SOLAS requires regular testing of Emergency Sources of Electrical Power. Describe the recommended routine testing procedure for the emergency generator, in accordance with Maritime & Coastguard Agency (MCA) guidance.(10)
Recommended Routine Testing Procedure for Emergency Generator
Frequency of testing
Emergency generator must be tested at least weekly to ensure immediate readiness for use.
Automatic starting system
Test should begin by simulating a blackout (loss of main power supply) to confirm the generator starts automatically.
Starting arrangements
The generator must start using its primary means (normally electric start).
Where fitted, the secondary means of starting (hydraulic, pneumatic, or manual) should also be tested at intervals as required by MCA guidance.
Time requirement
Confirm that the generator reaches operational speed and voltage within 45 seconds of power failure, in accordance with SOLAS.
Load testing
The generator should be connected to the emergency switchboard and tested on at least 50% of its maximum load (or as near as practicable).
Record stable operation under load.
Automatic load transfer
Verify that essential services (emergency lighting, communications, fire detection, navigation lights, steering, etc.) automatically receive power through the emergency switchboard.
Monitoring during operation
Check voltage, frequency, lubrication pressure, cooling system, fuel supply, and exhaust for normal operating parameters.
Running period
The test run should last for sufficient duration (typically 30 minutes) to prove reliability under load.
Alarms and safety devices
Confirm that alarms and protective devices (e.g., low lube oil pressure, overspeed trip, high water temperature) are operational during the test.
Record keeping
The results of the test, including date, time, load carried, and any faults, must be entered in the log book or maintenance records in compliance with MCA and ISM Code requirements.
