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Check My Wiring Diagram...Please, I Really Need Help

ManKzin

New Member
Joined
Oct 21, 2024
Messages
83
Location
Foirida
Please Check my work.

i need someone to tell me what Ground Wire size to use for both the Inverter side and PV side. To add I have all the systems grounding going to one 8' Grounding Rod, which will be at least 10' away from my house ground wire OIR can i place my ground rod a little over 2' away from the house's? Read or saw a video where some one said that, though i thought it had to be at least 6' away,

Part list is after my wiring diagram.
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PARTS LIST​

* KEWIG 12V USB Outlet Quick Charge 3.0 USB Charger Socket & Dual PD Type - C Ports, USB Cigartte Lighter Socket with ON/Off Switch DIY Kit, Waterproof Car Charger for Car Boat Marine RV ATV,Golf Amazon.com: KEWIG 12V USB Outlet Quick Charge 3.0 USB Charger Socket & Dual PD Type - C Ports, USB Cigartte Lighter Socket with ON/Off Switch DIY Kit, Waterproof Car Charger for Car Boat Marine RV ATV,Golf : Automotive

* KEWIG 12V Cigarette Lighter Socket with Blue LED, Waterproof Cigarette Lighter Socket Replacement DIY Kit for Car Boat Marine Motorcycle ATV RV Truck Golf Cart and More, 2 Pack Amazon.com: KEWIG 12V Cigarette Lighter Socket with Blue LED, Waterproof Cigarette Lighter Socket Replacement DIY Kit for Car Boat Marine Motorcycle ATV RV Truck Golf Cart and More, 2 Pack : Automotive

* 3 Ports 18W USB Car Charger with Switch, 12-24V Dual QC 3.0 USB & PD USB C Cigarette Lighter Socket Outlet, Dashboard Mount Quick Charge Charger for Car Motorcycle Truck Marine Boat,Blue Light Amazon.com: Kework 3 Ports 18W USB Car Charger with Switch, 12-24V Dual QC 3.0 USB & PD USB C Cigarette Lighter Socket Outlet, Dashboard Mount Quick Charge Charger for Car Motorcycle Truck Marine Boat,Blue Light : Cell Phones & Accessories

* 12V 24V RV Led Lights Interior Camper Puck Lights Dimmable,4 Colors 2700K Warm, 4000K Neutral, 6000K Cool White,12 Volt RV Ceiling Dome Panel Lights Surface Mount for Car/RV/Trailer/Camper/Boat(2Pack) Amazon.com: 12V 24V RV Led Lights Interior Camper Puck Lights Dimmable,4 Colors 2700K Warm, 4000K Neutral, 6000K Cool White,12 Volt RV Ceiling Dome Panel Lights Surface Mount for Car/RV/Trailer/Camper/Boat(2Pack) : Automotive

* 12V USB Charger Panel Plastic Housing 1 PCS 2 Hole for USB Socket, DAMAVO Multiple Function Car DIY Accessories Boat ATV RV Marine 12V Socket Power Outlet for Cigarette Lighter Power Socket Amazon.com: 12V USB Charger Panel Plastic Housing 1 PCS 2 Hole for USB Socket, DAMAVO Multiple Function Car DIY Accessories Boat ATV RV Marine 12V Socket Power Outlet for Cigarette Lighter Power Socket : Electronics

* Strong Quiet 12025 Fan 120x120x25mm 12cm 120mm Computer Case Fan DC 12V Cooling Fan for Computer case 2Pin 2 Wire 1600RPM 2-Pack Amazon.com: Strong Quiet 12025 Fan 120x120x25mm 12cm 120mm Computer Case n DC 12V Cooling Fan for Computer case 2Pin 2 Wire 1600RPM 2-Pack : Electronics

* 1/0 Gauge 1/0 AWG 10 Feet Black + 10 Feet Red Welding Battery Pure Copper Flexible Cable Wire - Car, Inverter, RV, Solar Amazon.com: 1/0 Gauge 1/0 AWG 10 Feet Black + 10 Feet Red Welding Battery Pure Copper Flexible Cable Wire - Car, Inverter, RV, Solar : Tools & Home Improvement

