What is required for systems protecting two or more hoods or plenums?

The requirement for systems protecting two or more hoods or plenums stipulates that the installation must ensure simultaneous operation of all systems. This is essential because in scenarios like kitchen hood protection, the presence of multiple hoods means that a fire could potentially occur in any of them simultaneously. If each hood operates independently, some fires could go unchecked, leading to the risk of injury or extensive property damage.

By ensuring that all systems operate simultaneously, it guarantees a coordinated response to any fire incident. When one system activates, it can effectively suppress potential fires across all protected areas at once, maintaining a safer environment. This approach also enhances the overall reliability of the extinguishing system, thereby adhering to safety standards and improving fire response effectiveness.

While testing for individual functionality, independent operation, and regular maintenance are all important aspects of a fire suppression system, the primary focus in this context is the need for all systems to work in unison to effectively safeguard the property.