Which standard covers the installation of wet chemical extinguishing systems?

The installation of wet chemical extinguishing systems is specifically addressed in NFPA 17A, which covers standards and guidelines for these systems used to suppress fires, particularly those involving cooking equipment. Wet chemical systems are designed to combat fires caused by cooking oils and fats, which require special methods for extinguishment. NFPA 17A provides detailed requirements regarding system design, installation, maintenance, and testing to ensure that the systems are effective in an emergency situation.

Understanding the focus of NFPA 12, NFPA 17, and NFPA 14 helps clarify why they are not applicable in this context. NFPA 12 deals with carbon dioxide extinguishing systems, NFPA 17 covers dry chemical systems, and NFPA 14 focuses on the installation of standpipe and hose systems. Each of these standards pertains to different types of fire suppression systems, thus highlighting that NFPA 17A is the relevant standard for wet chemical extinguishing systems.