Skip to content

Training course: HVDC Submarine power cable

Entering the field of submarine and HVDC transmission


Increasing demand for electricity in modern society is forcing transmission (system) operators to invest more in the development of new power lines (overhead lines or cables) with increased transmission capacity. The use of AC lines with greater capacity would pose significant problems, because transmission losses would be high.

The development of HVDC transmission systems has thus become increasingly important in recent years, as these systems can transmit large amounts of power over long distances with minor losses. Underground power cables are one of the technologies used in more and more applications.

An obvious use of HVDC cables is for submarine applications.  Submarine power cables are used to connect offshore installations, such as production platforms in the oil & gas sector or substation platforms in the offshore wind sector, to the mainland grids.

Although the cables account for just a small percentage of the total investments in the required equipment, failure would result in high costs relating to lost production and repair. Given the potential costs, investors want to mitigate risks. Despite the existence of various standards, guidelines and recommendations, there is no overall quality standard for the cabling process from start to finish. The design, manufacturing, testing and commissioning of a submarine cable must therefore be carefully implemented, including quality assurance and quality control in each phase.

This five day course will address and highlight the entire HVDC submarine cable life cycle, providing participants with a holistic view and sound understanding of HVDC submarine power cables and their accessories.  It will also include an overview of the risks during the various phases of an HVDC project.

Your benefits

■ An understanding of the parameters which differentiate submarine cables from land underground cables

■ An understanding of the reasons for and benefits of using HVDC submarine power cables

■ An understanding of the most important parameters during the design and commissioning of HVDC submarine cables

■ Knowledge of the methods to mitigate the possibility of failures

■ Insight into how to develop your set of requirements, methods and techniques.

For whom?

This course is designed for engineers and other staff from companies with an interest in improving the quality of HVDC submarine cables, including: cable manufacturers, cable installers, offshore energy project developers, TSOs and DSOs, energy utilities, energy project investors, insurance companies, investors, etc. We assume that participants have a general knowledge of power cable theory, manufacturing, installation, testing and operation. A Bachelor of Engineering degree is recommended.

Course topics

The following topics will be addressed:

  • Introduction
  • HVDC system technology
  • Cable system design parameters
  • Cable design parameters
  • Cable materials & accessories
  • Cable joints and terminations
  • Health, safety and environment
  • Marine survey
  • Cable routing
  • Cable installation on land and subsea
  • Cable ageing and cable failures
  • Quality assurance and quality control, inspections and testing
  • Testing, maintenance and failure investigation
  • Asset management of HVDC submarine power cables during the operation phase

Practical information

For the following items, please refer to the registration form:

  • Course dates
  • Venue details
  • Registration fee
  • Payment and cancellation conditions

The training and all course materials will be in English. To encourage active participation, the number of participants is limited to 25. Click here for more information and to register for the upcoming course.

In-company and customized training courses

On request, DNV can also develop customized and in-company training courses. Content, location and duration of the course can be adapted to your specific needs.

For more information please contact us

Energy Academy
tel: +31 (0)6 29602659 / +31 (0)6 15063593 / +31 (0)6 18410601

About DNV
DNV is the independent expert in risk management and assurance, operating in more than 100 countries. Through its broad experience and deep expertise DNV advances safety and sustainable performance, sets industry benchmarks, and inspires and invents solutions.

Whether assessing a new ship design, optimizing the performance of a wind farm, analyzing sensor data from a gas pipeline or certifying a food company’s supply chain, DNV enables its customers and their stakeholders to make critical decisions with confidence.

Driven by its purpose, to safeguard life, property, and the environment, DNV helps tackle the challenges and global transformations facing its customers and the world today and is a trusted voice for many of the world’s most successful and forward-thinking companies.

In the energy industry
DNV provides assurance to the entire energy value chain through its advisory, monitoring, verification, and certification services. As the world's leading resource of independent energy experts and technical advisors, the assurance provider helps industries and governments to navigate the many complex, interrelated transitions taking place globally and regionally, in the energy industry. DNV is committed to realizing the goals of the Paris Agreement, and supports customers to transition faster to a deeply decarbonized energy system.

Learn more at