Difference between revisions of "Task: Refurbish breaker panel"

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* Panel AC: lower, inboard of Panel 1 (all 120v AC breakers)
 
* Panel AC: lower, inboard of Panel 1 (all 120v AC breakers)
 
* Panel 4: very top
 
* Panel 4: very top
 +
 +
The breaker panel at the nav station is designated:
 +
 +
* Panel N
  
 
Many of the screws, terminals, and buss bars on these breakers are extremely corroded and some of the breakers will need to be replaced. Note that the breakers on Panel 4 are of a different make and look to be in good shape.
 
Many of the screws, terminals, and buss bars on these breakers are extremely corroded and some of the breakers will need to be replaced. Note that the breakers on Panel 4 are of a different make and look to be in good shape.
Line 15: Line 19:
 
The existing breakers will be cleaned and tested.  Ones that do not work will be replaced.
 
The existing breakers will be cleaned and tested.  Ones that do not work will be replaced.
  
−
A wiring diagram has been started: [[Image:X-dimension_breakers.pdf]]
+
A wiring diagram of the original wiring is here: [http://sailing.mit.edu/bluewater/X-dimension%20breakers.pdf http://sailing.mit.edu/bluewater/X-dimension breakers.pdf] (upload on wiki is offline as of 5/10/2010)
 +
 
 +
== Status 4/4/2012 ==
 +
 
 +
All of the breakers from panels 1, 2, 3, and the AC panel have had their contacts cleaned and have been tested under load. 
 +
 
 +
Breakers that are marked good were able to handle about 100% of their rated amperage for over a minute without getting warm, and when increased to 150% - 200% of their rating, tripped in less than 30 seconds.  This corresponds to the breakers' specification.
 +
 
 +
Of the breakers mareked BAD, some of them didn't work at all (open).  Some of them became very hot under load.  Some of them had intermittent connectivity (these all got hot as well), and one of them actually started to smoke.
 +
 
 +
{| border="1" cellspacing="0" style="margin-left: 10px"
 +
| Panel || A || Name || Status
 +
|-
 +
| 1-1 || 30 || Cabin Lites || Good
 +
|-
 +
| 1-2 || 30 || Cabin Lites (red) || Good
 +
|-
 +
| 1-3 || 5 || Spreader Lts || Good
 +
|-
 +
| 1-4 || 15 || Mast Head || Good
 +
|-
 +
| 1-5 || 10 || Bow || Good
 +
|-
 +
| 1-6 || 15 || Nav Lite Main || BAD
 +
|-
 +
| 1-7 || 10 || Auto Pilot || Good
 +
|-
 +
| 2-1 || 15 || Nav Lite Aux || Good
 +
|-
 +
| 2-2 || 10 || Compass || Good
 +
|-
 +
| 2-3 || 15 || F.W. Pump || Good
 +
|-
 +
| 2-4 || 15 || Salt || Good
 +
|-
 +
| 2-5 || 15 || N/G || Good
 +
|-
 +
| 2-6 || 30 || Nav. Inst. || BAD (hot, trips @ 25A)
 +
|-
 +
| 3-1 || 30 || Radio Phone || BAD (intermittent)
 +
|-
 +
| 3-2 || 5 || Stove || Good
 +
|-
 +
| 3-3 || 30 || F. Pump || BAD (smokes!)
 +
|-
 +
| 3-4 || 15 || Footlites || Good
 +
|-
 +
| 3-5 || 15 || (blank) || BAD (open)
 +
|-
 +
| 3-6 || 15 || Bilge Blow || BAD (hot)
 +
|-
 +
| 4-1 || 5 || Spare || ?
 +
|-
 +
| 4-2 || 10 || Bilge || ?
 +
|-
 +
| 4-3 || 15 || Fridge || ?
 +
|-
 +
| AC-1 || 30 || AC Main || BAD (case damaged)
 +
|-
 +
| AC-2 || 15 || Spare || BAD (open)
 +
|-
 +
| AC-3 || 15 || Hot Water || BAD (open)
 +
|-
 +
| AC-4 || 15 || Outlets 120v || BAD (open)
 +
|-
 +
| AC-5 || 15 || Battery Charger || BAD (open)
 +
|-
 +
| AC-6 || 15 || Spare || Good
 +
|}
 +
 
