessel's power demands and operational needs.

LO4.4.

The students shall:

  • Participate and share input in the discussion.
  • Study industry standards (e.g., IEC 60092, IEEE 45) and relevant regulations for HV safety, focusing on the specific hazards associated with high voltage, such as:
  • Electric shock (direct contact, step potential, touch potential)
  • Arc flash
  • Arc blast
  • Electromagnetic fields (EMF)
  • Review accident reports and case studies related to HV incidents on ships, analyzing the causes and the lessons learned.

LO4.5.

The students shall:

  • Participate and share input in the discussion.
  • Obtain and study the manufacturer's manual for a specific Arc Detection Unit (ADU) commonly used on ships. Pay close attention to the operating principles, installation instructions, and maintenance procedures.
  • Research industry standards (e.g., IEC 60947-2, IEEE 1584) and relevant regulations related to arc flash protection and ADUs.
  • Review diagrams and schematics of electrical systems equipped with ADUs, understanding the placement of sensors and their connection to the control unit and the main circuit breaker.

LO4.6

The students shall:

  • Participate and share input in the discussion.
  • Study the IACS Guide to Risk Assessment for Ship Operations, focusing on the specific sections relevant to high voltage systems.
  • Review relevant maritime regulations and industry standards for HV safety and risk management.
  • Research different risk assessment methodologies (e.g., HAZID, HAZOP, FMEA) and their application to HV systems.
  • Develop and present risk mitigation plans for identified HV hazards, incorporating appropriate control measures (e.g., engineering controls, administrative controls, PPE).
  • Participate in group activities where students conduct risk assessments for various HV system tasks or scenarios, using appropriate methodologies and tools.
  • Analyze case studies of HV incidents on ships, identifying the risk factors that contributed to the incidents and evaluating the effectiveness of the risk management measures in place.