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4.8.4.6.(1)
OS1OP1OH5
ObjectiveOS1 Fire Safety
Attribution
Application
Application 1: 
Signage and access openings for below deck pipeline connections and shut-off valves [required in Article 4.8.4.5.] for pipelines supplying flammable liquids and combustible liquids from shore to piers and wharves.
This applies to piers and wharves that have installations for flammable liquids or combustible liquids.
Exceptions: 
except:
  • marine fuel dispensing stations, which are covered in Section 4.6., and
  • as stated in Sentences 4.1.1.1.(2) and (3), which apply to unique hazards at process plants, in transportation, for oil burning equipment, on farms and isolated construction projects, and the storage of aerosol products.
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Intent
Intent 1: 
To limit the probability of delays in shutting off the flow of liquid in an emergency situation [a fire involving the liquid], which could lead to the escape of liquid not being minimized, which could lead to the spread of fire, which could lead to harm to persons.
Intent 2: 
To limit the probability of delays in shutting off the flow of liquid in an emergency situation [a liquid spill incident], which could lead to the spread of liquid, which could lead to the ignition of vapour from a nearby ignition source, which could lead to harm to persons.
Intent 3: 
To limit the probability that inadequate inspection and maintenance will lead to the unwanted escape of liquid, which could lead to the spread of liquid, which could lead to the ignition of vapour from a nearby ignition source, which could lead to harm to persons.
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