Blue Opal/Electrics: Difference between revisions

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Blue Opal's electrics are all 12V.{{#mermaid:sequenceDiagram
=== Battery banks ===
participant Alice
House bank - 2x 105 Ah SLA. Effective 100 Ah.
participant Bob
Starter - 1x 110 Ah SLA. Effective 50 Ah.
   Alice->John: Hello John, how are you?
 
   loop Healthcheck
=== Terminal and driver sizes ===
      John->John: Fight against hypochondria
{| class="wikitable"
   end
|+
  Note right of John: Rational thoughts <br/>prevail...
!Area
    John-->Alice: Great!
!Item
    John->Bob: How about you?
!Fixing
    Bob-->John: Jolly good!}}
!Driver
!Stud
|-
|Battery
|Shunt
|Terminal
|10mm
|8mm
|-
|
|House
|Terminal
|14mm
|10mm
|-
|
|Starter
|Terminal
|13/14mm
|10mm
|-
|
|Blue Sea Fused Bus
|Terminal
|10mm
|8mm
|-
|
|MIDI fuses
|Terminal
|10mm
|8mm
|}
=== Core power distribution and charging===
This diagram is for the wiring in the starter and house battery bank compartments.
 
Charge and Distribution fuses are MIDI style with spare, Blue Sea 7720.
 
Solar charger fuse is inline automotive.
 
{{#mermaid:graph TD;
 
subgraph "House Battery 1"
  HB1_POS[+];
  HB1_NEG[-];
end
subgraph "House Battery 2"
  HB2_POS[+];
  HB2_NEG[-];
end
 
subgraph "Starter Battery"
   SB_POS[+];
  SB_NEG[-];
end
subgraph "House Battery Switch"
  HOU_SW_POS[S];
  HOU_SW_NEG[L];
end
subgraph "Engine Battery Switch"
  ENG_SW_POS[S];
  ENG_SW_NEG[L];
end
subgraph "Solar MPPT"
  SOL_POS[+];
  SOL_NEG[-];
end
subgraph "Mains Charger"
  MAINS_CHG_NEG[-];
  MAINS_CHG_HOU[House];
  MAINS_CHG_ENG[Starter];
end
 
subgraph "Sterling ProSplit-R"
  STERLING_STARTER[+];
  STERLING_HOUSE[+];
  STERLING_ALT[Alternator Feed];
  STERLING_NEG[-];
  STERLING_ON[Ignition Feed];
  STERLING_ALT --> STERLING_STARTER & STERLING_HOUSE;
end
 
subgraph "Engine Panel"
  IGNITION([Ignition Switch]);
end
 
subgraph "Alternator"
  ALT_GEN_POS[+];
  ALT_GEN_NEG[-];
end
subgraph "House Shunt"
  HOU_SHUNT_POS[I]
  HOU_SHUNT_NEG[O]
  HOU_SHUNT_MON[Tap]
  HOU_SHUNT_POS --> HOU_SHUNT_NEG;
  HOU_SHUNT_POS --- HOU_SHUNT_MON --- HOU_SHUNT_NEG;
end
 
 
BAT_NEG_BUS[Battery Negative Busbar];
BSA_STUD[BlueSea Ancillary]
HOU_POS_BUS[House Positive Bus]
HOU_NEG_BUS[House Negative Bus];
HOU_DIST_FUSE(Distribution Fuse 150A)
HOU_CHARGE_FUSE(Charge Fuse 70A)
STARTER_CHARGE_FUSE(Charge Fuse 70A)
SOLAR_CHARGE_FUSE(Charge Fuse 5A)
GROUND[Engine Block];
WLS_SW_POS([Windlass Switch]);
ALWAYS_ON_DIST[Always On Bus];
 
HB1_POS === HB2_POS;
HB1_NEG === HB2_NEG;
SOL_POS --- SOLAR_CHARGE_FUSE --> HB2_POS;
SOL_NEG --- HB2_NEG;
HB1_POS ==== HOU_DIST_FUSE;
HB1_NEG === SB_NEG;
 
