Transmission will operate at voltages above _____.

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High-voltage levels in the power system are categorized to separate how we manage local delivery from long-distance transfer. Transmission lines carry power over long distances and use higher voltages to keep current low, which reduces I^2R losses and allows the use of smaller, more economical conductors for the same power. Because of this, the voltage range for transmission sits well above typical distribution voltages. In many training contexts, 46 kilovolts serves as the dividing line: voltages above 46 kV are treated as transmission, while those below are considered distribution or subtransmission. You'll commonly see transmission voltages like 69 kV, 115 kV, 230 kV, and higher, whereas distribution lines are typically in the several kilovolt range, such as 4 kV or 11 kV. The key idea is that higher voltage over long distances reduces current and losses, even though it requires more insulation and larger equipment. So voltages above 46 kV define the transmission level in this context.