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Jan Attenstedt and Nigel Calder clarify the requirements for installing ELCI (Equipment Leakage Circuit Interrupter), RCD (Residual Current Device), and GFCI (Ground Fault Circuit Interrupter) safety devices on marine AC shore power systems.0:19 An ELCI, known as an RCD in Europe, mounts immediately after the shore power inlet to trip the main breaker if it detects leakage current.0:40 While the ABYC classifies the ELCI as a boat protection device rather than a people protection device, it serves as a critical safety component.2:02 US-built boats additionally require GFCIs in wet areas like galleys and heads due to their lower trip thresholds.0:54 When installing an ELCI on the incoming feed, installers do not need to place a GFCI on the first receptacle of every circuit.1:27 Instead, they should daisy-chain receptacles off a single GFCI within the specific wet compartment.1:39 European standards do not mandate GFCIs because the RCD provides sufficient whole-boat protection.2:16

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