IEC 62973-2 pdf – Railway applications – Rolling stock – Batteries for auxiliary power supply systems – Part 2: Nickel Cadmium (NiCd) batteries

IEC 62973-2 pdf – Railway applications – Rolling stock – Batteries for auxiliary power supply systems – Part 2: Nickel Cadmium (NiCd) batteries
1scope
This part of lEC 62973 applies to NiCd rechargeable batteries for auxiliary power supplysystems used on railway vehicles. It is an extension of IEC 62973-1:2018 which specifiescommon requirements for all battery technologies of other parts of lEC 62973. Unlessotherwise specified, the requirements of iEC 62973-1:2018 apply.
Battery systems described in this document are used in conjunction with charging systemsonboard rolling stock, as described in IEC 62973-1:2018. Charging systems (e.g. LVPs,converters, etc.) are excluded from the scope of this document.
This document also specifies the design，operation parameters，safety recommendations,routine and type tests,as well as marking and designation.
This document is used in addition to lEC 60623:2017 or lEC 62259:2003 for NiCd Cells.
Specific requirements on subcomponents within the battery systems are covered in thisdocument, e.g. temperature measurement components.
When there is an existing lEC standard specifying additional test conditions and requirementsfor NiCd batteries used in specific railway applications and which conflicts with this document,the latter takes precedence.
The main objective of this document is to achieve standardization of the electrical interfacesby considering NiCd battery parameters to allow for calculating the NiCd battery capacityrequired for a specific load profile.
Normative references
The following documents are referred to in the text in such a way that some or all of theircontent constitutes requirements of this document. For dated references,only the editioncited 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 andtheir accessories
IEC 60077-1，Railway applications – Electric equipment for rolling stock – Part 1: Generalservice conditions and general rules
IEC 60623:2017, Secondary cells and batteries containingalkaline or other non-acidelectrolytes – Vented nickel-cadmium prismatic rechargeable single cells
IEC 61373:2010，Railway applications – Rolling stock equipment – Shock and vibration test
IEC 62259:2003, Secondary cells and batteries containingalkaline or other non-acidelectrolytes- Nickel cadmium prismatic secondary single cells with partial gas recombination
IEC 62485-2:2010, Safety requirements for secondary batteries and battery installationsPart 2: Stationary batteries
IEC 62973-1:2018, Railway applications Rolling stock – Batteries for auxiliary power supplysystems – Part 1: General requirements
3 Terms,definitions and abbreviated terms3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
lSO and lEC maintain terminological databases for use in standardization at the followingaddresses:
.IEC Electropedia: available at http://www.electropedia.orgl
. Iso Online browsing platform: available at http://www.iso.org/obpNOTE All typical battery related descriptions are defined in lEC60050-4823.1.1
battery crate
container with frame walls for holding several cells or batteries
Note 1 to entry: Refer to 4.1 and Clause 5.
[SOURCE: IEC 60050-482:2004/AMD1:2016,482-05-10，modified – Note 1 to entry has beenadded.]
3.1.2
battery tray
container with a base and walls for holding several cells or batteries
Note 1 to entry: Refer to 4.1 and Clause 5.
[SOURCE: IEC 60050-482:2004/AMD1:2016,482-02-35,modified – Note 1 to entry has beenadded.]
3.1.3cell
basic functional unit of NiCd battery,consisting of an assembly of electrodes,electrolyte,container，terminals and usually separators，that is a source of electric energy obtained bydirect conversion of chemical energy
[SOURCE: IEC 60050-482:2004/AMD1:2016,482-01-01,modified – Note has been deletedand the specific use “of NiCd battery” has been added.]
3.1.4
monobloc battery
battery with multiple separate but electrically connected cell compartments each of which isdesigned to house an assembly of electrodes，electrolyte,terminals or interconnections andpossible separators