Question by Keith Michal posted 08 Aug 2005
| Grounding & Bonding|
|Where can I find info on grounding and bonding requirements for extending a service drop to the end of a boat pier/dock?|
Answer by Joseph Golan posted 08 Aug 2005
Below is an excerpt from the BICSI TDMM (9th edition), chapter 12 listing it's recommendations on grounding for Marinas. The most important thing here is the last bullet. Requirements are only set by the Authority Having Jurisdiction (AHJ). Please check with your local inspector or the AHJ to get a definitive answer.
Chapter 12: Special Design Considerations Page 78 of 83
Bonding and Grounding
Electrical bonding and grounding at marinas:
• Requires close analysis.
• Is addressed on a case-by-case basis.
The closest approved ground is on the nearest land unless a dock has metallic support members
extending into the lake or sea bottom, and power service is grounded to these supports.
This may require:
• Locating station protectors on land where an approved ground is available.
• Discussions and review with the:
– Electrical contractor.
– Power utility company.
– Marina owner.
– Local electrical authority.
Joseph Golan, RCDD
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