UFC 3-600-01
17 April 2003
with change 16 January 2004
There must be no window openings in first story walls within a
horizontal distance of 3 m (10 feet) from the transformers. Existing
window openings must be closed using brick or concrete block.
Window openings in the first story beyond 3 m (10 ft) and up to the
distance required in Table 6-1 or Table 6-2 horizontally from the
transformers must be protected, using wither wired glass in steel
sash or glass block.
Window openings in second and third story walls directly above the
transformers must be protected using either wired glass in steel
sash or glass block.
Overhanging eaves, where they exist, must be noncombustible.
6-27.2.2.2.1.2
Equipment Separation Distance. The separation distance
between other equipment (including adjacent transformers) must be as indicated
in Table 6-3 (For Navy and Air Force) or Table 6-4 (for Army)
Table 6-3 (Navy and Air Force)
SEPARATION DISTANCE BETWEEN OUTDOOR FLUID
INSULATED TRANSFORMERS and EQUIPMENT (INCLUDING
OTHER TRANSFORMERS)
Fluid Volume
Distance
Liquid
gal (m)
ft (m)
Less Flammable
<1,000 (3.8)
5 (1.5)
>1,000 (3.8)
25 (7.6)
Mineral Oil
<500 (1.9)
5 (1.5)
500 5,000 (1.9 19)
25 (7.6)
>5,000 (19)
50 (15.2)
64
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