* Blue Sea Systems 6 Circuit Blade Fuse Block With Negative Bus 100 Amp Max Per Block 30 Per Circuit Amazon.com: Blue Sea Systems 6 Circuit Blade Fuse Block With Negative Bus 100 Amp Max Per Block 30 Per Circuit : Automotive

* 8FT Ground Rod Kit 5/8'' Bonded Copper Grounding Rod with Bronze Clamp for Electronic Fence, Lightning Protection, Electrode Earthing, Radio. 8FT Ground Rod Kit 5/8'' Bonded Copper Grounding Rod with Bronze Clamp for Electronic Fence, Lightning Protection, Electrode Earthing, Radio Equipment Grounding, Antennas, Satellite Dishes - Amazon.com

* DAIERTEK 600A Power Distribution Block 12V Bus Bar Terminal Block 6 x 3/8" Terminal Studs 12 Volt Marine Bus Bar with Cover Positive & Negative for Automotive Car Boat Solar System Amazon.com: DAIERTEK 600A Power Distribution Block 12V Bus Bar Terminal Block 6 x 3/8" Terminal Studs 12 Volt Marine Bus Bar with Cover Positive & Negative for Automotive Car Boat Solar System : Electronics

* LiTime 60-Amp Lithium Battery Charger 12V LiFePO4 Battery Charger AC-DC Smart Charger with Cooling Fan,Anderson Connector LED for 14.6V LiFePO4 Lithium Batteries, 60A Fast Charging Amazon.com: LiTime 60-Amp Lithium Battery Charger 12V LiFePO4 Battery Charger AC-DC Smart Charger with Cooling Fan,Anderson Connector LED for 14.6V LiFePO4 Lithium Batteries, 60A Fast Charging : Automotive

* Inverter Pre-Charge Assembly Inverter Pre-Charge Assembly - Off-Grid Power Systems

* LiTime 3000W Pure Sine Wave Inverter 12V DC to 120V AC Converter with Remote Control and LCD Display, 4 AC Outlets, 2 USB Outputs, Surge 6000W for RV, Camping, Off-Grid Solar Power Inverter Amazon.com: LiTime 3000W Pure Sine Wave Inverter 12V DC to 120V AC Converter with Remote Control and LCD Display, 4 AC Outlets, 2 USB Outputs, Surge 6000W for RV, Camping, Off-Grid Solar Power Inverter : Patio, Lawn & Garden

Plan To Buy

* Nilight 600A High Current Battery Switch 12V 24V 48V ON Off Heavy Duty Battery Power Cut Master Switch Disconnect Isolator for Truck Vehicle Trailer RV Marine Boat Yacht Amazon.com: Nilight 600A High Current Battery Switch 12V 24V 48V ON Off Heavy Duty Battery Power Cut Master Switch Disconnect Isolator for Truck Vehicle Trailer RV Marine Boat Yacht : Automotive

* 400A 48V Bus Bar 400A Power Distribution Block 8 x 5/16" (M8) Studs Automotive Marine Battery Busbar Terminal Block with Cover - Negative&Positive Amazon.com: T Tocas 400A 48V Bus Bar 400A Power Distribution Block 8 x 5/16" (M8) Studs Automotive Marine Battery Busbar Terminal Block with Cover - Negative&Positive : Electronics

* Joinfworld Heavy Duty 500A Bus Bar Waterproof Power Distribution Block with 4*5/16"(M8)+2*3/8"(M10) Studs 48V DC Automotive Marine Battery Terminal Distribution Block with Cover - Negative&Positive Amazon.com: Joinfworld Heavy Duty 500A Bus Bar Waterproof Power Distribution Block with 4*5/16"(M8)+2*3/8"(M10) Studs 48V DC Automotive Marine Battery Terminal Distribution Block with Cover - Negative&Positive : Electronics

* Class T Fuse with Block, 250V DC, Class T Fuse Holder with 400Amp Fuse for Inverters,Car Audio Systems(Pack of 1) VOZINMOST Class T Fuse with Block, 250V DC, Class T Fuse Holder with 400Amp Fuse for Inverters,Car Audio Systems(Pack of 1): Amazon.com: Tools & Home Improvement

