ELCI stands for Equipment Leakage Interrupter. They are being installed in marinas across Washington State. Under the WAC 296-46b. Anytime work, upgrades to existing power supplies in marinas, docks or in new construction. Marinas must comply with the NEC code 555.3,which states. ” Ground-Fault Protection. The over current protective devices that supply the marina, boatyards, and commercial and noncommercial docking facilities shall have ground-fault protection not exceeding 30 MA.”
It is required to keep loose or stray current out of the water eliminating the shock hazard that occurs when a swimmer or a person falls in the water. The body can create electrical path I.E. between two boats or a ground source causing the person to become incapacitated and drowned.