| 摘要 |
Apparatus and method for making a self-supporting type fiber optic cable (10) having a messenger section (12) and a core section (14) connected by a web (18). An exemplary apparatus (20) includes a cable core tensioning apparatus (30), a messenger wire tensioning apparatus (40), and a cable tensioning apparatus (60). The cable tensioning apparatus (60) includes a messenger tensioner (61) having a profile with a tensioning recess (62) and a clearance recess (64). The tensioning recess (62) being operative to grip and to thereby apply tension to the messenger section (12), and the clearance recess (64) essentially frictionlessly accommodating the formation of undulations in the core section (14). In an exemplary method the undulations are formed in the core section as the cable progresses through tensioning apparatus (60) by maintaining an essentially decoupled relationship between the core section (14) and the clearance section (64) of the tensioning apparatus (60). Tensioning apparatus (60) can include at least one knife for forming windows in cable (10).
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