Kahdenjohtoinen
Kahdenjohtoinen is a Finnish term describing a component, cable, or system that uses exactly two conductors or leads to carry current or signals. The phrase is common in electronics and electrical engineering in Finland and is applied to describe both physical cables and the wiring schemes of devices and systems.
Etymology and usage nuance: The word derives from kahdeks? no, from kahden (two) and johtoinen (having leads
Typical applications: kahdenjohtoinen kaapeli refers to a two-core cable with two insulated conductors, used for power
Advantages and limitations: The main advantages are simplicity and lower cost due to fewer conductors and connections.
See also: kolmenjohtoinen, kahdenjohtoinen kaapeli, kaksijohtiminen järjestelmä.