The key to the OPGW optical cable stranding process lies in the control of armored monofilament pay-off tension, pre-forming, mold, stranding speed, and inner and outer layer pitch. Prysmian has a built-in multi-step quality assurance programme, which covers the entire production process from cable design and raw materials purchasing, to final inspecti tion for any single project. Such cable combines the functions of grounding and telecommunications. Furthermore this specification contains information concerning the quality assurance during manufacturing, the final accepta ce tests. This specification covers COMCAST® OPGW for the installation on high voltage overhead power lines. In this study, ten kinds of OPGW lightning-strike tolerance was tested according to the IEC standards.