 +
 
 +
=== Status 4/20/2012 ===
 +
 
 +
Breakers from Nav Station (Panel N) have been removed and
 +
cleaned, but not yet tested.  Several of these breakers were
 +
physically damaged during the removal process due to severe
 +
corrosion.
 +
 
 +
{| border="1" cellspacing="0" style="margin-left: 10px"
 +
| Panel || A || Name || Status
 +
|-
 +
| N-1 || 30 || FM Radio Phone || BAD (intermittent)
 +
|-
 +
| N-2 || 5 || Free || BAD (damaged)
 +
|-
 +
| N-3 || 15 || GPS || GOOD (pushbutton type)
 +
|-
 +
| N-4 || 15 || Free || GOOD
 +
|-
 +
| N-5 || 15 || NavMan || BAD (damaged)
 +
|-
 +
| N-6 || 15 || Sta Light || BAD (damaged)
 +
|}
  
  
Line 22: Line 118:
 
Here is a list of the 12-volt circuits on the boat.  Where appropriate new names have been suggested. The Orig. Breaker column includes the breaker rating and the panel number and location of the original breakers.
 
Here is a list of the 12-volt circuits on the boat.  Where appropriate new names have been suggested. The Orig. Breaker column includes the breaker rating and the panel number and location of the original breakers.
  
−
{| border="0" cellspacing="0" style="margin-left: 10px"
+
{| border="1" cellspacing="0" style="margin-left: 10px"
 
|'''Circuit Name ''' || '''Orig. Name''' || '''Orig. Breaker''' || '''True Amps'''
 
|'''Circuit Name ''' || '''Orig. Name''' || '''Orig. Breaker''' || '''True Amps'''
 
|-
 
|-
−
| Cabin Lights || Cabin Lights || 30A 1-1 || ?
+
| Cabin Lights [1]|| Cabin Lights || 30A 1-1 || 20A
 
|-
 
|-
−
| - [1] || Cabin Lights (red) || 30A 1-3 || ?
+
| Footlights || Footlights || 15A 3-4 || <15A ?
 +
|-
 +
| Propane || Stove || 5A 3-2 || < 5A
 +
|-
 +
| Fridge || Fridge || 15A 4-3 || <15A ?
 +
|-
 +
| Bilge Blower [2] || Bilge Blow || 15A 3-6 || <15A
 +
|-
 +
| Aux Sockets [3] || n/a || n/a || ? (cigarette lighter sockets)
 +
|-
 +
| Auto Pilot || Auto Pilot || 10A 1-7 || ? (not connected)
 +
|-
 +
| Fresh Water Pump || F.W. Pump || 15A 2-3 || 10A
 +
|-
 +
| Radar || Radar || 30A 2-6 || 5A
 +
|-
 +
| VHF Radio || FM Radio Phone || 30A N-1 || 4.9A (6A fuse recommended)
 +
|-
 +
| Nav Inst. [4] || GPS & NavMan || 15A N-3 & 15A N-5 || 5A
 
|-
 
|-
 
| Foredeck Light || Spreader Lts || 5A 1-3 || 1.7A (20W bulb)
 
| Foredeck Light || Spreader Lts || 5A 1-3 || 1.7A (20W bulb)
 
|-
 
|-
−
| Tri-Color || Mast Head || 15A 1-4 || ?
+
| Tri-Color || Mast Head || 15A 1-4 || 2A (25W bulb)
 
|-
 
|-
 
| Steaming Light || Bow || 10A 1-5 || 0.4A (5W bulb)
 
| Steaming Light || Bow || 10A 1-5 || 0.4A (5W bulb)
 
|-
 
|-
−
| Nav Lights || Nav Lite Main || 15A 1-6 || ?
+
| Nav Lights || Nav Lite Main || 15A 1-6 || 3A (3 x 12W bulbs)
 
|-
 
|-
−
| Auto Pilot || Auto Pilot || 10A 1-7 || ?
+
| Inst. Lights[5] || Compass || 10A 2-2 || 0.04A
 
