I'm in the UK so our codes/rules may well be different, but I'm pretty sure its unwise to run lighting on the same circuit as power sockets. I've remodeled multiple houses and (over here, so, as I say maybe different rules) we have separate feeds for lighting, power sockets, then others for high draw feeds like kitchen appliances. I've always specified multiple separate 30amp feeds for my studio and again for the garage where I need high draw feeds for tig and mig welders.
Each circuit group (lighting, wall outlets, specific outlets) then has its own matched RCD.
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