ABYC Marine Electrical Practice Exam

Shore power cords must be supported with _______ between the inlet and the first breaker.

1. Zip ties

2. Metal clamps

3. Plastic clips

4. Electrical tape

The correct answer is: Metal clamps

Shore power cords are critical for safely connecting a vessel to shore-side power. The requirement for using metal clamps between the inlet and the first breaker is based on the need for a secure and durable fastening method that can withstand the rigors of marine environments. Metal clamps offer the necessary strength and resilience to support the cord, preventing strain on the inlet, which can lead to damage or electrical failures if not properly secured. In marine applications, it is essential to ensure that any fastening method can endure exposure to moisture, corrosion, and movement. Metal clamps fulfill these requirements more effectively than other materials, providing a reliable support structure that maintains the integrity of the power connection. This support is crucial for ensuring safety and proper operation of the electrical systems aboard the vessel. This practice is in accordance with the standards set by the American Boat and Yacht Council (ABYC), emphasizing the importance of reliable installation methods for marine electrical systems. Using more flexible or less durable materials, such as tape or plastic clips, could compromise the cord's security over time, leading to potential hazards. Therefore, the choice of metal clamps reflects best practices for ensuring the safety and reliability of shore power connections.