This part of IEC60794 , which is a family specification, covers optical self-supporting aerial telecommunication cables. Requirements of the sectional specification IEC60794‑3 for duct, buried and aerial cables are applicable to cables covered by this standard. Self-supporting aerial telecommunication cable in this context means a cable construction with sufficient strength members designed to be suspended on poles and similar devices without the aid of another supporting wire or conductor. ADSS cables installed on power lines which require special sheath material for tracking and erosion resistance and other constructions intended for high-voltage applications are not covered by this standard. Detail specifications may be prepared based on this family specification. NOTE IECTR62839‑1 gives rules to build an environmental declaration if needed.