Recommendations for small renewable energy and hybrid systems for rural electrification – Part 9-4: Integrated system – User installation (Edition 1.0)
The purpose of this part of IEC 62257 is to specify the general requirements for the design and the implementation of a userapos;s installation.This part of IEC 62257-9 applies to single phase user??s electrical installations with maximum power of 500 VA@ in Decentralized Rural Electrification Systems (DRES).NOTE For installations above 500 VA in decentralized electrification systems@ IEC 62257-5 applies.This part of IEC 62257-9 is applicable to installations supplied by a microgrid (120 V a.c. or 230 V a.c.) and to installations encompassing their own single-unit micropowerplant (120 V a.c. or 230 V a.c. or 12 V d.c. or 24 V d.c.)The part of IEC 62257-9 applies neither to the electric power production and distribution installations described in the sections concerning microplants and microgrids@ nor to user electrical equipment. It details the rules governing the design and construction of consumer??s electrical installations for the purpose of ensuring the safety of persons and property@ and satisfactory operation in accordance with the purpose for which the installations are designed.It applies to new installations and modifications of existing installations.