Can I use a 20-amp GFCI in place of a 15-amp GFCI (it is connected to a 15 amp breaker in the panel box via 14 gauge white romex wire)? - Quora
Is there an explanation why the RED WIRE on this 14 Gauge wire to a dimmer is connected to its own 15 amp Circuit Breaker (subpanel)? | DIY Home Improvement Forum
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Color code for residential wire/ how to match wire size and ... | Electrical wiring, House wiring, Home electrical wiring
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