|-
 
|-
−
| Nav Lights Aux [2] || Nav Lite Aux || 15A 2-1 || ?
+
| Anchor Light [6] || n/a || n/a || 0.8A (10W bulb)
 
|-
 
|-
−
| Compass [3] || Compass || 10A 2-2 || ?
+
| Horn [7] || n/a || n/a || 3A
 
|-
 
|-
−
| Fresh Water Pump || F.W. Pump || 15A 2-3 || ?
+
| FM Radio [8] || n/a || n/a/ || <5A (5A fuse recommended)
 
|-
 
|-
−
| - [4] || Salt || 15A 2-4 || ?
+
| Bilge Pumps [9] || Bilge || 10A 4-2 || 25A
 
|-
 
|-
−
| Nav. Inst. || Nav. Inst. || 30A 2-6 || ?
+
| Fuel Pump [10] || F. Pump || 30A 3-3 || 10A (5A measured)
 
|-
 
|-
−
| Nav. Subpanel [5] || Radio Phone || 30A 3-1 || ?
+
| Engine [11] || n/a || n/a || < 15A (will power starter solenoid & engine instruments)
 +
|}
 +
 
 +
Notes:
 +
 
 +
* 1. "Red" cabin lights circuit will be merged in with white cabin lights.
 +
* 2. Orig blower broken, new blowers range between 6A and 12A
 +
* 3. How many amps needed for socket-powered devices?
 +
* 4. All nav instruments will be powered by one breaker (GPSMap541: 3A, GMI10: 1A, NMEA buss: < 1A)
 +
* 5. Compass light circuit will be combined with lights for instrument panel
 +
* 6. Anchor light could not be turned on with original wiring
 +
* 7. Horn not originally installed on boat.  Perhaps this could be combined with another circuit, such as Nav Inst.
 +
* 8. FM Radio is currently on the white cabin lights breaker.
 +
* 9. Both bilge pumps will be powered by an "always on" breaker on panel 4, tied directly to house batteries
 +
* 10. Fuel pump breaker will be one of the "always on" breakers on panel 4, powered by starter battery.
 +
* 11. This circuit will be on an "always on" breaker on panel 4, powered by starter battery
 +
 
 +
 
 +
== Proposed Breaker Layout ==
 +
 
 +
 
 +
=== Panel 4 ===
 +
 
 +
The three breakers on Panel 4 will always be left on.  Breaker 1 will be tied directly
 +
to the House batteries.  Breakers 2 and 3 will be powered through the Engine Starter
 +
battery switch.
 +
 
 +
{| border="1" cellspacing="0" style="margin-left: 10px"
 +
| 1 || Bilge Pumps || 25A || Tied directly to House batteries
 
|-
 
|-
−
| Propane || Stove || 5A 3-2 || ?
+
| 2 || Fuel Pump || 10A || Powers inline fuel pump under port berth (near fuel tank)
 
|-
 
|-
−
| Fuel Pump [6] || F. Pump || 30A 3-3 || ?
+
| 3 || Engine || 50A || Powers starter solenoid, Regulator circuit & Engine Instruments
 +
|}
 +
 
 +
=== Panel 1 ===
 +
 
 +
This panel is next to the voltmeter and the House battery switch.  These are the breakers
 +
that are normally turned on while sailing.
 +
 
 +
{| border="1" cellspacing="0" style="margin-left: 10px"
 +
| # || Name || Required Amps || Notes
 
|-
 
|-
−
| Footlights [7] || Footlights || 15A 3-4 || ?
+
| 1 || Nav. Lights || 10A || This switch will power the Nav Lights sub panel
 
|-
 
|-
−
| Bilge Blower || Bilge Blow || 15A 3-6 || ?
+
| 2 || Nav. Inst. || 10A || This will power the Garmin GPSMap541, the GMI10 display, and the entire NMEA2000 buss (5A required)
 +
|-
 +
| 3 || VHF Radio || 10A ||
 +
|-
 +
| 4 || Horn || 5A ||
 +
|-
 +
| 5 || Radar || 5A ||
 +
|-
 +
| 6 || Fresh Water Pump || 10A ||
 
|}
 
|}
  
 +
=== Panel 2 ===
  
−
Notes:
+
This panel is above the voltmeter.  These are the breakers
 +
that are not normally turned on while sailing, but may occasionally be turned on when necessary.
 +
 
