The Communications Authority of Kenya (CAK) is now introducing clear rules to fix these issues. Trench Depth: Cables must now be buried at least 60 centimeters deep to prevent accidental damage. This new move aims to clean up the messy fiber network and. An undated image of a worker performing maintenance on a fibre-optic cables mounted on a utility pole in Nairobi Internet service providers (ISPs) could soon face tougher installation standards after the Communications Authority of Kenya invited public feedback on proposed guidelines aimed at. Kenya is set to dramatically accelerate its digital infrastructure development by connecting over 180 national institutions to a high-speed fibre optic network. The purpose is to raise fibre optic coverage of the country from 62% to 90% by the end of the next financial year.