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Emergency Generator SOLAS Requirement – memorization technique:
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Engr. Shafiul Bari
Shafiul Bari is a seasoned Marine Engineer with extensive experience in ship design, maintenance, and marine propulsion systems. With a deep technical knowledge of ship engineering and a passion for advancing maritime technology, Shafiul shares practical insights and expert advice to help marine professionals and enthusiasts better understand the complexities of ship systems. Through his website, he aims to bridge the gap between technical theory and real-world application, fostering a community of informed and skilled maritime engineers.
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View Author Profile →Emergency Power Source Types
- Generator
- Accumulator battery
Generator Requirements
- Prime Mover: Driven by a suitable prime mover with independent fuel supply
- Fuel Flashpoint: Not less than 43°C (closed cup test)
Location and Installation
- Above the uppermost continuous deck
- Away from machinery space
- Behind the collision bulkhead
- Main switchboard should not interfere with emergency power supply, control, and distribution
Operational Capabilities
- List and Trim: Operable with a list of up to 22.5° and a trim of up to 10°
- Duration:
- Cargo ship: 18 hours
- Passenger ship: 36 hours
- Starting Temperature: 0°C (heating arrangement required for lower temperatures)
- Automatic Start: Within 45 seconds after main power failure
- Failure Indication: To be given in ECR if emergency generator fails to start
Starting Arrangements
- Primary: Battery
- Always fully charged
- Capable of 3 consecutive starts
- Secondary: Pneumatic or hydraulic
- 3 consecutive starts within 30 minutes
- First start within 12 minutes
Transitional Emergency Power
- Type: Accumulator battery
- Function: Provides power automatically to emergency lighting during main or emergency power failure
- Voltage Maintenance: Within 12% above or below nominal voltage during discharge
Accumulator Battery as Emergency Source
When used as the main emergency power source:
- Carry emergency load without recharging
- Maintain voltage within 12% of nominal during discharge
- Automatically connect to emergency switchboard upon main power failure
- Immediately supply power to emergency lighting
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