🔍 Key Concepts

• Watertight integrity requirements for bulkheads on inspected vessels • How cable penetrations are treated to maintain watertightness and fire boundaries • Typical shipyard/USCG-approved methods for passing cables through structural boundaries

💭 Think About

• Which option actually helps keep water from passing through the bulkhead if it becomes flooded on one side? Picture water pressing against that penetration. • Which of these practices is a standard marine installation method specifically designed for cable penetrations, and which sound more like general electrical practices? • Think about whether you want something that can be disconnected easily, or something that forms a permanent, sealed penetration around the cable.

✅ Before You Answer

• Verify which method is explicitly associated with maintaining watertight integrity where cables pass through bulkheads. • Check which options could actually create a leak path or violate structural/watertight requirements. • Confirm that the correct choice is a sealing/penetration fitting, not just an electrical grounding or mechanical connection.