to define the shock testing and qualification requirements for naval electronic and electrical equipment. It ensures that onboard machinery can withstand the dynamic disturbances caused by sudden impacts, such as underwater explosions. indiannavy.gov.in Key Technical Specifications According to Naval Shock Testing Guidelines (BR 3021) , the manual categorizes equipment into specific Naval Shock Standards (NSS) based on its installation location: NSS Grade I : Required for equipment fitted below the waterline Vertical Shock Lateral Shock NSS Grade II : Required for equipment fitted above the waterline Vertical Shock Lateral Shock Manual Structure & Scope The manual is typically divided into two volumes: indiannavy.gov.in
: This applies to equipment fitted above the waterline . Vertical Shock : 50g for 11 milliseconds. Lateral Shock : 22g for 11 milliseconds. Operational and Maintenance Guidelines br 3021 shock manual
Failure to follow this break-in voids any warranty claims. to define the shock testing and qualification requirements