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5.3.1.6.(2)
ApplicationIntent
OP1OS1
ObjectiveOP1 Fire Protection of the Building or Facility
Attribution
[F02-OP1.3]
Application
Application 1: 
Explosion venting in:
  • process equipment or buildings where combustible dusts are produced in concentrations that create an explosion hazard, as provided in Sentence 5.3.1.6.(1),
  • dust collectors having a capacity greater than 0.5 m3/s, as required in Sentences 5.3.1.4.(1) and 5.3.1.4.(2),
  • rooms for dust collectors having a capacity greater than 0.5 m3/s, as provided in Sentence 5.3.1.4.(2), and
  • galleries, tunnels and bucket leg enclosures associated with grain conveyor equipment, as required in Sentence 5.3.3.2.(4).
Exceptions: 
except as provided in Sentences 5.3.1.7.(1) and (2), which applies when an explosion prevention system is provided.
Application 2: 
This also applies to dry powder spray coating operations covered in Sentence 5.4.5.2.(1).
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Intent
Intent 1: 
To limit the probability that a dust explosion will lead to critical structural and mechanical damage to the building, which could lead to the failure of structural or mechanical systems, which could lead to damage to the building.
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