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9.1.2 RM GMDSS Compact-Console Area A3 with 250 W MF/HF
GMDSS Reserve Battery Calculation ( 24 V DC ) for Raytheon Marine GmbH GMDSS
Compact-Console Area A3 with 250 W MF/HF
According to IMO Regulation COMSAR/Circ.16 4. March 1998
A: with Emergency Generator (SOLAS IV 13.2 )
The GMDSS equipment shall be able to operate one (1) hour on reserve power
with 50% of time in transmission mode and 50% in receiving mode.
B: without Emergency Generator (SOLAS IV 13.2 )
The GMDSS equipment shall be able to operate six (6) hours on reserve power
with 50% of time in transmission mode and 50 % of receiving mode.
Equipment
Type
MF/HF
STR 2000 R
Inmarsat C
STR 1500 CN
VHF 1 with DSC
VHF1000DSC
VHF 2 with DSC
VHF1000DSC
AIS
RM 808 AIS
Emergency Light
Total
Calculation:
Case A:
1h x ( 0.5 I TX + I RX + I Add ) x 1.4 = 41.44 Ah
recommend battery capacity is 86 Ah
Charger:
I Charg x 0.1 I Batt/h = 8.6 A
recommend charger is type 20 A
Case B:
6h x ( 0.5 I TX + I RX + I Add ) x 1.4 = 248.66 Ah
The battery calculation should not be used for uninterruptible power supply (UPS)
configuration.
9.1.3 RM GMDSS Compact-Console Area A3 with 400 W MF/HF
GMDSS Reserve Battery Calculation (24 V DC) for Raytheon Marine GmbH GMDSS
Compact-Console Area A3 with 400 W MF/HF
According to IMO Regulation COMSAR/Circ.16 4. March 1998
A: with Emergency Generator ( SOLAS IV 13.2 )
The GMDSS equipment shall be able to operate one (1) hour on reserve power
With 50% of time in transmission mode and 50% in receiving mode.
B: without Emergency Generator ( SOLAS IV 13.2 )
The GMDSS equipment shall be able to operate six (6) hours on reserve power
with 50% of time in transmission mode and 50 % of receiving mode.
Equipment
Type
MF/HF
STR 2000
Inmarsat C
STR 1500 CN
VHF 1 with DSC
VHF1000DSC
VHF 2 with DSC
VHF1000DSC
AIS
RM 808 AIS
Emergency Light
Total
Installation Manual
Transmitting
Receiving
15 A
4 A
5 A
1,8 A
6,5 A
0,65 A incl.DSC
6,5 A
0,65 A incl.DSC
5,0 A
1,0 A
38 A
8,1 A
Transmitting
Receiving
18.75 A
4 A
5 A
1,8 A
6.5 A
0,65 A incl.DSC
6.5 A
0,65 A incl.DSC
5.0 A
1,0A
41.75 A
8,1 A
55
Additional
incl.DSC
incl.EGC
2,5 A
2.5 A
Additional
incl.DSC
incl.EGC
2,5 A
2.5 A
Y1-03-0212 Rev. E
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