contrepoids

Traductions

• anglais

  Auteur : Vinet, Louise, 1976

  Définition

  A conductor or system of conductors, arranged beneath the line, located on, above, or most frequently below the surface of the earth, and connected to the footings of the towers or poles supporting the line. (Institute of Electrical and Electronics Engineers (The). IEEE Standard Dictionary of Electrical and Electronics Terms, 1972 : 123).

  Note :

  Indeed, the very term "Counterpoise" appears to have been borrowed from radio, in which a wire used to balance capacitance is called by that name. It appears today, however, in the light of theory and experiment, that the capacitance effect of a counterpoise is of no moment, and that for all practical purposes it is nothing more mysterious than a variable impedance. Consequently the designation "Counterpoise" is not very appropriate, but has become probably too well rooted in lightning protection terminology to be ejected at this late date. (Bewley, L.V. Lightning Proof Transmission Lines. Theory, Design, Construction, Reconstruction and Operating Experience. The Counterpoise, 1938 : 15).

  Termes :

  1. counterpoise
  2. counterpoise wire