What type of cable powers a transformer?

What type of cable powers a transformer?

• A. 12 AWG Two-Conductor Red and Black
• B. 10 AWG Black and White Twist
• C. 14 AWG Shielded Coax
• D. 8 AWG Three-Conductor

Answer: (B)

Transformers are powered by a simple two-conductor AC lead that carries line and neutral. The two conductors are typically colored black (hot) and white (neutral) in North American practice, and keeping them as a twisted pair helps make a compact, reliable lead. The gauge is chosen based on the current the transformer draws, so 10 AWG is used here to provide ample current capacity without overheating. Shielded coax is reserved for signal paths, not power, and a three-conductor cable would introduce a safety ground that isn’t required for a basic transformer primary. A smaller gauge like 14 AWG would risk overheating, while 8 AWG is unnecessarily heavy for most transformer inputs. So the black-and-white two-conductor cord in 10 AWG best fits powering a transformer.

Transformers are powered by a simple two-conductor AC lead that carries line and neutral. The two conductors are typically colored black (hot) and white (neutral) in North American practice, and keeping them as a twisted pair helps make a compact, reliable lead. The gauge is chosen based on the current the transformer draws, so 10 AWG is used here to provide ample current capacity without overheating. Shielded coax is reserved for signal paths, not power, and a three-conductor cable would introduce a safety ground that isn’t required for a basic transformer primary. A smaller gauge like 14 AWG would risk overheating, while 8 AWG is unnecessarily heavy for most transformer inputs. So the black-and-white two-conductor cord in 10 AWG best fits powering a transformer.