Section 7 Internal atmosphere temperature
Clasification Society 2024 - Version 9.40
Clasifications Register Rules and Regulations - Submarine Assurance Framework, July 2022 - Volume 1 Submarine Assurance - Part 4 Whole Boat Requirements - Chapter 2 Transverse Criteria - Section 7 Internal atmosphere temperature

Section 7 Internal atmosphere temperature

Parent topic: Chapter 2 Transverse Criteria

7.1 Functional objective

7.1.1 The internal submarine, systems, equipment and components shall be able to operate when exposed to the range of internal atmosphere temperatures which can be experienced on a submarine for all foreseeable operating conditions.

7.2 Performance requirements

7.2.1 The maximum and minimum static and transient internal atmosphere temperatures shall be defined for normal and abnormal operating conditions.

7.2.2 The maximum and minimum transient internal atmosphere temperature shall be defined for emergency operating conditions. The following scenarios shall be considered: loss of HVAC or cooling, fire, unintended munitions reactions, overload of mechanical or electrical systems, loss of cryogenic material.

7.2.3  Temperature limits are to be set giving due consideration to all sources of heating and cooling within the submarine and heat gain from solar radiation.

7.2.4 Temperatures may be defined for a compartment, or groups of compartments, and are to include any localised heating from equipment operation.

7.2.5 The atmosphere temperatures defined shall take account of the immediate capability and longer-term health of the embarked persons.

7.2.6 The systems, equipment and components are to be verified as being effective and safe for the full range of internal atmosphere temperatures.

7.2.7 Atmosphere Control requirements shall be complied with.

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