This article introduces and explains the scope, application, and practical relevance of the eight most widely used fiber and optical cable standards: ITU-T G. 657, IEC 60793, IEC 60794, TIA-568. comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on a l questions concerning standardization in the electrical and electronic fields. It is the responsibility of users. Installing underground fiber optic cables is critical to establishing high speed internet infrastructure that delivers reliable connectivity for businesses nationwide. Unlike traditional copper systems, fiber optic cables require specialized handling techniques and precise installation methods to. An American National Standard Jointly developed with The Fiber Optic Association T h e FiberO pti c Association FOA Published by National Electrical Contractors Association NOTICE OF COPYRIGHT This document is copyrighted by NECA ISBN: 978-1-944148-17-1 ©2016. They had chosen an OPGW cable. e cited in contract, program, and other Agency documents as a technical requirement. 2, Hardware Quality Assurance Program Requirements for Programs and Projects.