Abstract: The invention relates to a method for controlling rotation of a winding spool onto which an optical fiber is wound in a proof-testing machine. The optical fiber is guided in the proof-testing machine at a given line speed from an input pulling device to an output pulling device and then to the spool. The input and output pulling device is arranged to subject the optical fiber to a predetermined tensile stress. The method includes upon detection of a break between an output point (A) of the input pulling device and between an input point (B) of the output pulling device, a step of controlling the rotational speed of the spool to bring it to a complete stop; and a step of passing the optical fiber between an output point (C) of the output pulling device and an input point (D) of the winding spool in a fiber accumulation zone adapted to accumulate a predetermined fiber length preventing an fiber broken end resulting from the break going beyond the input point (D) of the winding spool.

Abstract: The invention relates to a method for controlling rotation of a winding spool (30) onto which an optical fiber (100) is wound in a proof-testing machine, the optical fiber being guided in the proof-testing machine at a given line speed from an input pulling device (10) to an output pulling device (20), then to the spool (30), the input and output pulling device being arranged to subject the optical fiber to a predetermined tensile stress, the method comprising: upon detection of a break between an output point (A) of the input pulling device and between an input point (B) of the output pulling device, a step of controlling the rotational speed of the spool to bring it to a complete stop; —a step of passing the optical fiber between an output point (C) of the output pulling device and an input point (D) of the winding spool in a fiber accumulation zone (90) adapted to accumulate a predetermined fiber length preventing an fiber broken end resulting from the break going beyond the input point (D) of the winding