The sprinklers shall be resistant to corrosion by the marine atmosphere. In accommodation and service spaces the sprinklers shall come into operation within the temperature range from 68°C to 79°C, except that in locations such as drying rooms, where high ambient temperatures might be expected, the operating temperature may be increased by not more than 30°C above the maximum deckhead temperature.
A quantity of spare sprinkler heads shall be provided for all types and ratings installed on the ship as follows:
Total number of heads |
Required number of spares |
|
<300 |
6 |
| 300 to 1000 |
12 |
| >1000 |
24 |
The number of spare sprinkler heads of any type need not exceed the total number of heads installed of that type.
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