76.25-5—Zoning.
(a)
The automatic sprinkling system shall be divided into separate zones to restrict the area covered by any particular alarm signal.
(c)
The sprinkling zone may cover more than one deck, in which case, the boundaries shall be maintained in a vertical line insofar as is reasonable and practicable. The boundaries of the zone shall be coincident with bulkheads of Class “A” construction such as main vertical zone or watertight bulkheads.