 +
{| border="1" cellspacing="0" style="margin-left: 10px"
 +
| # || Name || Required Amps || Notes
 +
|-
 +
| 1 || Cabin Lights || 30A || All currently installed lights draw about 19A total
 +
|-
 +
| 2 || Footlights || 15A ||
 +
|-
 +
| 3 || Propane || 5A ||
 +
|-
 +
| 4 || Fridge || 15A ||
 +
|-
 +
| 5 || Blower || 15A || Not currently installed
 +
|-
 +
| 6 || Aux Sockets || 10A || This will power the 12v cigarette lighter sockets
 +
|}
 +
 
 +
=== Other Circuits ===
 +
 
 +
These are circuits that may need to be added later
 +
 
 +
{| border="1" cellspacing="0" style="margin-left: 10px"
 +
| # || Name || Required Amps || Notes
 +
|-
 +
| 1 || FM Radio || 5A || Currently on the Cabin Lights circuit
 +
|-
 +
| 2 || Auto Pilot || 10A || Not currently connected
 +
|}
 +
 
 +
=== Nav Lights Sub Panel ===
 +
 
 +
All these circuits together draw less than 10A.  It makes sense to use one
 +
breaker for all of them, but have separate switches for each item. 
 +
 
 +
These are all items that may need to be turned on at sunset. Placing
 +
these switches near the companionway would make it easier and safer to turn
 +
them on at sunset without having to descend into the cabin.  Alternatively,
 +
these switches could be put in the cockpit somewhere in a waterproof panel.
 +
 
 +
{| border="1" cellspacing="0" style="margin-left: 10px"
 +
| # || Name || Required Amps || Notes
 +
|-
 +
| 1 || Nav Lights || 3A || 3x 1A bulbs [#1004 bulbs]
 +
|-
 +
| 2 || Steaming Light || 0.4A ||
 +
|-
 +
| 3 || Tri-Color || 2A || 25W bulb
 +
|-
 +
| 4 || Anchor || 1A || 10W bulb
 +
|-
 +
| 5 || Foredeck || 1.7A ||
 +
|-
 +
| 6 || Instrument Lights || 1A || tach: 0.27A [194 bulb]; temp: 0.12A [53 bulb]; oil: 0.12A; compass: 0.04A [LEDs]
 +
|}
 +
 
 +
== Cabin Lights ==
 +
 
 +
This information is meant to inventory the current complement of cabin lights.
 +
 
 +
=== Types of Cabin Lights ===
 +
 
 +
* Red/White circular ceiling lamps. These have a SPDT switch (ON-OFF-ON) to switch between white and red mode.  In white mode, two 6W festoon lamps are lit.  In red mode, one 6W red festoon lamp is lit.  Max current: 1A.
 +
 
 +
* Black swivel lamp. These have one 5W bulb each. Current: 0.5A
 +
 
 +
* Square panel lamp. These are 6" x 6" square panels and use an automotive type 1141 bulb. Current 1.6A
 +
 
 +
* Gold reading lamp. These use a 10W bi-pin bulb. Current: 0.9A
 +
 
 +
* Red/White flourescent lamp. Uses SPDT switch (ON-OFF-ON) to turn on one 8W flourescent bulb at a time.  Maximum current: 0.7A
 +
 
 +
* Circular LED ceiling lamps.  These have an array of white LEDs.  Amperage is yet to be determined, but is probably less than 0.1A.
 +
 
 +
* Circular white ceiling lamp.  This lamp above the sink has the same housing as the LED lamps, but it contains two 10W bi-pin bulbs.  The SPDT switch (ON-OFF-ON) can turn on either one or both bulbs.  Perhaps this lamp should be rewired for red operation.
 +
 
 +
=== List of Cabin Light Fixtures ===
 +
 
 +
* Forward Cabin: two square panel lamps facing forward on forward side of bulkhead (2 x 1.6A)
 +
 
 +
* Forward Cabin: two gold reading lamps at aft end of cabin above berths (2 x 0.9A)
 +
 
