Fire Code of the Philippines Ebook - SafetySignsPH.com Fire Code of the Philippines eBook - SafetySignsPH | Page 310

6. Location of Belowground and Inground Containers with Respect to
Exposure
a. The minimum distance from
inground flammable cryogenic
building, property line or public
or combustible liquid shall be
below:
the edge of belowground and
containers to the nearest important
way from aboveground flammable
in accordance with the Table 24
Table 24: MINIMUM DISTANCE FROM THE EDGE OF BELOWGROUND
AND INGROUND CRYOGENIC CONTAINERS BASED ON CONTAINER
CAPACITY
CONTAINER CAPACITY
MINIMUM DISTANCE
a. Less than one thousand nine a. One hundred fifty five (155)
hundred (1,900) liters
centimeters
b. One thousand nine hundred b. Seven and three-fourth (7.75)
meters
(1,900) liters to three
thousand eight hundred
(3,800) liters
c. Over three thousand eight
c. Fifteen and a half (15.5)
hundred (3,800) liters
meters
7. Pressure Relief Vent Piping
a. The piping of all relief vents shall be at least equal to the area of
opening of the relief valve and so arranged as not to unduly restrict
the flow.
b. Relief devices and/or relief device vents shall be so arranged that
escaping gas will discharge unobstructed to the open air and not
impinge on personnel, containers, equipment and structures or
enter enclosed spaces.
c. Vents shall be installed in such a manner as to exclude or remove
moisture and condensate, and to prevent malfunction due to
freezing or icing. Drains shall be so installed as to prevent possible
flame impingement on the container, piping, equipment and
structures.
8. Dispensing of flammable cryogenic fluids, liquefied, or liquid oxidizers
shall be at a locations not less than one and a half meter (1.5 m) in any
direction away from any exterior source of ignition, openings into
direct-vent (sealed combustion system) appliances, or mechanical
ventilation air intakes.
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