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
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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
Describes requirements for the design and testing of ventilation systems including monitors and alarms for submarine main battery installations. It only applies to batteries with lead-acid cells.
| DevelopmentNote |
Supersedes DEFSTAN 02-788(2000), DEFSTAN 08-116/1(2000) and DEFSTAN 02-778(2000) (03/2005) This standard is obsolescent because it is no longer required for procurement of new equipment but is retained for maintenance purposes in support of existing in-service equipment. (07/2012)
|
| DocumentType |
Standard
|
| Pages |
24
|
| PublisherName |
UK Ministry of Defence Standards
|
| Status |
Current
|
| Supersedes |
| DEFSTAN 08-123/1(2000) : 2000 | REQUIREMENTS FOR THE DESIGN AND TESTING OF EQUIPMENTS TO MEET ENVIRONMENTAL CONDITIONS - CATEGORY 2 |
| DEFSTAN 00-41/3(1993) : 1993 | RELIABILITY AND MAINTAINABILITY MOD GUIDE TO PRACTICES AND PROCEDURES |
| DEFSTAN 08-147(PT2)/1(2000) : 2000 | REQUIREMENTS FOR DAMAGE CONTROL AND FIRE PROTECTION FOR THE SAFETY OF SURFACE SHIPS AND SUBMARINES - CATEGORY 1 - PART 2: SUBMARINES |
| BS 6941:1988 | Specification for electrical apparatus for explosive atmospheres with type of protection N |
| DEFSTAN 08-159(PT2)/1(2001) : 2001 | REQUIREMENTS FOR AIR-CONDITIONING AND VENTILATION - PART 2: HM SUBMARINES |
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