* WindyNation 4/0 Gauge AWG (8 Feet Black + 8 Feet Red) Power Inverter Battery Cable Wire Kit for DC to AC Inverters RV, Car, Solar, Marine, Off-Grid Amazon.com: WindyNation 4/0 Gauge AWG (8 Feet Black + 8 Feet Red) Power Inverter Battery Cable Wire Kit for DC to AC Inverters RV, Car, Solar, Marine, Off-Grid : Automotive

* Class T Fuse with Block, 250V DC, Class T Fuse Holder with 100 Amp Fuse for Inverters,Car Audio Systems(Pack of 1) Class T Fuse with Block, 250V DC, Class T Fuse Holder with 100 Amp Fuse for Inverters,Car Audio Systems(Pack of 1): Amazon.com: Tools & Home Improvement

* HQST 80 Amp MPPT Solar Charge Controller, 12V/24V/36V/48V Negative Grounding Controller, w/ Smart Bluetooth APP Control, Low-Temp Cut-Off, LCD Display, for Lithium, Sealed, AGM, GEL, Flooded Batteries Amazon.com: HQST 80 Amp MPPT Solar Charge Controller, 12V/24V/36V/48V Negative Grounding Controller, w/ Smart Bluetooth APP Control, Low-Temp Cut-Off, LCD Display, for Lithium, Sealed, AGM, GEL, Flooded Batteries : Patio, Lawn & Garden

* Solar Panels Disconnect Switch 63Amp DC Solar Shut Off Switch 400V 2 Poles Outdoor AC Small Miniature Circuit Breaker Box, IP65 Waterproof UV-Proof for Solar PV Homes MINGSONG Solar Panels Disconnect Switch 63Amp DC Solar Shut Off Switch 400V 2 Poles Outdoor AC Small Miniature Circuit Breaker Box, IP65 Waterproof UV-Proof for Solar PV Homes: Amazon.com: Tools & Home Improvement

* PV Combiner Box 4 String, IP65 Waterproof Solar Combiner Box with Lightning Arreste, Metal Box, 20A Rated Current Fuse and Circuit Breakers for On/Off Grid Solar Panel System (4 String) Amazon.com: Elnuimex PV Combiner Box 4 String, IP65 Waterproof Solar Combiner Box with Lightning Arreste, Metal Box, 20A Rated Current Fuse and Circuit Breakers for On/Off Grid Solar Panel System (4 String) : Patio, Lawn & Garden

* Solarever 450W Bifacial Solar Panel | Up to 562W in Bifacial Gain | SE-182-105-450M-96-BD Solarever 450W Bifacial Solar Panel | Up to 562W in Bifacial Gain | SE-182-105-450M-96-BD - Signature Solar

Please Recommend Grounding Wire Size and Where to Purchase



 
Wire - windy nation
The class T fuse block is inadequate- that style class T is 2ka to 3ka good for lead acid not lfp.

Use these instead - expensive but you should never need to replace it if sized right

For the main battery disconnect you should really use something like this - the small switches will get hot when running full current for the inverter through it.

I'll look at the rest tomorrow when at a real computer verse the tablet and give you wire sizes... but try for yourself

Take the current you expect to see in a given wire... multiply that current by 1.25 then look it up in the table on this page - click the table below the picture to expand it. Your wire lengths should be short enough not to worry about voltage drop. That tells you size.


If you are doing this in a boat the tinned pure copper wire is better.
 
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grounding for lightning strikes and grounding for shorts are two different things. read up on code. when grounding for shorts, ground wire only needs to be able to carry enough current for the time it takes to trip an ocp device, so is typically allowed to be one size smaller than the current carrying conductors in that circuit.
 
Swap your PV fuse box and disconnect switch. That way if you need to replace or test the fuses you can turn off the power to the fuse block and not have to deal with PV voltage on the fuse terminals

Might be worth moving the lithium charger down to the battery's 600a buss bar. That way you can turn off the power to the inverter and DC loads but still charge your batteries if they run low. Maybe even the SCC too. Or have one disconnect for the charging sources and another for loads. That way you can turn off the loads if your bank gets low but still allow the bank to charge back up

When wiring the batteries in parallel, make sure to wire them first in last out or sometimes called reverse return. This will balance the current from each battery even if you don't have the same wire lengths to each battery

I didn't read through all of your post. Just briefly looked at the diagram
 
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