Intent 1:
To supersede the requirements of other provisions
of the Code [typically Clause 3.6.2.7.(2)(b)] for the inclusion
of sprinklers in an electrical vault located in a building that is
otherwise sprinklered throughout, if certain conditions are met.
This is to limit the probability that:
- other fire hazards will be present in the vault, which
could lead to a fire involving the electrical equipment, which could
lead to the spread of fire from the vault to other parts of the building,
which could lead to harm to persons in other parts of the building,
- smoke from a fire in the vault will not be promptly
detected, which could lead to persons not being notified of the fire
situation, which could lead to delays in the evacuation or movement
of persons to a safe place, which could lead to harm to persons, and
- a fire originating in a location outside the vault will
spread into the vault, which could lead to the disruption and discontinuation
of service from equipment located in the vault, which could lead to
an undue fire hazard in the building, which could lead to harm to
persons.