NEC - 334.10 list what you can (legally) use it for. That is it.
I would read the wire manual you showed me it states do not use ac wire for d c wire . Do not use thick stranded either? Come on smoothjoey only use on ac side solid or thick stranded . Would it work yes for a while .is it safe ?no !
8 & 6 AWG wire is THICK stranded for AC Power.
Yes... the reason is flexibility to permit easy welding.
Thick stranded lots over voltage drop
I don't understand why thick stranded would be an issue for DC. Busbars aren't stranded.
And this has nothing to do with DC at all..."At high frequencies, current travels near the surface of the wire because of the skin effect, resulting in increased power loss in the wire. Stranded wire might seem to reduce this effect, since the total surface area of the strands is greater than the surface area of the equivalent solid wire, but ordinary stranded wire does not reduce the skin effect because all the strands are short-circuited together and behave as a single conductor. A stranded wire will have higher resistance than a solid wire of the same diameter because the cross-section of the stranded wire is not all copper; there are unavoidable gaps between the strands (this is the circle packing problem for circles within a circle). A stranded wire with the same cross-section of conductor as a solid wire is said to have the same equivalent gauge and is always a larger diameter.
However, for many high-frequency applications, proximity effect is more severe than skin effect, and in some limited cases, simple stranded wire can reduce proximity effect. For better performance at high frequencies, litz wire, which has the individual strands insulated and twisted in special patterns, may be used."
Wire - Wikipedia
en.wikipedia.org
I would like to see any evidence you have for this.
Which is why stranded has a larger diameter than solid same gauge...
Theres thick stranded and thin. Thin is for dc wireing and thick is for ac wiring. The current travel's around a wire not in it less strands less power more strands more flow on opposite end ? It can be done your way but is it smart to do . I say no and I'm not a great person to ask I just know from experience amp and flow is what going to change for you .
Solid copper DC busbars
Cut open an AC extension cord. I bet you find thin stranded wire in there.
With AC power at very high frequency, yes. DC has zero concerns for strands, vs solid. All dc cares about is cross sectional area, and conductive continuity.
