IEC 61056-1-2012 pdf free.General purpose lead-acid batteries (valve-regulated types) – Part 1: General requirements, functional characteristics – Methods of test.
This Part of IEG 61056 specifies the general requirements, functional characteristics and methods of test for all general purpose lead-acid cells and batteries of the valve-regulated type
• for either cyclic or float charge application;
• in portable equipment, for instance, incorporated in tools, toys, or in static emergency, or uninterruptible power supply and general power supplies.
The cells of this kind of lead-acid battery may either have flat-plate electrodes in prismatic containers or have spirally wound pairs of electrodes in cylindrical containers. The sulphuric acid in these cells is immobilized between the electrodes either by absorption in a micro- porous structure or in a gelled form.
NOTE The dimensions, terminals and marking of the lead-acid cells and batteries which are applied by this standard are given in IEC 6 1056-2.
4.1 Construction
4.1.1 Batteries of this kind are composed of one or more cells. Multicell-batteries may be supplied either as monobloc batteries (see IEC 60050-482) or as mechanically and electrically interconnected single cells.
The number of cells connected in series in a battery is designated by the letter “ii” throughout this standard.
4.1.2 Batteries shall be fitted with valves. The valve shall not allow gas (air) to enter into the cell but shall allow gas to escape from the cell at a certain internal pressure which does not lead to deformation or other damage of the cell or battery container.
4.1.3 Batteries or cells shall be designed so that neither water nor electrolyte can be added. They shall be suitable for storage and discharge in any orientation (for example, upside down) without leakage of liquid from valves and/or terminal seals. They shall also withstand storage at 20 °C ± 5 K and maximum 80 % relative humidity for one year in inverted orientation without leakage.
4.1.4 All battery components, for example, terminals, intercell connectors, containers, etc. shall be designed for current rates as specified in 5.4.
4.1.5 For charging, batteries or cells shall not be installed in any direction beyond 90 from the upright position.
4.2 Mechanical strength
Batteries shall be designed to withstand mechanical stresses, vibrations and shocks occurring in normal transportation, handling and use.IEC 61056-1 pdf free download.