scope:

This standard specifies the characteristics of insulating synthetic rope assemblies and is applicable to electric traction overhead contact lines for railways, light railways, tramways, trolleybuses and other systems. These insulating synthetic ropes are utilised to provide mechanical support and electrical isolation for overhead contact lines. They are generally used in the following application fields: - delta suspension of contact wires, -catenary cable, - mid point anchoring, - tie, - dropper, - headspan, - noise and vibration damper. It is a requirement that the whole of the provisions contained in this standard be applied when insulating synthetic ropes are to be used in overhead contact lines. The standard establishes the product characteristics, the test methods, checking procedures to be used with the insulating synthetic ropes, together with the ordering and delivery requirements. Deviations from the requirements of this standard are permitted when the soundness of such deviations can be substantiated or additional documentation to improve design control procedures is desirable. Additional tests may be specified by the purchaser to measure the compliance of the insulating synthetic rope under particular operating conditions. The object of this standard is to stipulate the provisions for the design and to allow the provisions of the service indicated by the supplier to the purchaser or informed buyer.