IEEE OVERHEAD CONTACT SYSTEMS COMMITTEE FOR RAIL …

Terms, which in OCS are synonymous, are shown (Syn). Where synonyms exist the NON- PREFERRED term has an asterisk (*). OCS Style can be either ‘Fixed Terminated’ or ‘Auto-Tensioned’. Terms that are exclusively to one style, are referenced FT or AT respectively. Typically, TOH systems do not use messenger wires to support the trolley wire. ................
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