IEC 61897-2020 pdf free
IEC 61897-2020 pdf free.Overhead lines – Requirements and tests for aeolian vibration dampers.
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
IEC 60050(466):1990, International Electrotechnical Vocabulary (1EV) — Chapter 466:
Overhead lines
IEC 60888:1987, Zinc-coated steel wires for stranded conductors
IEC 6 1284:1997, Overhead lines — Requirements and tests for fittings
IEC 61854, Overhead lines — Requirements and tests for spacers
IEC 62567:2013, Overhead lines — Methods for testing self-damping characteristics of conductors
ISO 1461:2009, Hot dip galvanized coatings on fabricated iron and steel articles — Specifications and test methods
ISO 2859-1:1999/AMD1:2011, Sampling procedures for inspection by attributes — Part 1:
Sampling schemes indexed by acceptable quality limit (AQL) for lot-by-lot inspection
ISO 2859-2:1985, Sampling procedures for inspection by attributes — Part 2: Sampling plans indexed by limiting quality level (LQ) for isolated lot inspection
ISO 3951-1:2013, Sampling procedures for inspection by variables — Part 1: Specification for single sampling plans indexed by acceptance quality limit (AQL) for lot-by-lot inspection for a single quality characteristic and a single AQL
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60050-466 apply, as well as the following.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
stockbridge-type aeollan vibration damper
device comprising a steel cable with a weight at each end and one bolted clamp or a helical rod attachment, attachable to a conductor, for the purpose of damping aeolian vibration
3.2 spiral aeolian vibration damper SVD device made of helical plastic which wraps around the conductor for purposes of damping aeolian vibration (these are commonly used on earth wires, OPGW and ADSS cables)
3.3 elastomeric aeollan vibration damper device comprising suspended weights connected to elastomeric articulations and one bolted clamp or a helical rod attachment, attachable to a conductor for the purpose of damping aeolian vibration
3.4 high temperature conductors HTC conductors which are designed to have a maximum continuous operating temperature over 95 °C
3.5 maximum continuous operating temperature conductor temperature specified by the manufacturer and measured at the outer wire layers.IEC 61897 pdf free download.
