Fire Protection - SOLAS Class A/B/C
SOLAS II-2 bulkhead fire-protection class A, B, C - insulation duration vs adjacent space category.
Class required
A-60 (60 min fire + temp rise)
Formula, assumptions, and limits
Class A bulkheads steel; B non-combustible. Numbers (0/15/30/60) = minutes before unexposed side reaches +139 °C mean. Watertight doors A-class.
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| Fire-resistance class | - | SOLAS II-2 Reg. 3 |