Recommendations for renewable energy and hybrid systems for rural electrification - Part 5: Protection against electrical hazards

2Scope / Description

This section specifies general requirements for preventing electrical hazards to people and equipment in distributed rural electrification systems. Requirements concerning protection against electric shock are based on the fundamental rules in IEC 61140 and IEC 60364. Distributed rural electrification systems (DRES) are designed to supply power to locations not connected to a large interconnected system or national grid to meet basic needs. These locations primarily include isolated residences, village houses, community service facilities (such as public lighting, pumping, health centers, places of worship, cultural venues, administrative buildings, etc.), and locations of economic activity (such as workshops, micro-industries, etc.). DRES systems are classified into three categories: process electrification systems (such as pumping), individual electrification systems (IES, for a single user), and collective electrification systems (CES, for multiple users). Process or individual electrification systems consist of two subsystems: a power generation subsystem and user electrical installations. Collective electrification systems consist of three subsystems: a power generation subsystem, a distribution network (also known as a microgrid), and user electrical installations (including interface equipment with the microgrid). The general requirements specified in this section apply to all identified DRES categories.