英和和英

語源

From dual +‎ voltage.

形容詞

dual-voltage (not comparable)

1. (rail transport, of an electric train) Able to run using two different voltages, depending on the voltage supplied to the particular railway line, whether by third rail direct current or overhead wires.
   • 1957 December, “European Electrification Progress”, in Railway Magazine, page 820:

     With multi-voltage techniques in their present state of development, the greatest disadvantage resulting from these differences is the impossibility of fast through multiple-unit expresses. Dual-voltage trains work between Amsterdam and Brussels, but many additional problems would arise if they were to run south of Luxembourg.

   • 2019 October, “'710s' debut on Watford DC services”, in Modern Railways, page 88:

     Transport for London has ordered 48x4-car and 6x5-car '710s' from Bombardier, with the initial order of 45x4-car units comprising 31x4-car AC-only units for West Anglia services and 14x4-car dual-voltage units for the Gospel Oak to Barking line (GOBLIN) and Watford DC services. However, this has recently been varied, with one of the AC-only units now to be delivered as a dual-voltage set. The nine units later added to the order are all dual-voltage, meaning the total order is now for 30x4-car AC-only units and 18x4-car and 6x5-car dual-voltage units.

2. (rail transport, of a station) Provided with two separate traction power supplies at different voltages, typically as a changeover point between voltages.
   • 1962 October, “Beyond the Channel: Belgium: Brussels-Paris electrification”, in Modern Railways, page 276:

     Quévy, the end-to-end junction with the S.N.C.F. main line via Aulnoye to Paris, will be a dual-voltage station with arrangements of overhead and signalling equipment similar to those at Luxembourg, another junction between the 3,000V and 25kV systems.

関連する語

• dual-frequency