46 C.F.R. § 76.23-5 Zoning.
Title 46 - Shipping
(a) Separate zones may be used for each deck, and on any particular deck, spaces separated by “A” or “B” Class bulkheads may be separately zoned. (b) On any particular deck, large common areas may be zoned in accordance with table 76.23–5(b). All such zones within one common area shall be of approximately the same size. Zones of this type shall overlap in such a manner that the end sprinkler heads of both adjoining zones will cover the identical area.
Title 46: Shipping
PART 76—FIRE PROTECTION EQUIPMENT
Subpart 76.23—Manual Sprinkling System, Details
§ 76.23-5 Zoning.
Table 76.23-5(b)------------------------------------------------------------------------ Square feet of common deck area Maximum-------------------------------------------------------------- number of Over Not over zones------------------------------------------------------------------------ 800 1800............................................... 1,800 21,800............................................. 3,000 33,000............................................. 5,000 45,000............................................. 9,000 59,000............................................. 16,000 616,000............................................ 30,000 730,000............................................ ......... 8------------------------------------------------------------------------
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