1. OS1
  2. OP1
  3. OS3


OS3 Safety in Use



Intent 1:

To limit the probability that distribution panels serving emergency lighting units will fail prematurely when exposed to fire, which could lead to emergency lighting not operating properly in a fire situation, which could lead to fire emergency response operations being delayed or ineffective, which could lead to delays in the evacuation or movement of persons to a safe place, which could lead to harm to persons.

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