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2703.10.1 Workstations and tools.
The design of the sprinkler system in the area shall take into consideration the spray pattern and the effect on the equipment.
2703.10.1.1 Combustible workstations.
A sprinkler head shall be installed within each branch exhaust connection or individual plenums of workstations of combustible construction. The sprinkler head in the exhaust connection or plenum shall be located not more than 2 feet (610 mm) from the point of the duct connection or the connection to the plenum. When necessary to prevent corrosion, the sprinkler head and connecting piping in the duct shall be coated with approved or listed corrosion-resistant materials. The sprinkler head shall be accessible for periodic inspection in accordance with FC Chapter 9.
Exceptions:
1. Alternative fire extinguishing systems shall be allowed where approved. Activation of such systems shall deactivate the related processing equipment.
2. Process equipment that operates at temperatures exceeding 932°F (500°C) and has automatic shutdown capabilities that will interrupt HPM flow for hazardous materials.
3. Exhaust ducts 10 inches (254 mm) or less in diameter from flammable gas storage cabinets that are part of a workstation.
4. Ducts listed or approved for use without internal sprinkler protection.
2703.10.1.2 Combustible tools.
Where the horizontal surface of a combustible tool is obstructed from ceiling sprinkler discharge, sprinkler protection that covers the horizontal surface of the tool shall be provided.
Exceptions:
1. A gaseous fire extinguishing local surface application system shall be allowed as an alternative to sprinklers when approved. Gaseous fire extinguishing systems shall be actuated by infrared (IR) or ultraviolet/infrared (UVIR) optical detectors.
2. Tools constructed of materials that are listed as Class 1 or Class 2 in accordance with UL 2360 or approved for use without internal fire extinguishing system protection.
2703.10.2 Gas cabinets and exhausted enclosures.
A sprinkler system shall be provided in gas cabinets and exhausted enclosures containing HPM compressed gases.
Exception: Gas cabinets located in a HPM room other than those cabinets containing pyrophoric gases.
2703.10.3 Pass-throughs in exit access corridors.
Pass-throughs in exit access corridors shall be protected throughout by a sprinkler system.
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