 +
* Head: R/W circular (1)
 +
 
 +
* Forward locker, starboard side: square panel lamp (1.6A)
 +
 
 +
* Next locker, starboard side: square panel lamp (1.6A)
 +
 
 +
* Main cabin: 4 R/W circular lamps (4 x 1A)
 +
 
 +
* Main cabin: 2 LED lamps (2 x 0.1A)
 +
 
 +
* Main cabin, above sink: 1 circular white lamp (1 x 2A)
 +
 
 +
* Main cabin: 6 black swivel lamps (6 x 0.5A)
 +
 
 +
* Main cabin: flourescent lamp over stove (0.7A)
 +
 
 +
=== Summary ===
  
−
* 1. Do we need a separate breaker for red lights? probably not, since many of the red lights are on the "white" circuit.
+
The total amperage of the above light fixtures is 19.1A.  As of 4/4/2012, it still needs to be determined which lights are on the white circuit and which are on the red circuit. All the lights should also be tested with a 12 volt battery to determine if all the circuits actually work. The footlights also need to be examined to determine if the circuits work and how much current they draw.
−
* 2. Do we need auxilary nav lights?  If they work, perhaps we'll keep them.
+
−
* 3. Compass light circuit might be combined with lights for instrument panel
+
−
* 4. Do we have a salt water pump? Do we need one?
+
−
* 5. The Nav station subpanel circuits might be moved to the main breaker panels.
+
−
* 6. Fuel pump breaker will be one of the "always on" breakers on panel 4.
+
−
* 7. Do we need a separate breaker for footlights?  Perhaps they should be combined with cabin lights and have dedicated switch.
+

Latest revision as of 21:04, 24 June 2012

Status: 3/23/2012

The various breaker panels near the galley sink are designated:

  • Panel 1: lower, next to the volt meter.
  • Panel 2: upper, outboard to starboard
  • Panel 3: upper, inboard of Panel 2
  • Panel AC: lower, inboard of Panel 1 (all 120v AC breakers)
  • Panel 4: very top

The breaker panel at the nav station is designated:

  • Panel N

Many of the screws, terminals, and buss bars on these breakers are extremely corroded and some of the breakers will need to be replaced. Note that the breakers on Panel 4 are of a different make and look to be in good shape.

All the breakers have been removed from panels 1, 2, 3, and AC. The breakers are made by Wood Electric Co. Inc. and are part number 112-2NN-101, where NN is the number of amps for which the breaker is rated (for example, a 15-amp breaker is part 112-215-101). Wood Electric no longer exists, but a direct replacement part is manufactured by Potter & Brumfield (Tyco Electronics). The part number is W31-X2M1G-N, where N is again the breaker amperage rating. These can be found at Allied Electronics and other electrical distributors.

The existing breakers will be cleaned and tested. Ones that do not work will be replaced.

A wiring diagram of the original wiring is here: http://sailing.mit.edu/bluewater/X-dimension breakers.pdf (upload on wiki is offline as of 5/10/2010)

Status 4/4/2012

All of the breakers from panels 1, 2, 3, and the AC panel have had their contacts cleaned and have been tested under load.

Breakers that are marked good were able to handle about 100% of their rated amperage for over a minute without getting warm, and when increased to 150% - 200% of their rating, tripped in less than 30 seconds. This corresponds to the breakers' specification.

Of the breakers mareked BAD, some of them didn't work at all (open). Some of them became very hot under load. Some of them had intermittent connectivity (these all got hot as well), and one of them actually started to smoke.

Panel A Name Status
1-1 30 Cabin Lites Good
1-2 30 Cabin Lites (red) Good
1-3 5 Spreader Lts Good
1-4 15 Mast Head Good
1-5 10 Bow Good
1-6 15 Nav Lite Main BAD
1-7 10 Auto Pilot Good
2-1 15 Nav Lite Aux Good
2-2 10 Compass Good
2-3 15 F.W. Pump Good
2-4 15 Salt Good
2-5 15 N/G Good
2-6 30 Nav. Inst. BAD (hot, trips @ 25A)
3-1 30 Radio Phone BAD (intermittent)
3-2 5 Stove Good
3-3 30 F. Pump BAD (smokes!)
3-4 15 Footlites Good
3-5 15 (blank) BAD (open)
3-6 15 Bilge Blow BAD (hot)
4-1 5 Spare  ?
4-2 10 Bilge  ?
4-3 15 Fridge  ?
AC-1 30 AC Main BAD (case damaged)
AC-2 15 Spare BAD (open)
AC-3 15 Hot Water BAD (open)
AC-4 15 Outlets 120v BAD (open)
AC-5 15 Battery Charger BAD (open)
AC-6 15 Spare Good


