Multiple systems change the hazard picture
Modern warehouses may combine refrigeration, extensive electrical infrastructure and rooftop or building-integrated solar equipment. NFPA’s framing cautions against assessing each system in isolation.
Specialized knowledge matters
The official summary says managing cold storage and solar PV requires specialized safety knowledge. It does not provide a universal diagnosis for warehouse fires, so site-specific investigation and applicable codes remain essential.
Why the update matters
Commercial electrical products operate within larger building and energy systems. Device selection is therefore only one part of coordinated facility safety.