🔍 Key Concepts

• Fixed fire-extinguishing systems used in control rooms or machinery spaces • Whether a ballast control room is normally occupied or only intermittently manned • The effect of water, dry chemical, steam, or gas on electrical/electronic equipment and on personnel safety

💭 Think About

• Think about which systems are designed to protect an enclosed space filled with electrical and electronic equipment without causing excessive damage to that equipment. • Consider whether people are expected to be inside the ballast control room during an emergency and how that affects the choice of extinguishing agent. • Ask yourself which options are typically used as a total-flooding system for enclosed machinery or control spaces, versus which are more suitable for local or open-area firefighting.

✅ Before You Answer

• Identify whether a ballast control room is more like a machinery/control space with sensitive equipment or an open deck area. • Check which agents (steam, water sprinklers, dry chemical, CO₂) are generally recommended for enclosed spaces with electrical equipment. • Verify which systems can safely and effectively flood an enclosed space to extinguish a fire, and how their use impacts personnel inside the space.