DEFSTAN 02-788/1(2005) : 2005
Current
The latest, up-to-date edition.
REQUIREMENTS FOR THE DESIGN AND TESTING OF SUBMARINE MAIN BATTERY VENTILATION SYSTEMS
Hardcopy , PDF
English
02-03-2005
1 Scope
2 Warning
3 Related Documents
4 General Requirements
5 Definitions
6 Abbreviations
7 Function
7.1 Hydrogen Concentration Limits
7.2 Requirements During Build and Refit
7.3 Documentation
7.4 Ship Operating Procedures
7.5 Planned Maintenance Requirements
8 General Design Assumptions
8.1 Hydrogen Evolution Calculations
8.1.1 Modes 1 and 2 - Gassing Charges
8.1.2 Mode 3 - Open Circuit/Discharge
8.1.3 Hydrogen Evolution Volumes
8.1.4 Design Assumption for Hydrogen Evolution
8.1.5 Worst-Case Pressure and Temperature
8.1.6 Design Assumptions for Battery Ventilation Air
8.2 General Design Requirements
8.2.1 Battery Ventilation System Design
8.2.2 Nuclear Submarines - Ventilation States
8.2.3 Conventional Submarines - Ventilation line-ups
8.2.4 System Redundancy
8.2.5 Ventilation Arrangements within Battery Tanks
8.2.6 Hydrogen Removal - Gassing Charges (Mode 1)
8.2.7 Hydrogen Removal - Charges below the Gassing
Threshold Voltage (Mode 2)
8.2.8 Hydrogen Removal - Open Circuit/Discharge Conditions
(Mode 3)
8.2.9 Electrical Supplies to Fans
8.2.10 Electrical Equipment
8.2.11 Dust Filters and Flameproof Gauzes
8.2.12 Fire Flaps
8.2.13 Remote Operation
8.3 Monitors, Indicators and Alarms
8.3.1 General
8.3.2 Ventilation Flaps, Valves, etc Indication
8.3.3 Fan Status
8.3.4 Airflow
8.3.5 Battery Voltage Alarm
8.3.6 LP Blower Tripped Alarm
8.3.7 Hydrogen Concentration
8.4 Hazard Analysis
8.5 Test and Trial Requirements
8.5.1 Test Occasions
8.5.2 Trunking Air Tests (Shop)
8.5.3 Trunking Air Tests (Installed)
8.5.4 Airflow Test
8.5.5 Hydrogen Clearing Fans Trial-(Mode 3 Battery
Ventilation)
8.5.6 Hydrogen Content Trials
8.5.7 Reduced Airflows for HCTs
8.5.8 Hydrogen Concentration Corrections during HCTs
8.5.9 Airflow Indicator Trial
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