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IEC 62991:2022 pdf download,Particular requirements for source switching equipment (SSE). IEC 62991:2022 applies to source switching equipment, hereafter referred to as SSE, for household and similar uses, primarily intended to be used for energy efficiency (EE) purposes with local production and/or storage of energy. SSE is intended to be installed in low voltage prosumer electrical …... IEC 61540:2023 pdf download, Portable residual current devices (PRCDs) without integral overcurrent protection for household and similar use. IEC 61540:2023 applies to portable residual current devices (PRCDs) for household and similar uses, consisting of a plug, a residual current device (RCD) and one or more socket-outlets or a provision for connection. They do not incorporate …... IEC 60867:2022 pdf download, Insulating liquids - Specifications for unused liquids based on synthetic aromatic hydrocarbons. IEC 60867:2022 covers specifications and test methods for unused synthetic aromatic..