Optical fiber cable, a method of manufacturing the optical fiber cable, and an installation for implementing the method

   
   

An optical fiber cable (10) type comprises at least one tube (12) having optical fibers (14) housed therein. The optical fibers (14) extend helically in a longitudinal direction inside the tube (12). In the method of the invention, the tube (12) is fed to the die for manufacturing the cable (10) by unreeling the tube (12) from the storage reel (24) while the storage reel (24) is held stationary, thereby conferring longitudinal twist on the tube (12) constraining the optical fibers (14) it contains to follow a helical path of pitch substantially equal to the length of one turn of the tube (12) wound on the storage reel (24).

Um tipo do cabo de fibra ótica (10) compreende ao menos um tubo (12) que tem fibras óticas (14) abrigadas nisso. As fibras óticas (14) estendem helicoidal em um sentido longitudinal dentro do tubo (12). No método da invenção, o tubo (12) é alimentado ao dado para manufaturar o cabo (10) desenrolando o tubo (12) do carretel do armazenamento (24) quando o carretel do armazenamento (24) for prendido torção longitudinal estacionária, desse modo conferenciando no tubo (12) que confina as fibras óticas (14) que contem para seguir um trajeto helicoidal do passo substancialmente igual ao comprimento de uma volta do tubo (12) ferido no carretel do armazenamento (24).

 
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