How can smoke alarms be powered?

Smoke alarms can be powered in several ways to ensure their effectiveness and reliability in detecting smoke and alerting occupants to potential fires. The correct answer indicates that smoke alarms can be battery-powered, hard wired, or utilize both power sources.

Battery-powered smoke alarms offer the advantage of easy installation, as they do not require electrical wiring and can be placed in various locations as needed. These types of alarms can function during a power outage, making them a vital safety feature.

Hard wired smoke alarms connect directly to the home’s electrical system, offering a continuous power source and often come with a battery backup to ensure functionality even during power failures. This type can also be interconnected with other alarms within the home, so when one alarm sounds, all alarms will activate, enhancing safety.

By allowing for both battery-powered and hard wired options, smoke alarm systems can provide flexibility for homeowners, ensuring that they are adequately protected regardless of the power situation. This versatility is crucial in maximizing safety in residential and commercial buildings.