OPGW cable joint box installation involves several key stages: selecting the appropriate location, preparing both the cable and the joint box, splicing fibers, and sealing the joint box properly. Adhering to these steps ensures optimal performance and longevity of the. Junction boxes are used to connect cables and can be mounted in all kinds of areas. The methods described are intended for guideline use only, as it is impossible to cover all the various conditions that may arise during an installation. Individual company practices for placing. LASHED TYPE FIBRE OPTIC CABLES ADSS (All Dielectric Self Supported fibre optic cables) OPGW (Optical Ground Wire) The installation methods for fibre optic cables are largely the same as those with conventional copper cables. These may be considerably different from those of the copper cable. Aerial Cable Installation Deploying fiber above ground on poles or towers removes the need for underground digging and is particularly useful when the ground is uneven, rocky or both.