CRV HIB1 Electrical system Flashcards
(20 cards)
How many batteries are there on HIB1?
4
Where are the start batteries located?
Rear locker; one port, one starboard.
Where are the house batteries located?
One under Nav station seat, one under Helm station seat.
What do the house batteries do?
Run everything (electrical) on the boat except the engines.
What type of battery are the start batteries?
Sealed lead acid 720 CCA (cold cranked amps).
What type of battery are the house batteries?
AGM (Absorbent glass mat) 120 Ah (Total: 240 Ah)
How are the house batteries set up? What does this mean? Who, apart from Raymond, cares about this :-) ?
In parallel (as opposed to in series). The negative of the first battery is connected to the negative of the second battery. This means that the capacity (in amp per hour) is doubled while maintaining the voltage of the original battery.
Where are the isolating switches for the start batteries located?
Both in starboard rear locker. (Trick question: despite the batteries being located either side of the boat, BOTH isolating switches are located together in the starboard locker.)
When would you switch off the individual isolating switches?
In an emergency only, or failure situation. If the isolators are manually turned off, they must be turned back on in order for the key-switch (on the switchboard) to work.
Where are the fuses/circuit breakers located?
In the front cabin, port side, in front of the Nav station.
How do you isolate any of the electrical systems on the boat?
By switching off the relevant circuit breakers. Some circuit breakers have a ‘lock’ that prevents them from being accidentally turned off.
How long can the house batteries last, assuming everything is running?
6-7hours.
Where are the battery chargers located?
Start battery: under the Nav station seat.
House battery: under the Helm station seat.
What is the startup and shutdown procedure
Startup: Turn on key-switch on switchboard to turn on all electrical systems, except bilge pump.
Shutdown: Ensure red floor lights are turned on at Nav station, then turn key-switch off.
Where are auxiliary power sockets located on the boat?
Two sockets to plug in spotlights are located above the rear seats.
One socket + 12v lighter-type outlet is located beside the switchboard (front cabin, port side, ‘in front of’ the Nav station).
Is there a multi-function mater on HIB1?
Yes. In the centre of the switchboard (?)
How would you identify a fault/diagnose a loss of power?
Look for tripped circuit breakers.
Reset circuit breaker.
If circuit breaker trips again, DO NOT RESET. Instead, advise maintenance officer.
In case of fire, how would you isolate it?
- Fire in Nav unit or switchboard:
If possible, turn off isolator under Nav station seat. This removes source of energy to fire while allowing engines to remain running, and turn stern into wind. - Engine fire:
Switch off circuit breaker to that engine on switchboard.
In case of fire, how would you isolate it?
- Fire in Nav unit or switchboard:
If possible, turn off isolator under Nav station seat. This removes source of energy to fire while allowing engines to remain running, and turn stern into wind. - Engine fire:
Switch off circuit breaker to that engine on switchboard.
What is the SOP for an electrical fire?
- (Anyone)
Shout FIRE, FIRE, FIRE and location of fire - (Nav)
Turn off battery isolator under Nav station seat
Grab handheld VHF
Make distress call on CH 16 if appropriate
3.(Helm)
Turn stern into wind
4.( Starboard crew)
Open front hatch, if possible
5.(Port crew)
Grab fire extinguisher
Discharge fire extinguisher through relevant companionway fire access port
