How must the protection systems for cooking appliances be operated?

The operation of protection systems for cooking appliances must be simultaneous for all protected appliances to ensure comprehensive safety and effectiveness in extinguishing fire hazards. Utilizing the protection systems simultaneously allows for immediate response to a fire, reducing the risk of flames spreading and the potential for increased damage or injury. This approach is essential in environments where multiple cooking appliances may present similar fire risks at the same time.

When activated collectively, the protection systems can effectively address potential fire hazards across all appliances, ensuring that if one area catches fire, the other areas are also being safeguarded at the same moment. This reinforces an overall effective fire prevention strategy, which is especially critical in commercial kitchens where numerous appliances are often in use simultaneously.

The other options do not maintain the level of safety required. Operating systems independently, on a rotating schedule, or only when appliances are in use may lead to delayed responses or incomplete protection, which can increase the risk of fire outbreaks and jeopardize safety.