IEC 61982 pdf download

IEC 61982 pdf download.Secondary batteries (except lithium) for the propulsion of electric road vehicles
1 Scope
This International Standard is applicable to performance and endurance tests for secondary batteries used for vehicle propulsion applications. Its objective is to specify certain essential characteristics of cells, batteries, monoblocks, modules and battery systems used for propulsion of electric road vehicles, including hybrid electric vehicles, together with the relevant test methods for their specification. The tests may be used specifically to test batteries developed for use in vehicles such as passenger vehicles, motor cycles, commercial vehicles, etc. This standard is not applicable to battery systems for specialist vehicles such as public transport vehicles, refuse collection vehicles or heavy duty vehicles, where the battery is used in the similar way to the industrial vehicles. The test procedures are defined as a function of the vehicle requirements of performance. This standard is applicable to lead-acid batteries, Ni/Cd batteries, Ni/MH batteries and sodium based batteries used in electric road vehicles. Annex A specifies performance and cycle life test procedures of Ni/MH batteries used for the propulsion of hybrid electric vehicle (HEV). NOTE This standard is not applicable to lithium-ion batteries for automobile application that are specified in IEC 62660-1 , IEC 62660-2, ISO 1 2405-1 and ISO 1 2405-2 (to be published).
3 Terms and definitions
For the purposes of this document, the terms and definitions and those given in IEC 60050-482, as well as the following apply. 3.1 battery system energy storage device that includes cells or cell assemblies or battery pack(s) as well as electrical circuits and electronics EXAMPLES Battery control unit, contactors. Note 1 to entry Battery system components can also be distributed in different devices within the vehicle. 3.2 benchmark energy content the battery energy content measured during the reference test cycle and used as the reference value to assess the battery deterioration during its life 3.3 nominal voltage numerical value of the voltage of a cell, dependent on the electrochemical system. The cell voltage is the voltage of the test unit divided by the number of cells Note 1 to entry The symbol used for the nominal voltage of a cell is “U n (V)”. Note 2 to entry Nominal voltages are given in Table 1 . 3.4 type testing test that measures the performance of the product under closely controlled conditions, largely free from environmental and self-generated influences 3.5 rated capacity quantity of electricity which a fully charged cell or battery can deliver, when discharged at a constant current I n to a final voltage U f over a period of n hours and at a specified temperature Note 1 to entry The rated capacity C n of a cell or battery is declared by the manufacturer.
4 General test requirements
4.1 Accuracy of measuring instruments 4.1 .1 Electrical measuring instruments 4.1 .1 .1 Range of measuring devices The instruments used shall enable the values of voltage and current to be correctly measured. The range of these instruments and measuring methods shall be chosen so as to ensure the accuracy specified for each test. For analogue instruments, this implies that the readings shall be taken in the last third of the graduated scale. Any other measuring instruments may be used provided they give an equivalent accuracy. 4.1 .1 .2 Voltage measurement The instruments used for voltage measurement shall be voltmeters of an accuracy class equal to 0,5 or better. The resistance of the voltmeters used shall be at least 1 000 Ω/V (see IEC 60051 series). 4.1 .1 .3 Current measurement The instruments used for current measurement shall be ammeters of an accuracy class equal to 0,5 or better. The entire assembly of ammeter, shunt and leads shall be of an accuracy class of 0,5 or better (see IEC 60051 series or refer to IEC 60359).