UFC 3-600-01
26 September 2006
6-28
POWER GENERATING AND UTILIZATION EQUIPMENT.
In general, conform electrical installations NFPA 70, National Electrical Code.
Specific details on the hazards of internal combustion engines, gas turbines,
generators, and transformers are covered in the NFPA Fire Protection Handbook
and the FM Global Data Sheets.
6-28.1
Stationary Combustion Engines, Gas Turbines, and
Generators.
Install internal combustion engines, gas turbines, and generators following the
requirements of NFPA 37, Installation and Use of Stationary Combustion
Engines and Gas Turbines, except as modified by this UFC.
6-28.1.1
Units Under 18.65 MW (25,000 Horsepower).
In buildings without automatic sprinkler protection, enclose these units with 2-
hour fire resistive construction or protect locally with automatic sprinklers.
Automatic sprinklers connected to domestic water supplies are acceptable in
accordance with NFPA 13.
6-28.1.2
Units 18.65 MW (25,000 Horsepower) and Larger.
In buildings without automatic sprinkler protection, enclose with 2-hour fire
resistive construction and protect locally with automatic sprinklers. Automatic
sprinklers connected to domestic water supplies are acceptable in accordance
with NFPA 13.
6-28.2
Transformers.
6-28.2.1
Indoor Transformers.
Indoor transformers must be installed and located in accordance with NFPA 70,
National Electrical Code.
6-28.2.2
Outdoor Transformers.
Outdoor Transformers must be installed and located in accordance with NFPA
70; ANSI/IEEE C2 National Electrical Safety Code; ANSI/IEEE 979, Guide for
Substation Fire Protection; and ANSI/IEEE C57.12 series standards for
transformers except as modified by this UFC:
Where transformers are located on or above noncombustible roofs,
suitable curbed and drained concrete mats or welded steel plates
must be underneath units and located so as not to expose roof
structures.
Oil Filled transformers must no be installed on combustible roofs.
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