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Extra resources for Radio Installations on GMDSS Ships Notice to all Classification Societies and Radio Surveyors

Example text

6. The capacity of the radio batteries should be checked at intervals not exceeding 12 months when the ship is not at sea. One method of checking the capacity is to fully discharge and recharge the batteries using normal operation current over a period of 10 hours. Assessment of the charge condition can be made at any time, but it should be done without significant discharge of the battery when the ship is at sea. g. in connection with a radio survey. 702(17), COMSAR/Circ. 16) Note: - When determining the battery capacity the following must also be taken into consideration: -The battery is normally not fully charged.

The batteries should be installed in the upper part of the ship, in an elevated position and as close to the radio equipment as possible. 7. An outdoor located battery case should be avoided due to considerable temperature variation. Note: - Ideal location for the radio batteries is in a battery room with a constant temperature of approx. 20 degrees C. The location should in general satisfy the manufacturers’ specifications with regards to temperature tolerance and environmental strain in accordance with IEC 60945 or other equivalent standards.

7. An outdoor located battery case should be avoided due to considerable temperature variation. Note: - Ideal location for the radio batteries is in a battery room with a constant temperature of approx. 20 degrees C. The location should in general satisfy the manufacturers’ specifications with regards to temperature tolerance and environmental strain in accordance with IEC 60945 or other equivalent standards. 8. Batteries of different types, different cell constructions, different capacities or different manufacturers should not be mixed in a battery bank.

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Radio Installations on GMDSS Ships Notice to all Classification Societies and Radio Surveyors by Maritime and Coastguard Agency


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