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Picture

New Shore Power: Preparing Your Boat to Avoid ELCI Problems

4/22/2019

5 Comments

 
PictureFidalgo Yacht Club, Anacortes, Washington. Gateway to the San Juan Islands. Preparing boat to avoid ELCI problems.
Fidalgo Yacht Club, Anacortes, Washington. Gateway to the San Juan Islands. Preparing boat to avoid ELCI problems. Leonard Landon, Lorena Landon
FYC members Lorena and Leonard Landon are co-managing editors of Waggoner Cruising Guide. They travel the Inside Passage in their Defever, Got d' Fever.
by Leonard Landon
Co-Managing Editor, Waggoner Cruising Guide

If you don’t already have Equipment Leakage Circuit Interrupter (ELCI) protection onboard your boat, you will want to read this article and learn how ELCI devices can make for safer boating and discover the various solutions available to meet the requirements of this American Boat and Yacht Council (ABYC) standard.

What are ELCI and RCD?

Anytime you have people and AC (alternating current) electricity near water, there is a risk of electrocution. That is why today’s standards for marina shore power receptacles and AC power on board your boat require ground-fault protection devices. 

ELCI is the ground fault protection device on your boat and a similar ground fault device or Residual-Current Device (RCD) is the shore-side protection on the marina’s shore power stanchion.

ELCI and RCD devices provide protection from electrical leakage by detecting small amperage differences between the “hot” black wire and “neutral” white wire in your boat’s AC service.  Amperage difference occurs when power leaks from the boat's AC wiring into surrounding water causing a dangerous situation that results in Electrical Shock Syndrome drownings when people enter water near leakage and become better electrical conductors than the surrounding water. Electrical Shock Drownings Syndrome is a larger threat in fresh water, but it can also occur in brackish or salt water.
Fidalgo Yacht Club, Anacortes, Washington. Gateway to the San Juan Islands. Preparing boat to avoid ELCI problems.

Why add an ELCI breaker to boats built before 2014?

Most boats built within the past five years have an ELCI breaker as part of the boat’s AC panel. Older boats should add ELCI protection. Marinas in Washington and Alaska with new or rebuilt docks are required by building code to add ground fault devices or RCD as part of their shore power service. At this time, only a few marinas in Washington and Alaska have protected shore power. British Columbia, Canada marinas are just now addressing the shore power ground fault issue with the first marina in BC (Saltspring Marina) adding ground fault protection to its new shore power this 2019 season.

In addition to making your boat ABYC compliant, adding ELCI protection to your boat will ensure that you and your boat won’t discover compatibility problems the first time you plug into the growing list of marinas with shore-side RCD ground fault protection. Some boats require a special sequence of switching to marina shore power that is RCD protected. By adding an ELCI to your boat, you can test and discover the needed sequence that won’t trip the ELCI and RCD breaker. For more on this topic, see our article titled What You Need To Know About ELCI-Protected Shore Power on WaggonerGuide.com.
PictureFidalgo Yacht Club, Anacortes, Washington. Gateway to the San Juan Islands. Preparing boat to avoid ELCI problems.
Fidalgo Yacht Club, Anacortes, Washington. Gateway to the San Juan Islands. Preparing boat to avoid ELCI problems.

How to add ELCI to your boat.

There are several options for adding ELCI protection to your boat:
ELCI Breaker in the AC Panel – Adding an ELCI breaker to the existing AC panel is the most elegant option if this location is within 10 feet of the boat’s shore power connection point. ELCI breakers are larger than standard over-amperage breakers and will require more panel space. The ELCI breaker should be installed and wired by a professional.
www.bluesea.com/products/
Cost:     30 amp $160;    50 amp $400 plus installation
Surface Mount Box/Panel – A utility box sized to the ELCI breaker can be surface mounted in a locker or lazarette near the boat’s shore power connection. The box and ELCI breaker location should be accessible, not only for the rare reset, but also for recommended regular testing with the breaker’s built-in “Test” button. It needs to be within 10 feet of the boat’s shore power connection.
www.bluesea.com/products/
Cost:     30 amp $300 - $500; 50 amp $500 - $580  plus installation
Power Plug Replacement – Smartplug has a combination plug and ELCI breaker unit that replaces existing shore power boat-side power receptacles. The combination unit provides a simple solution for upgrading shore power plug and adding ELCI. Status lights and reset controls are located in a separate box next to the plug receptacle.
smartplug.com/marine
Cost:     30 amp $500 - $650; 50 amp $550 - $750 plus installation
In-line Power Cord GFI/Surge Protector – Southwire Company makes a portable SurgeGuard GFI/Surge Protector adapter with marine connectors that plugs in-line with your 30 amp shore power cable and provides GFI protection. The unit is inexpensive and portable but may not satisfy all the requirements for ABYC compliance.
marinepower.southwire.com
Cost:     30 amp $160;    50 amp $430

With the help of the professionals at K&R Marine Services, we chose the option to add an ELCI to a locker in the Pilothouse.

The AC Panel on our 2003 DeFever didn’t have any room to add a panel mount ELCI breaker. However, the locker immediately adjacent to the electrical panel had room for a surface mount breaker. Our 50 amp service required a larger 50 amp ELCI Breaker.

We called upon the professional ABYC Certified Technicians at K&R Marine Services in Anacortes to configure and install a Blue Seas ELCI Breaker. The project required most of an afternoon to install and test the new equipment. With the project complete, our shore power system is now ABYC compliant, and we are prepared for upgraded ground fault protected power located at a number of marinas.
PictureFidalgo Yacht Club, Anacortes, Washington. Gateway to the San Juan Islands. Preparing boat to avoid ELCI problems.
PictureFidalgo Yacht Club, Anacortes, Washington. Gateway to the San Juan Islands. Preparing boat to avoid ELCI problems.
Picture
PictureFidalgo Yacht Club, Anacortes, Washington. Gateway to the San Juan Islands. Preparing boat to avoid ELCI problems.
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5 Comments
Joanne Wilshin link
4/23/2019 10:21:29 am

This is a great post from Leonard. We were in Petersburg, Alaska in 2016 and couldn't moor at the main dock because our electrical system kept shorting the dock. We had to move to the SW marina. As soon as we got home, we fixed the problem.

Reply
Len Hubbard
6/25/2019 07:43:01 am

What was the fix?

Reply
Callum Palmer link
6/29/2019 10:35:37 am

With my boat, I do think it's having this kind of problem or something with a ground. Now I don't know exactly for sure, but I would like to get it fixed sooner than later. Do you think it would be best to have someone take a look at it for me?

Reply
chuck brock
5/5/2021 09:58:03 am

Most issues we've seen is generator installs where the transfer switch only switches the load between shore/genset. You need to update the switch to also switch out the Neutral to the generator.

2) Failing battery chargers
3) Failed/failing Galvanic isolators

Reply
New Boat Dock link
7/19/2022 04:40:32 am

This article is complete. Thank you very much for doing this.

Reply



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    Fidalgo Yacht Club is best known as a cruising club, whose members share a passion for boats, the Pacific Northwest inland waterways, and a sense of comradery.  Safe boat handling is a priority.  Summer will find us on the water from Anacortes to SE Alaska.  Wintertime we gather together in our clubhouse to gather knowledge from dinner speakers and educational “bar chats”.   We cruise and learn together and welcome new members whether a seasoned mariner or first-time boater.

    A quarter of our membership has made the trek from Anacortes to SE Alaska, often multiple times. Half of us have cruised north of Cape Caution, and almost all of us have cruised the Broughtons. All these cruises were either solo or in small groups.
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