• Make sure to take safety precautions (electrical disconnection, etc.).
• Install the grounding device (correct grounding).
• Prepare equipment (see Fig. 4.1)
• Install guide cable and fastener to the latch.
• Respect the appropriate radii of curvature.
• Raise the fiber optic cable up to the guide cable and fixator.
• Maintain the safety distance of the cable reel (15 meters) in relation to the fastener.
• Install the fastener and secure it to the fastener (fixing clamp).
• Temporarily tie the cable to the latch on the clamp.
• Adjust the fastener for proper operation.
• Attach a tow rope to the fixer.
• Start the manual stretching operation smoothly and maintain the stretching speed while respecting the safety distance from the coil.
• At each pole the cable laying is stopped and the expansion loop is made (see Fig. 4.2) if necessary (not necessary in self-supporting cables).
• Continue laying the cable, identifying each pole with optical cable warning labels.
• When necessary, the junction boxes can be mounted on poles (see Fig. 4.3) or on the guy wire (see Fig. 4.4).

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4.2 Ducted Installation

• Make sure to take safety precautions (identification of manholes, presence of gases, fuels, power cables, etc.).
• Preparation, inspection and identification of the ducts to be used (lubrication, sizing, etc.).
• Prepare traction guide cable, if necessary (see FIG 4.5)
• Install guide cable.
• Respect the appropriate radii of curvature.
• Place the cable reel on the appropriate supports to facilitate unwinding.
• Place the necessary pulleys and rollers to facilitate the pulling of the cable through the conduits and manholes of the route.
• Install the fastener and secure the latch (fixing clamp).
• Temporarily tie the cable to the latch on the clamp.
• Adjust the fastener for proper operation.
• Start the manual stretching operation smoothly and maintain the stretching speed, lubricating the cable if necessary.
• In each manhole, the cable guidance will be checked and cable will be reserved (see FIG 4.6) if necessary (especially in manholes where direction changes).
• Continue laying the cables, ensuring that the ends of each section meet at a junction box for subsequent splicing. Allow sufficient length for making splices outside the junction box.
• Identify the ends of each cable in the splice boxes with optical cable identification labels (see FIG 4.7).
• Ensure that during laying (whenever possible by manual traction) a slack of 3 or 4 meters is maintained for unwinding to avoid excessive pulling force and chafing of the cable.
• Once the route is completed, the optical cable laying must be checked using an OTDR to ensure that the cable has not suffered any damage (breaks, excessive bend radii, etc.).
• Condition the cable and close each of the manholes along the corresponding route (cable stapling, identification of reserves, sealing of conduits, etc.).

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