IEC 62973-4-2021 pdf download.Railway applications – Rolling stock – Batteries for auxiliary power supply systems – Part 4: Secondary sealed nickel-metal hydride batteries.
This part of IEC 62973 applies to secondary sealed nickel-metal hydride battery technologies for auxiliary power supply systems used on rolling stock. This document specifies the requirements of the characteristics and tests for the sealed nickel-metal hydride cells and supplements IEC 62973-1 which applies to any rolling stock types (e.g. light rail vehicles, tramways, streetcars, metros, commuter trains, regional trains, high speed trains, locomotives, etc.).
Unless otherwise specified, the requirements of IEC 62973-1 apply. This document also specifies the requirements of the interface between the batteries and the battery chargers.
2 Normative references
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 60051 (all parts), Direct acting indicating analogue electrical measuring instruments and their accessories IEC 60077-1 , Railway applications – Electric equipment for rolling stock – Part 1: General service conditions and general rules IEC 62485-2, Safety requirements for secondary batteries and battery installations – Part 2: Stationary batteries IEC 62675, Secondary cells and batteries containing alkaline or other non-acid electrolytes – Sealed nickel-metal hydride prismatic rechargeable single cells
IEC 62902:201 9, Secondary cells and batteries – Marking symbols for identification of their chemistr
y IEC 62973-1 :201 8, Railway applications – Rolling stock – Batteries for auxiliary power supply systems – Part 1: General requirements
IEC 631 1 5-1 :2020, Secondary cells and batteries containing alkaline or other non-acid electrolytes – Sealed nickel-metal hydride cells and batteries for use in industrial applications – Part 1: Performance
IEC 631 1 5-2:2021 , Secondary cells and batteries containing alkaline or other non-acid electrolytes – Sealed nickel-metal hydride cells and batteries for use in industrial applications – Part 2: Safety
3 Terms, definitions and abbreviated terms
3.1 Terms and definitions
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.
NOTE All typical battery related descriptions are defined in IEC 60050-482.
3.1.1 nickel-metal hydride battery
Ni-MH battery secondary battery with an electrolyte of aqueous potassium hydroxide, a positive electrode containing nickel as nickel hydroxide and a negative electrode of hydrogen in the form of a metal hydride
Note 1 to entry: Nickel-metal hydride battery contains assembly of sealed cells.
[SOURCE: IEC 60050-482:2004, 482-05-08, modified – Abbreviation and Note 1 to entry have been added.]
3.1.2 cell
basic functional unit, consisting of an assembly of electrodes, electrolyte, container, terminals and usually separators, that is a source of electric energy obtained by direct conversion of chemical energy
Note 1 to entry: In this document cell means secondary sealed nickel-metal hydride cell,[SOURCE: IEC 60050-482:2004, 482-01 -01 , modified – Note 1 to entry has been replaced.]IEC 62973-4 pdf download.