Status 4/20/2012

Breakers from Nav Station (Panel N) have been removed and cleaned, but not yet tested. Several of these breakers were physically damaged during the removal process due to severe corrosion.

Panel A Name Status
N-1 30 FM Radio Phone BAD (intermittent)
N-2 5 Free BAD (damaged)
N-3 15 GPS GOOD (pushbutton type)
N-4 15 Free GOOD
N-5 15 NavMan BAD (damaged)
N-6 15 Sta Light BAD (damaged)


12-volt Circuits

Here is a list of the 12-volt circuits on the boat. Where appropriate new names have been suggested. The Orig. Breaker column includes the breaker rating and the panel number and location of the original breakers.

Circuit Name Orig. Name Orig. Breaker True Amps
Cabin Lights [1] Cabin Lights 30A 1-1 20A
Footlights Footlights 15A 3-4 <15A ?
Propane Stove 5A 3-2 < 5A
Fridge Fridge 15A 4-3 <15A ?
Bilge Blower [2] Bilge Blow 15A 3-6 <15A
Aux Sockets [3] n/a n/a  ? (cigarette lighter sockets)
Auto Pilot Auto Pilot 10A 1-7  ? (not connected)
Fresh Water Pump F.W. Pump 15A 2-3 10A
Radar Radar 30A 2-6 5A
VHF Radio FM Radio Phone 30A N-1 4.9A (6A fuse recommended)
Nav Inst. [4] GPS & NavMan 15A N-3 & 15A N-5 5A
Foredeck Light Spreader Lts 5A 1-3 1.7A (20W bulb)
Tri-Color Mast Head 15A 1-4 2A (25W bulb)
Steaming Light Bow 10A 1-5 0.4A (5W bulb)
Nav Lights Nav Lite Main 15A 1-6 3A (3 x 12W bulbs)
Inst. Lights[5] Compass 10A 2-2 0.04A
Anchor Light [6] n/a n/a 0.8A (10W bulb)
Horn [7] n/a n/a 3A
FM Radio [8] n/a n/a/ <5A (5A fuse recommended)
Bilge Pumps [9] Bilge 10A 4-2 25A
Fuel Pump [10] F. Pump 30A 3-3 10A (5A measured)
Engine [11] n/a n/a < 15A (will power starter solenoid & engine instruments)

Notes:

  • 1. "Red" cabin lights circuit will be merged in with white cabin lights.
  • 2. Orig blower broken, new blowers range between 6A and 12A
  • 3. How many amps needed for socket-powered devices?
  • 4. All nav instruments will be powered by one breaker (GPSMap541: 3A, GMI10: 1A, NMEA buss: < 1A)
  • 5. Compass light circuit will be combined with lights for instrument panel
  • 6. Anchor light could not be turned on with original wiring
  • 7. Horn not originally installed on boat. Perhaps this could be combined with another circuit, such as Nav Inst.
  • 8. FM Radio is currently on the white cabin lights breaker.
  • 9. Both bilge pumps will be powered by an "always on" breaker on panel 4, tied directly to house batteries
  • 10. Fuel pump breaker will be one of the "always on" breakers on panel 4, powered by starter battery.
  • 11. This circuit will be on an "always on" breaker on panel 4, powered by starter battery


Proposed Breaker Layout

Panel 4

The three breakers on Panel 4 will always be left on. Breaker 1 will be tied directly to the House batteries. Breakers 2 and 3 will be powered through the Engine Starter battery switch.

1 Bilge Pumps 25A Tied directly to House batteries
2 Fuel Pump 10A Powers inline fuel pump under port berth (near fuel tank)
3 Engine 50A Powers starter solenoid, Regulator circuit & Engine Instruments

Panel 1

This panel is next to the voltmeter and the House battery switch. These are the breakers that are normally turned on while sailing.

