For facilities with over 1000 sprinklers, how many spare sprinklers must be available?

For facilities with over 1000 sprinklers, the requirement for spare sprinklers is based on industry standards that ensure adequate support for maintenance and emergency scenarios. The correct answer specifies that a minimum of 24 spare sprinklers must be available. This number is calculated to provide sufficient coverage for potential replacements due to various reasons, such as damage, malfunction, or routine maintenance.

Having 24 spare sprinklers ensures that if any of the installed sprinklers need to be replaced, there are enough spares on hand to quickly address the issue without significant disruption to the facility's fire protection system. This quantity is typically a common requirement in the industry for larger installations, reflecting the anticipated need for maintenance and the proactive measures necessary to uphold safety standards.