yes it certainly could help: some PLC makers (Chang Lightspeed for one) offer optional-upgrade heavier-gauge AC input cords on their conditioners. Theirs are hardwired & so must be ordered accordingly, or else sent back in for the upgrade. Other PLC's such as VansEvers have an IEC so you can install a cord of your own. I'm not sure about having an upgrade cord on the PLC's input & then more upgrade cords on the AC outputs to your components. You'd need to experiment to find the right combination, & the optimum cords likely wouldn't necessarily all be the same although they *might* be.
Using a single upgrade cord at the PLC input does not mean that you can get away with only stock cords on the outputs though, if that's what you're proposing.
Using a single upgrade cord at the PLC input does not mean that you can get away with only stock cords on the outputs though, if that's what you're proposing.