Wiring power and Ground quick Questions

[soundnoob 10+ year member]

Iv got a quick noob question about wiring does the ground wire have to be the same size as the power wire? my runs will only be about 6ft and i was looking at 6ft of 1 gauge power wire and then 4 gauge for the ground would that affect anything? also if i was to use OFC for the power and CCA for ground would that have any effect?

the set up it self is going to be a ed nine.5 and a 1500w inverter so the 1 gauge ofc up to a distro block with 150a fuse, then to 4 gauge to amp/inverter. Then the 4 gauge up to a ground distro to amp/inverter

that sound like it will work? or should i use 1 gauge ofc for both power and ground up to the distro's?

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[soundnoob 10+ year member]

or would a 4 guage power wire be fine to run the inverter and nine.5? i tried finding the nine.5 max watts but couldn't find it

 

[bubbagumper6 5,000+ posts]

Use the same wire for both power and ground, same size and same metallic content (OFC or CCA).

 

[keep_hope_alive Premium Member]

Test question for CA.com

Since current is defined as charge flow, which direction is current (charge flow) in a DC electrical system?

A. Positive to Negative

B. Negative to Positive

C. Neither, it is alternating

D. Not Sure

 

[bubbagumper6 5,000+ posts]

Electrons move from negative to positive but current flows from positive to negative...Do I win?

 

[keep_hope_alive Premium Member]

1 awg to the distribution block for ground is recommended if your fuse is 150A.