IEEE 524:2016 pdf free download – IEEE Guide for the Installation of Overhead Transmission Line Conductors
1.1 Scope
This guide provides general recommendations for the selection of methods, equipment, and toolsthat have been found to be practical for the stringing of overhead transmission line conductors andoverhead groundwires. The guide also includes a comprehensive list of definitions for equipmentand tools used in stringing and for stringing terms commonly employed. This guide does notaddress special conductors such as those used for river and canyon crossing.These conductors maybe custom designed and often may require special considerations.
1.2 Purpose
The purpose of this guide is to present in one document sufficient details of present day methods,materials, and equipment to outline the basic considerations necessary for maintaining safe andadequate control of conductors during stringing operations. References are given in Clause 2 for those desiring more detailed information. Because the terminologyused for many hardware items and for many stringing terms varies from place to place, a list ofdefinitions is included to provide correlation and clarification of the terms most commonlyemployed.
1.3 Application
This guide is broad enough; yet specific enough; to be applicable to the stringing of conventionaloverhead transmission conductors and overhead groundwires(OHGW) of the following types:AAAC,AAC，AACSR, ACAR, ACSR, ACSR/TW,ACSS,ACCR,ACCC, CU, OPGW, aluminum-cladsteel OHGW, and galvanized steel OHGw1. Since stringing practices for different projects will bestrongly influenced by the magnitude and nature of each project and by local circumstances,alternate methods that have been successfully employed are presented. Information contained inthis guide may not be sufficient for certain special cases,such as when stringing extremely longspans, severe line angles,high tensions,or special conductors. In these cases,the manufacturershould be consulted. The practices that are described in this guide provide for continuous control ofthe conductor from the initial setup to the ready-for-service condition. Any legal requirements ofnational, state, or local regulations must, of course, be observed.
The approach used within this guide is first to describe,in general terms, the stringing methodsmost commonly employed, then the specific requirements of the various tools and equipment used.Finally, this guide describes-the application of the methods and equipment used in to the process ofstringing process is described.
2.Normative references References
The following referenced documents are indispensable for the application of this document (i.e,they must be understood and used, so each referenced document is cited in text and its relationshipto this document is explained).For dated references,only the edition cited applies.For undatedreferences, the latest edition of the referenced document (including any amendments or corrigenda)applies.
This guide shall be used in conjunction with the following publications. If the following publicationsare superseded by an approved revision, the revision shall apply.
bullwheel puller: A device designed to pull pulling lines and conductors during stringingoperations. It normally incorporates one or more pairs of urethane-or neoprene-lined, power-driven,single-or multiple-groove bullwheels in which each pair is arranged in tandem. Pulling isaccomplished by friction generated against the pulling line or conductor that is reeved around thegrooves of a pair of the bullwheels. The puller is usually equipped with its own engine; which drivesthe bullwheels mechanically, hydraulically, or through a combination of both. Some of these devicesfunction as either a puller or tensioner. Syn: puller.
bullwheel tensioner: A device designed to hold tension against a pulling line or conductor duringthe stringing phase.Normally, it consists of one or more pairs of urethane-or neoprene-lined, power-braked, single-or multiple-groove bullwheels in which each pair is arranged in tandem. Tension isaccomplished by friction generated against the conductor or pulling line that is reeved around thegrooves of a pair of the bullwheels. Some tensioners are equipped with their own enginesz whichretard the bullwheels mechanically, hydraulically, or through a combination of both. Some of thesedevices function as either a puller or tensioner. Other tensioners are equipped with only friction typeretardation. Syn: brake, retarder, tensioner.