ENA TS 50-19 Issue 3:2023
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The latest, up-to-date edition.
Standard numbering for small wiring (for switchgear and transformers together with their associated relay panels)
Published date
08-11-2023
Publisher
This Technical Specification provides general rules for identification of individual wires (by ferruling) to denote its function in plant such as transformers, switchgear, control and protection equipment by using an alphanumeric notation.
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