EN IEC 63056:2020 pdf free.Secondary cells and batteries containing alkaline or other non-acid electrolytes – Safety requirements for secondary lithium cells and batteries for use in electrical energy storage systems (IEC 63056:2020).
Battery systems and the cells they contain shall comply with the applicable general safetyconsiderations of IEC 62619. Within the standard temperature range,secondary cells can becharged at the maximum charge current，which is specified from a safety point of view.Lithium-ion cells shall always be operated within the operating region values and the storageconditions specified by the manufacturer.
The safety of lithium secondary cells and battery systems requires the consideration of twosets of applied conditions:
1) intended use;
2) reasonably foreseeable misuse.
Cells and battery systems shall be so designed and constructed that they are safe underconditions of both intended use and reasonably foreseeable misuse. lt may also be expectedthat cells and battery systems subjected to intended use shall not only be safe but shallcontinue to be functional in all respects.
lt is expected that cells or battery systems subjected to misuse may fail to function. However,even if such a situation occurs, they shall not present any significant hazards.
Potential hazards which are the subject of this document are:
a) fire,
b) burst/explosion,
c) critical electrical short circuit due to leakage of cell electrolyte, mechanical deformation or incorrect installation,
d) venting that continuously vents out flammable gases,
e) rupture of the casing of cell, module, battery pack,and battery system with exposure of internal components.
Conformity is checked by the tests in accordance with the appropriate standards in Clause 2.
Moving parts that have potential to cause human injuries shall be applied appropriate designand necessary measures in order to reduce the risk of injuries，including those that may beincurred during installation while cells or battery systems are being incorporated intoequipment.
Wiring and its insulation shall be sufficient to withstand the maximum anticipated voltage,current, temperature，altitude and humidity requirements. The design of wiring shall be suchthat adequate clearances and creepage distances are maintained between conductors inaccordance with IEC 60950-1:2005,3.1 and 3.2 (test temperature relies on the batterysystem’s operating region specified by the manufacturer). Hazardous live parts of the batterysystem shall be protected to avoid the risk of electric shocks, including during installation.EN IEC 63056 pdf download.