21.06.2017

POWER SOURCES

2.3.1 All navigation equipment installed on the ship should be provided with power from the main and emergency sources of electrical energy.

2.3.2 The switchboard of navigation equipment must be powered from the main switchboard and emergency switchboard by two independent feeders (see also part XI "Electrical equipment" of the rules for the classification and construction of sea-going vessels).

2.3.3. The power of shipborne navigation equipment should be provided in accordance with the requirements of Table. 2.3.3.

On board it is recommended to provide an uninterruptible power supply device that ensures the operation of navigation equipment and the safety of navigation information in case of failure of the main and emergency sources of electric power, and also during the period of time required for switching from the main source of electrical energy to power from an emergency source or back. At the same time, light and sound signaling about switching to power supply using the uninterruptible power supply should be provided in the place from which the ship is usually operated. The alarm must be non-disconnected and must automatically return to its original state after the restoration of the electric power supply from the ship's network.

2.3.4 All navigational instruments and devices (with the exception of a gyro compass and course control system or a ship trajectory) designed to supply electric power must be powered by separate feeders from one common shield of navigation equipment.

The gyro compass must be powered in accordance with 3.7.2.3 (3.7.2.3 The gyrocompass must be powered from the main switchboard and emergency switchboard via two independent feeders).

The course management system and the ship's path control system shall be powered in accordance with 5.5.1 2 of Section XI Electrical Equipment of the Rules for the Classification and Construction of Sea Vessels.

2.3.5. If certain types of navigation equipment are to be powered by various primary kinds of current or different primary voltages, it is permissible, on an exceptional basis, to supply such equipment from other switchboards, with their mandatory location near the main shield of navigation equipment.

2.3.6 When feeding certain types of equipment from additional switchboards, these boards must be powered from the respective sources by separate feeders.

2.3.7 Switches and fuses or installation circuit breakers on the outgoing lines for each type of navigation equipment shall be provided on the switchboard (boards) of navigation equipment.

Connection to the navigation equipment panel of consumers that are not related to navigation equipment is not allowed.

2.3.8 Any battery, the use of which is permitted for the emergency power supply of several consumers, must be of sufficient capacity to provide the required table. 2.3.3 duration of continuous operation of all connected consumers at the same time without additional recharging.

Compass Magnetic (main and spare) 
Main and emergency sources of electrical energy (power from an emergency source of electricity can be replaced by battery power) 

Minimum number of hours of continuous operation of the equipment 6
 
Compass gyroscopic 
Main and emergency sources of electricity
 
Log 
The main and emergency sources of electricity 
 
Meter speed of rotation 
Main and emergency sources of electrical energy 
 
Echo sounder 
Main and emergency sources of electrical energy 
 
Radiol okatsionnaya station 
main and emergency sources of electrical energy 
 
Means of automatic radar laying 
Main and emergency sources of electrical energy 
 
Radio navigation system receivers (Receivers of radio navigation systems used to automatically enter information about the coordinates of the ship and the time of their determination to the radio systems of the GMDSS should also receive power from a backup source to supply the radio installation required by 2.3.3 of the part IV «Radio Equipment")
main and emergency electrical energy 
minimum number of hours of continuous operation equ 1 Hovhan
 






uniform time system 
main source of electrical energy 
 
Beacon installation 
The main source of electrical energy and batteries (battery powered can be replaced by power from an emergency source of electrical energy) 
Minimum number of hours of continuous operation of the equipment 6
 
Electronic cartographic navigation and information system 
The main and emergency sources of electrical energy 

Back-up electronic cartographic navigation and information system 
Main and emergency sources of electrical energy 
 
System for receiving external audio signals 
Main and emergency sources of electrical energy 

VDR Data Recorder, Simplified Voyage Data Recorder 
Main and emergency sources of electric power, accumulators
(built-in) (The DDR / U-DDR should have its own automatic charger to keep the batteries in a charged state and recharge fully discharged batteries within 10 hours after DDR recovery power from the main electric power source)
Minimum number of hours of continuous operation of the equipment 2
 
apparatus universal automatic and entifikatsionnoy System (AIS) 
The main and emergency sources of electrical power (if on ships constructed before July 1, 200 2, at the emergency source of electrical power is an accumulator 
battery, then its capacity should be sufficient to ensure operation for at least 1 hour.)
 
Ship heading control system 
The main source of electrical energy 

The ship's trajectory control system 
The main source of electrical energy 
 
The distance course transmission device 
The main and emergency sources of electrical energy 

Equipment for the identification and tracking of vessels at long-range (LTRS systems) 
Main and emergency sources of electrical energy (In the event that the 
radio equipment required by Part IV "Radio Equipment" is used as LTR equipment,
electricity must be  provided in accordance with 2.3 of the specified part of the Rules)

Captain's watchkeeping system (KDVP) 
Basic source of electrical energy 
Minimum number of hours of continuous operation of equipment 6 (5.22.15 The system for monitoring the capacity of the watchmaster's assistant officer shall be powered by the main source of the ship's electrical energy. 
Means of indication of a malfunction and the absence of power, as well as all elements of a special 
button "Emergency call" (if it is part of the KDVP), must be powered by a power 
source that is a battery that is maintained in good condition, which 
can be a ship emergency source, stipulated in Part XI "Electrical Equipment" of the Rules for the Classification and Construction of Sea-going Ships, for at least 6 hours).

Shipborne hydrometeorological complex 
Main and emergency sources of electrical energy 
 
Analog-digital signal converter 
Main and emergency sources of electrical energy 
 
Duplicator of digital signals 
Main and emergency sources of electrical energy