IEC 60622:2002 pdf free download Secondary cells and batteries containing alkaline or other non-acid electrolytes – Sealed nickel-cadmium prismatic rechargeable single cells
1.1scope
This International standard specifies marking，tests and requirements for sealed nickel-cadmium prismatic secondary single cells.
NOTEln this context “prismatic” refers to cells having rectangular sides and bases.
Where 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 takesprecedence.
1.2Normative references
The following referenced documents are indispensable for the application of this document.For dated references, only the edition cited applies. For undated references, the latest editionof the referenced document (including any amendments) applies.
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 attributes
IEC 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.
1.3Terms and definitions
For the purpose of this International Standard, the definitions contained in lEC 60050-486 andthe following apply.
1.3.1
sealed cell
cell which remains closed and does not release either gas or liquid when operated within thelimits of charge and temperature specified by the manufacturer. The cell is equipped with asafety device to prevent dangerously high internal pressure.The cell does not require additionto the electrolyte and is designed to operate during its life in its original sealed state
1.3.2
nominal voltage
the nominal voltage of a sealed 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
Sealed nickel-cadmium prismatic secondary single cells shall be designated by the letters “KC” followed by a third 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).
NOTE These types of cells are typically but not exclusively used for the following discharge rates
• L up to 0,5 I t A,
• M up to 3,5 I t A,
• H up to 7,0 I t A,
• X up to and above 7,0 I t A.
IEC 60622:2002 pdf free download