HOU_SW_POS --- ALWAYS_ON_DIST;
STERLING_HOUSE ==> HOU_CHARGE_FUSE;
STERLING_STARTER ==> STARTER_CHARGE_FUSE;
FRIDGE[Chillbox] --- HB1_NEG;
STARTER_CHARGE_FUSE --> SB_POS;
HOU_CHARGE_FUSE --> HB1_POS;
SB_POS --- ENG_SW_POS;
SB_NEG === HOU_SHUNT_POS ;
ENG_SW_NEG --- IGNITION;
ENG_SW_NEG --- WLS_SW_POS;
ALT_GEN_POS === STERLING_ALT;
ALT_GEN_NEG === GROUND;
STERLING_NEG --- SB_NEG;
BAT_NEG_BUS ==== HOU_NEG_BUS;
MAINS_CHG_NEG === BAT_NEG_BUS;
HOU_SW_NEG === HOU_POS_BUS;
HOU_DIST_FUSE --- HOU_SW_POS;
HOU_SW_NEG === BSA_STUD;
HOU_SHUNT_NEG === BAT_NEG_BUS;
SB_NEG ==== GROUND;
MAINS_CHG_HOU --> HOU_CHARGE_FUSE;
MAINS_CHG_ENG -.- STARTER_CHARGE_FUSE;
 
classDef pos stroke:#f00
classDef fuse stroke:#00f,fill:#5c5;
class HB1_POS,HB2_POS,HOU_DIST_FUSE_POS,HOU_SHUNT_POS,SOL_POS,WLS_SW_POS,ENG_SW_POS,HOU_SW_POS pos;
class ENG_CHG_FUSE_POS,STERLING_STARTER,STERLING_HOUSE,IGNITION pos;
class MAINS_CHG_HOU,MAINS_CHG_ENG,SB_POS,ALT_GEN_POS pos;
class HOU_DIST_FUSE,HOU_CHARGE_FUSE,STARTER_CHARGE_FUSE,SOLAR_CHARGE_FUSE fuse;
 
|
config.theme = neutral
 
 
}}
Changes needed:
> Mains charger to starter battery is not fused, and should go through the `Starter Charge Fuse`; new 10mm sq needed
 
 
 
=== House wiring in battery area===
This distribution setup is used for power distribution in the saloon; it's in the same physical area as the batteries. Fuses are automotive blade.
 
{{#mermaid:graph LR;
 
HOU_SWITCH["House Battery Switch (Load)"];
BAT_NEG_BUS[Battery Negative Busbar];
HB1[House Battery 1 Negative];
 
subgraph "BlueSea Ancillary"
   BSA_STUD(Stud);
  BSA_FRIDGE(Fridge 15);
  BSA_AMPS(Ammeter 3A);
  BSA_PP1(Powerpole 20A);
  BSA_PP2(Powerpole 20A);
  BSA_USB(USB 5A);
  BSA_BILGE(Bilge 5A);
  BSA_STUD --- BSA_FRIDGE & BSA_AMPS & BSA_PP1 & BSA_PP2 & BSA_USB & BSA_BILGE;
end
 
HOU_SWITCH === BSA_STUD;
BSA_FRIDGE === FRIDGE[Chillbox] === HB1;
BSA_AMPS --- AMMETER[Ammeter] --- BAT_NEG_BUS;
BSA_PP1 --- PP1[Powerpole] --- BAT_NEG_BUS;
BSA_PP2 --- PP2[Powerpole] --- BAT_NEG_BUS;
BSA_USB --- USB_SALOON[USB Sockets] --- BAT_NEG_BUS;
BSA_BILGE --- BILGE[Bilge Pump] --- BAT_NEG_BUS;
classDef pos stroke:#f00
classDef fuse stroke:#00f,fill:#5c5;
class HOU_SWITCH pos;
class BSA_FRIDGE,BSA_AMPS,BSA_PP1,BSA_PP2,BSA_USB,BSA_BILGE fuse;
|
config.theme = neutral
 
 
}}
 
=== Always on distribution ===
 
This powers low draw devices that should be powered without the house switch being engaged. Basically, lights. Located in the wiring cabinet above and behind the chart table. Wired to supply side so it's always got power, bar the local fuse blowing.
 
