Electrical Webinar Series

Six one hour electrical topics presented by Ed Lether. Ed is a retired electronic technician, designer, consultant, and instructor. His retirement activities include working with the Electric Shock Drowning Prevention Association to promote ESD awareness, particularly in the marina environments. Ed assists marinas with ESD investigation and mitigation. Additionally, Ed helps marina operators and boaters investigate and resolve ground-fault trip issues. Ed has also become involved in the endeavors to ensure that the National Electrical Code writers understand the marina and recreational boating environment when adding new requirements to the code.

Marinas, Shore Power, Ground Fault Protection, and the NEC

March   - Shore Power & the National Electrical Code
Recreational boaters are encountering a new challenge when putting in at new marinas or marinas that have recently upgraded their electrical distribution systems.  The alternating current shore power, taken for granted for so many years, has suddenly become a challenging, and often unpleasant, issue for many in the boating community.  Circuit breakers on new and upgraded docks are tripping at an annoyingly high rate.  Boaters often focus their displeasure—or worse—on the marina operator.  Interestingly, in almost all cases, the marina is not at fault.  So, what has changed.  This session will address those changes. Questions will be taken.
Order Recorded Webinar Here

April     -  Ground-Fault Protection in the Marina; What is it and why is it now required?
Just about everyone is familiar with the GFCI (Ground-Fault Circuit Interrupter).  Just look in the kitchen or the nearest bathroom.  GFCIs where first required by the NEC in 1971 and they are found in many places, including on marina docks.  What's relatively new is the ground-fault protection for equipment (GFPE or just GFP) required for shore power service, first required by the 2011 edition of the NEC.  What is GFP and how does it work?  How is it different from the GFCI?  Does it provide adequate protection for individuals and other creatures in the water nearby?  Is the shore power reliable where GFP is installed?  This session will address these and other questions.
Order Recorded Webinar Here

May     -  "Clamping" Shore Cords; A Valid & Important Exercise
More and more, marinas are becoming aware of safety concerns associated with the delivery of electrical power to their docks. As with almost everything else in the marine environments, inspection, monitoring, and maintenance of the electrical system is key to safe operation and performing the due diligence necessary to minimize liability. Many marinas are "clamping" shore cords with a leakage meter to check for electrical currents in the water around their customer's boats. We will discuss the validity of such a procedure and explain what it does and does not reveal. We will also have a brief look at possible next steps in the process.  
Order Recorded Webinar Here

June     -  Troubleshooting the Problem Boat (for technical/service staff)
Part 1 included a review of the challenges faced by marinas and boaters as ground-fault protection becomes a larger and larger part of the boating environment. It is bad enough when one has a problem, but far worse when no one can be found to locate and correct it. This technical session will review many of the known causes of GFP tripping, and how to diagnose, locate, and correct the condition. While all are welcome, this session will be directed toward those individuals that have some understanding of electrical circuits and how they work. Familiarity with AC electrical systems aboard boats and with the operation and use of basic electrical text tools will be helpful.

July      -  Electric Shock Drowning, The Marina Perspective

August  -  TBA