9.1.2RM GMDSS Compact-Console Area A3 with 250 W MF/HF
GMDSS Reserve Battery Calculation ( 24 V DC ) for Raytheon Marine GmbH GMDSS
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 | Transmitting | Receiving | Additional | |
MF/HF | STR 2000 R | 15 A | 4 A | incl.DSC |
|
Inmarsat C | STR 1500 CN | 5 A | 1,8 A | incl.EGC |
|
VHF 1 with DSC | VHF1000DSC | 6,5 A | 0,65 A incl.DSC |
| |
VHF 2 with DSC | VHF1000DSC | 6,5 A | 0,65 A incl.DSC |
| |
AIS | RM 808 AIS | 5,0 A | 1,0 A |
|
|
Emergency Light |
|
|
|
| 2,5 A |
Total |
| 38 A | 8,1 A |
| 2.5 A |
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.
9.1.3RM GMDSS
GMDSS Reserve Battery Calculation (24 V DC) for Raytheon Marine GmbH GMDSS
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 | Transmitting | Receiving | Additional | |
MF/HF | STR 2000 | 18.75 A | 4 A | incl.DSC |
|
Inmarsat C | STR 1500 CN | 5 A | 1,8 A | incl.EGC |
|
VHF 1 with DSC | VHF1000DSC | 6.5 A | 0,65 A incl.DSC |
| |
VHF 2 with DSC | VHF1000DSC | 6.5 A | 0,65 A incl.DSC |
| |
AIS | RM 808 AIS | 5.0 A | 1,0A |
|
|
Emergency Light |
|
|
|
| 2,5 A |
Total |
| 41.75 A | 8,1 A |
| 2.5 A |
Calculation: |
|
|
|
|
|
| 58 |