# Name Required Amps Notes
1 Nav. Lights 10A This switch will power the Nav Lights sub panel
2 Nav. Inst. 10A This will power the Garmin GPSMap541, the GMI10 display, and the entire NMEA2000 buss (5A required)
3 VHF Radio 10A
4 Horn 5A
5 Radar 5A
6 Fresh Water Pump 10A

Panel 2

This panel is above the voltmeter. These are the breakers that are not normally turned on while sailing, but may occasionally be turned on when necessary.

# Name Required Amps Notes
1 Cabin Lights 30A All currently installed lights draw about 19A total
2 Footlights 15A
3 Propane 5A
4 Fridge 15A
5 Blower 15A Not currently installed
6 Aux Sockets 10A This will power the 12v cigarette lighter sockets

Other Circuits

These are circuits that may need to be added later

# Name Required Amps Notes
1 FM Radio 5A Currently on the Cabin Lights circuit
2 Auto Pilot 10A Not currently connected

Nav Lights Sub Panel

All these circuits together draw less than 10A. It makes sense to use one breaker for all of them, but have separate switches for each item.

These are all items that may need to be turned on at sunset. Placing these switches near the companionway would make it easier and safer to turn them on at sunset without having to descend into the cabin. Alternatively, these switches could be put in the cockpit somewhere in a waterproof panel.

# Name Required Amps Notes
1 Nav Lights 3A 3x 1A bulbs [#1004 bulbs]
2 Steaming Light 0.4A
3 Tri-Color 2A 25W bulb
4 Anchor 1A 10W bulb
5 Foredeck 1.7A
6 Instrument Lights 1A tach: 0.27A [194 bulb]; temp: 0.12A [53 bulb]; oil: 0.12A; compass: 0.04A [LEDs]

Cabin Lights

This information is meant to inventory the current complement of cabin lights.

Types of Cabin Lights

  • Red/White circular ceiling lamps. These have a SPDT switch (ON-OFF-ON) to switch between white and red mode. In white mode, two 6W festoon lamps are lit. In red mode, one 6W red festoon lamp is lit. Max current: 1A.
  • Black swivel lamp. These have one 5W bulb each. Current: 0.5A
  • Square panel lamp. These are 6" x 6" square panels and use an automotive type 1141 bulb. Current 1.6A
  • Gold reading lamp. These use a 10W bi-pin bulb. Current: 0.9A
  • Red/White flourescent lamp. Uses SPDT switch (ON-OFF-ON) to turn on one 8W flourescent bulb at a time. Maximum current: 0.7A
  • Circular LED ceiling lamps. These have an array of white LEDs. Amperage is yet to be determined, but is probably less than 0.1A.
  • Circular white ceiling lamp. This lamp above the sink has the same housing as the LED lamps, but it contains two 10W bi-pin bulbs. The SPDT switch (ON-OFF-ON) can turn on either one or both bulbs. Perhaps this lamp should be rewired for red operation.

List of Cabin Light Fixtures

  • Forward Cabin: two square panel lamps facing forward on forward side of bulkhead (2 x 1.6A)
  • Forward Cabin: two gold reading lamps at aft end of cabin above berths (2 x 0.9A)
  • Head: R/W circular (1)
  • Forward locker, starboard side: square panel lamp (1.6A)
  • Next locker, starboard side: square panel lamp (1.6A)
  • Main cabin: 4 R/W circular lamps (4 x 1A)
  • Main cabin: 2 LED lamps (2 x 0.1A)
  • Main cabin, above sink: 1 circular white lamp (1 x 2A)
  • Main cabin: 6 black swivel lamps (6 x 0.5A)
  • Main cabin: flourescent lamp over stove (0.7A)

Summary

The total amperage of the above light fixtures is 19.1A. As of 4/4/2012, it still needs to be determined which lights are on the white circuit and which are on the red circuit. All the lights should also be tested with a 12 volt battery to determine if all the circuits actually work. The footlights also need to be examined to determine if the circuits work and how much current they draw.

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