high-tension

adjective Electricity.

1. subjected to or capable of operating under relatively high voltage: high-tension wire.

noun

1. (modifier) subjected to, carrying, or capable of operating at a relatively high voltagea high-tension wire Abbreviation: HT

1. Having a high voltage, or designed to work at or sustain high voltages. High-tension wires used to carry electrical power over long distances sustain voltages over 200,000 volts. Compare low-tension.