Fire Code of the Philippines Ebook - SafetySignsPH.com Fire Code of the Philippines eBook - SafetySignsPH | Page 334

vi.a. Close the quarter turn fuel delivery valve nearest the
engine unless engine operation is required.
vi.b. Prohibit torches, welding, or grinding equipment on or
near high-pressure fuel lines and containers.
vi.c. Prevent damage to containers, including actions such as
dropping, dragging, or rolling of the container.
vi.d. Prevent exposure of composite wrapped containers to
strong chemicals such as battery acid or metal cleaning
solvents.
vi.e. Prevent hoists or jacks from coming into direct contact
with containers.
vi.f.
Provision of at least a stand-by 20B:C type of fire
extinguisher readily available to provide first aid fire
protection.
vii. A regulated and safe discharge of CNG from vehicle containers
shall comply with the following:
vii.a. The venting or depressurization of a compressed natural
gas container shall be performed only by trained
personnel using written procedures. The gas to be
removed from the container shall be discharged into a
closed transfer system and shall be vented by an
approved atmospheric venting method.
vii.b. Personnel performing container depressurization shall:
•
•
•
Use grounding to prevent static electrical charge
build-up;
Limit the rate of gas release from plastic-lined
containers to a value not greater than that specified
by the container manufacturer; and
Restrain containers during depressurization to prevent
container movement.
viii. Direct gas venting shall be done through a vent tube that will
divert the gas flow to the atmosphere. The vent tube shall have
a gas-tight connection to the container prior to venting, and all
components shall be properly grounded. The vent tube shall be
constructed of Schedule 80 pipe of at least five centimeter (5
cm) diameter. The vent tube shall not be provided with any
feature that would limit or obstruct gas flow.
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