{{#mermaid:graph LR;
HOU_SWITCH["House Battery Switch (Supply)"];
BAT_NEG_BUS[Battery Negative Busbar];
CAB_NEG_BUS[Wiring Cabinet -ve Bus]
 
subgraph "BlueSea 4-fuse"
  BSA_STUD(Stud);
   BSA_SALOON(Saloon 3A);
  BSA_CHART(Chart Table 3A);
  BSA_CABINET(Cabinet 1A);
  BSA_STUD --- BSA_SALOON & BSA_CHART & BSA_CABINET;
end
 
HOU_SWITCH === BSA_STUD;
BSA_SALOON --- SALOON_SW[Companionway Switch] --- SALOON[Saloon Light] --- CAB_NEG_BUS;
BSA_CHART --- CHART_SW[Chart Table Switch] --- CHART_LIGHT[Chart Table Light] --- CAB_NEG_BUS;
BSA_CABINET --- CABINET_SW[Wiring Cabinet Switch] --- CABINET_LIGHT[Cabinet Light] --- CAB_NEG_BUS;
CAB_NEG_BUS === BAT_NEG_BUS;
classDef pos stroke:#f00
classDef fuse stroke:#00f,fill:#5c5;
class HOU_SWITCH pos;
class BSA_SALOON,BSA_CHART,BSA_CABINET fuse;
|
config.theme = neutral
 
 
}}
 
=== Water pump ===
 
Wired via a relay so that the switch by the chart table just activates the relay, and the pump gets power from 6mm^2^ direct from the battery compartment.
 
{{#mermaid:graph LR;
subgraph HOU_BAT[House Battery]
HOU_NEG["-"];
HOU_POS["+"];
end
HOU_BUS[House Bus];
PUMP_SW[Pump Switch];
PUMP[Pump];
 
PUMP -- 2mm --> HOU_NEG;
HOU_POS -- 10mm --> HOU_BUS;
HOU_BUS -- 2mm --> PUMP_SW;
PUMP_SW -- 2mm --> PUMP;
|
config.theme = neutral
 
 
}}
 
 
The relay is the same as the one for the engine starter, 12V 40A SPST with 30/85/86/87 terminals, normally open.

Revision as of 06:54, 1 September 2023

Battery banks

House bank - 2x 105 Ah SLA. Effective 100 Ah. Starter - 1x 110 Ah SLA. Effective 50 Ah.

Terminal and driver sizes

Area Item Fixing Driver Stud
Battery Shunt Terminal 10mm 8mm
House Terminal 14mm 10mm
Starter Terminal 13/14mm 10mm
Blue Sea Fused Bus Terminal 10mm 8mm
MIDI fuses Terminal 10mm 8mm

Core power distribution and charging

This diagram is for the wiring in the starter and house battery bank compartments.

Charge and Distribution fuses are MIDI style with spare, Blue Sea 7720.

Solar charger fuse is inline automotive.

Changes needed: > Mains charger to starter battery is not fused, and should go through the `Starter Charge Fuse`; new 10mm sq needed


House wiring in battery area

This distribution setup is used for power distribution in the saloon; it's in the same physical area as the batteries. Fuses are automotive blade.

Always on distribution

This powers low draw devices that should be powered without the house switch being engaged. Basically, lights. Located in the wiring cabinet above and behind the chart table. Wired to supply side so it's always got power, bar the local fuse blowing.

Water pump

Wired via a relay so that the switch by the chart table just activates the relay, and the pump gets power from 6mm^2^ direct from the battery compartment.


The relay is the same as the one for the engine starter, 12V 40A SPST with 30/85/86/87 terminals, normally open.

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