Got it. Thank you to ALL! On Sat, May 30, 2020, 8:52 AM Josh Muckley via CnC-List < cnc-list@cnc-list.com> wrote:
> Negative battery goes to the ground buss too. ONE wire from the ground > buss to the engine. > > Josh Muckley > S /V Sea Hawk > 1989 C&C 37+ > Solomons, MD > > > > On Sat, May 30, 2020, 08:12 Brian Davis via CnC-List < > cnc-list@cnc-list.com> wrote: > >> Gotcha. I sent you my diagram. Just want to make sure I'm clear. So the >> Grounding bus and the Negative battery both connect to the same engine bolt? >> >> On Sat, May 30, 2020 at 8:10 AM Joe Della Barba via CnC-List < >> cnc-list@cnc-list.com> wrote: >> >>> You do run a wire to the engine, usually 2 gauge, but only one. Many >>> boats ends up using the engine block as a ground bus with wires hooked up >>> all over it. >>> >>> Joe >>> On 5/30/2020 8:01 AM, Brian Davis via CnC-List wrote: >>> >>> Thanks, Joe! >>> >>> I did get a galvanic isolatot, but forgot to say that. The Blue Sea bus >>> link you sent is exactly what i have. But what does that connect to? If not >>> the engine then where? >>> >>> Brian >>> >>> On Sat, May 30, 2020, 7:53 AM Joe Della Barba via CnC-List < >>> cnc-list@cnc-list.com> wrote: >>> >>>> Don't use the engine for ship's ground. Use one of these: >>>> >>>> >>>> https://www.bluesea.com/products/2127/MaxiBus_250A_BusBar_-_Four_5_16in-18_Studs >>>> >>>> Your AC ground bus will connect to that ground point as well. Speaking >>>> of AC, make sure you have a galvanic isolator. >>>> >>>> Run ONE ground wire to the engine. You don't want your engine block to >>>> be a routine conductor of electricity. >>>> >>>> Here is your lightning ground conundrum: The old way was to connect all >>>> metal together. Coquina came with a ground wire system that connected every >>>> single thru-hull, the mast step, the engine and the keel. The problem with >>>> that is if the zinc does not work perfectly, you can have electrolysis on a >>>> large scale since you have all this metal wired together. I undid all that, >>>> no thru-hulls are wired to anything. The mast is wired to a keel bolt with >>>> 4 gauge wire. The ship's ground bus is wired to the engine with one ground >>>> wire. >>>> >>>> >>>> Joe Coquina >>>> On 5/30/2020 7:32 AM, Brian Davis via CnC-List wrote: >>>> >>>> Hello everyone, >>>> >>>> Hope you quarantine projects are going well. >>>> >>>> I have a question about grounding. I'm currently refitting ALL wiring >>>> from scratch on our 1980 Landfall 38. I literally gutted every piece of >>>> wire and bought all new Ancor tinned marine cables in every guage you can >>>> imagine. She's coming along swimmingly, and I've mapped everything out >>>> pretty well in a 8 page layered diagram that I'm happy to email direct to >>>> anyone who wants it. It's in PowerPoint and about 8mg. >>>> >>>> My question about Grounding is if it's ok to use my engine as the >>>> grounding point? I'm using the similar area for the Negative connection for >>>> the 3 battery banks, but a different bolt to the engine case. Several >>>> appliances including the breaker panels, ACR, battery charger, water >>>> heater, fuel tank, etc require a ground and I'm using a 6 awg green wire >>>> from the engine to a large Blue Sea busbar. Then connected the grounds to >>>> it. >>>> >>>> I've also run a 2awg wire from the mast step to the keel bolt and to >>>> one of the stanchion bases from underneath for lightning protection. >>>> However I kept that all separated and not connected to the grounding. >>>> >>>> Make sense? Or am I missing something? Again, happy to send my diagram >>>> for review. >>>> >>>> Regards, >>>> Brian >>>> South FL >>>> >>>> _______________________________________________ >>>> >>>> Thanks everyone for supporting this list with your contributions. Each >>>> and every one is greatly appreciated. If you want to support the list - >>>> use PayPal to send contribution -- https://www.paypal.me/stumurray >>>> >>>> _______________________________________________ >>>> >>>> Thanks everyone for supporting this list with your contributions. Each >>>> and every one is greatly appreciated. If you want to support the list - >>>> use PayPal to send contribution -- https://www.paypal.me/stumurray >>>> >>>> >>> _______________________________________________ >>> >>> Thanks everyone for supporting this list with your contributions. Each and >>> every one is greatly appreciated. If you want to support the list - use >>> PayPal to send contribution -- https://www.paypal.me/stumurray >>> >>> _______________________________________________ >>> >>> Thanks everyone for supporting this list with your contributions. Each >>> and every one is greatly appreciated. If you want to support the list - >>> use PayPal to send contribution -- https://www.paypal.me/stumurray >>> >>> >> >> -- >> Brian Davis >> 1980 C&C Landfall 38 >> "Nina" >> Southeast Florida >> _______________________________________________ >> >> Thanks everyone for supporting this list with your contributions. Each >> and every one is greatly appreciated. If you want to support the list - >> use PayPal to send contribution -- https://www.paypal.me/stumurray >> >> _______________________________________________ > > Thanks everyone for supporting this list with your contributions. Each > and every one is greatly appreciated. If you want to support the list - > use PayPal to send contribution -- https://www.paypal.me/stumurray > >
_______________________________________________ Thanks everyone for supporting this list with your contributions. Each and every one is greatly appreciated. If you want to support the list - use PayPal to send contribution -- https://www.paypal.me/stumurray
