Ducter

Ducter is a term that can refer to several distinct concepts. In the context of electrical engineering and physics, a ducter is a material that allows for the easy passage of electrical current. This is synonymous with the term conductor. Conductors are typically metals such as copper, silver, or aluminum, which possess free electrons that can move readily when an electric field is applied. Insulators, conversely, resist the flow of electric current.

In a more specialized application, "ducter" can also refer to a specific type of testing instrument used in electrical maintenance. This device, often called a "ducer" or more formally a low-resistance ohmmeter or Ductor tester, is designed to measure very low electrical resistances. These low resistances are often found in components like busbars, switchgear contacts, and grounding connections. By applying a specific test current and measuring the resulting voltage drop, the instrument can accurately determine the resistance of these connections. This testing is crucial for ensuring the integrity and efficiency of electrical systems, as high resistance can lead to overheating and power loss. The term "dukter" itself is a brand name that has become widely adopted as a generic term for this type of low-resistance ohmmeter.