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Intermediate
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Boat Electrics
4 Lessons
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In the lessons of this brief overview module, we separate out the different components of a grounding system and investigate its core installation requirements. A proper grounding system is vital for the safety of AC and DC systems, corrosion prevention, and lightning protection.
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A short introduction to the various grounding circuits we will cover in this overview module.
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In this lesson, we take a look at the common ground point, which we call a grounding bus to distinguish it from what we have called the DC circuit ground. We also learn about the core differences between grounded and isolated ground DC systems.
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We learn about the purpose of all grounding systems plus installation requirements for grounding and bonding systems depending on this purpose.
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This course has been created in a joint effort by Nigel Calder and Dr. Jan Athenstädt. Nigel is responsible for the lecture notes and Jan will take the role of presenter and guide you through the lessons.
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There was one question about the combining of grounding wires. In the video, the information given was that all of them can be combined (including AC), but in most cases they are not, but in most cases AC is done separately (because of the 3 core cable). The answer marked as correct states that AC is ALWAYS done separately.
Hi Michal,
Thanks for your comment. I am not sure which part of the video you mean, but I assume it’s the sentence “In theory, its function could be combined with any of the other grounding conductors. But in practice it is always run as a separate conductor, in a common sheath with the hot and neutral current carrying conductors.”?
I think this sentence might not be as clear as it should have been. While this would work in theory, the standards require that the AC conductor is run in a common sheath. We will clarify this in the next revision of the video.
Best
Jan