electrical - Pair of 12/3 wires in outlet box showing neutral-ground voltage - Home Improvement Stack Exchange
How to Wire a 12/3 Romex Cable | ehow
electrical - 12/3 cable coming from box, is this correct? - Home Improvement Stack Exchange
Electrical 600volts 14/2 12/3 12/2 Gauge with Ground Yellow 63 Copper Wire Nm-B Cable 1000 FT Non Metallic Sheathed - China Building Electric Wire, House Electric Wire | Made-in-China.com
Southwire 50-ft 12/3 Romex SIMpull Solid Indoor Non-Metallic Wire (By-the-roll) in the Non-Metallic Wire department at Lowes.com
has anyone seen the red in 12/3 used as a ground? not me until today : r/electricians