This Technical Report covers procedures for the installation and maintenance of optical fibre cables on overhead power lines. This includes: - optical ground wire (OPGW) fibre cable; - optical phase conductor (OPPC) fibre cable; - optical attached fibre cable (OPAC); - all dielectric self supporting (ADSS) optical fibre cable. Optical fibre cables are considered for single and multi-circuit constructions in common use within some countries. The primary concern is the necessary precautions to ensure the safety of personnel and equipment when installing or maintaining these types of optical fibre cable on overhead power lines.