This Quick Reference Guide is intended to provide highlights of OPGW installation instructions needed in the field. - SCOPE This document covers all the activities usually performed by PRYSMIAN for on-site installation of OPGW fibre optic cables, including transport, installation, accessory assembly, verification of optical. In principle, the tension pay-off method is adopted. Suitable tension should be maintained to keep OPGW hanging in the air to avoid abrasion of the OPGW cable on the ground. To. This manual is formulated in accordance with IEEE 1138 - 2008 and IEEE 524 - 1992, etc. OPGW has dual functions of aerial ground wire and fiber communication.