IEC 60623:2001 pdf free download Secondary cells and batteries containing alkaline or other non-acid electrolytes — Vented nickel-cadmium prismatic rechargeable single cells
1.1scope
This International Standard specifies marking, designation, dimensions, tests and requirementsfor vented nickel-cadmium prismatic secondary single cells.
NOTE ln this context, “prismatic” refers to cells having rectangular sides and base.
When there exists an lEC standard specifying test conditions and requirements for cells usedin special applications and which is in conflict with this standard，the former shall takeprecedence.
1.2 Normative references
The following normative documents contain provisions which，through reference in this text,constitute provisions of this International Standard. For dated references,subsequentamendments to,or revisions of,any of these publications do not apply.However,parties toagreements based on this International Standard are encouraged to investigate the possibilityof applying the most recent editions of the normative documents indicated below.For undatedreferences, the latest edition of the normative document referred to applies.Members of lECand lSo maintain registers of currently valid International Standards.
IEC 60050(486),International Electrotechnical Vocabulary – Chapter 486: Secondary cells andbatteries
IEC 60051 (all parts),Direct acting indicating analogue electrical measuring instruments andtheir accessories
IEC 60410,Sampling plans and procedures for inspection by attributesIEC 60417 (all parts),Graphical symbols for use on equipment
IEC 60485, Digital electronic d.c. voltmeters and d.c. electronic analogue-to-digital converters
IEC 61438，Possible safety and health hazards in the use of alkaline secondary cells andbatteries – Guide to equipment manufacturers and users
1.3Definitions
For the purpose of this International Standard, the definitions contained in IEC 60050(486) andthe following apply.
1.3.1
vented cell
a secondary cell having a cover provided with an opening through which gaseous products may
escape.
NOTE The opening may be fitted with a venting system.
1.3.2
nominal voltage
the nominal voltage of a vented nickel-cadmium rechargeable single cell is 1 ,2 V
1.3.3
rated capacity
quantity of electricity C 5 Ah (ampere-hours) declared by the manufacturer which a single cell can deliver when discharged at the reference test current of 0,2 I t A to a final voltage of 1 ,0 V at +20 °C after charging, storing and discharging under the conditions specified in clause 4 1.4 Parameter measurement tolerances
The overall accuracy of controlled or measured values, relative to the specified or actual values, shall be within these tolerances:
a) +1 % for voltage;
b) +1 % for current;
c) +2 °C for temperature;
d) +0,1 % for time;
e) +1 % for capacity.
These tolerances comprise the combined accuracy of the measuring instruments, the measurement techniques used, and all other sources of error in the test procedure.
For assistance in selecting instrumentation see IEC 60051 for analogue instruments and IEC 60485 for digital instruments. The details of the instrumentation used shall be provided in any report of results.
2 Designation and marking
2.1 Cell designation
Vented nickel-cadmium prismatic secondary single cells shall be designated by the letter “K”
followed by a letter L, M, H or X which signifies:
? low rate of discharge (L);
? medium rate of discharge (M);
? high rate of discharge (H);
? very high rate of discharge (X).
IEC 60623:2001 pdf free download
