Which of the following are electrical hazards?

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Electrical hazards arise whenever a condition can expose live conductors, allow excessive current to flow, or compromise insulation. Exposed wires are a direct contact and arc fault risk because you can touch live conductors or have arcing between them. Overloaded circuits push more current than the wiring, breakers, or fuses are designed to handle, which causes overheating, insulation damage, and can ignite fires. Poor insulation increases leakage currents and the chance of shock or short circuits, since the protective barrier between conductors and people or equipment is weakened. Together, these scenarios cover the main ways electricity can harm people or gear on a ship or in any electrical system, so recognizing all of them as hazards is essential. In practice, keep conductors enclosed, avoid overloading circuits, ensure insulation is intact and properly rated, and follow proper safety procedures and inspections.