An updated version of this booklet is now available as a textbook on Amazon, is included in the FOA Reference Guide to Outside Plant Fiber Optics and as a section in the FOA Guide website. For every fibre optic procurement tender, DTVP, EVB-IT and technical specification, public authorities and municipalities have been required to consider the new VDE guidelines 0800-730 and the EU Gigabit Infrastructure Regulation (GIA) since February 2026 – these define binding requirements for. Government fibre optic tenders, public optical fibre procurement, and VOB fibre specifications are subject to simplified award procedures with new value thresholds from 2025, which will significantly ease the burden on municipal contracting authorities when procuring modular fibre-optic systems. Fiber optic cable—particularly tight-buffered and loose-tube designs—can sustain microbend losses and connector degradation when subjected to improper burial conditions. Like all standards, this document only offers guidelines for design, installation and testing of fiber optic. Underground cables are pulled in conduit that is buried underground, usually 1-1. 2 meters (3-4 feet) deep to reduce the likelihood of accidentally being dug up. In extreme cold climates, cables may need to be buried at greater depths where there temperatures are colder and frost penetrates to. specifications under which the various work for trenching & laying of optical fiber cable are to be executed by the Vendor.
