IEC TS 62257-7-1:2010 PDF

Scope: This part of IEC 62257 specifies the general requirements for the design and safety of generators used in decentralized rural electrification systems. The earthing systems of the exposed conductive parts and neutral earthing systems which are considered in this technical specification are those specified in IEC 62257 series for IES (see IEC 62257-9-3 and IEC 62257-9-4) and CES (IEC 62257-9-2). This technical specification contains requirements for ELV and LV PV arrays (see Table 1). Particular attention must be paid to voltage level, as this is important for safety reasons and has an influence on protective measures and on the skill and ability level of people operating the systems. For the sake of completeness, this technical specification gives requirements for d.c. voltages below and above 120 V. The aim is to provide safety and fire protection requirements for: − uninformed persons, including owner(s)/occupier(s) and users of the premises where photovoltaic arrays are installed; − informed workers (e.g. electricians) working on these systems; and − emergency workers (for example fire fighters). For installation of PV arrays see IEC 60364-7-712.

IEC TS 62257-7-1:2010 Referenced Document

IEC 60050-811:1991 International electrotechnical vocabulary; chapter 811: electric traction
IEC 60287 Electric cables - ALL PARTS*， 2018-01-08 Update
IEC 60364 Low-voltage electrical installations - Part 8-82: Functional aspects - Prosumer's low-voltage electrical installations*， 2022-10-20 Update
IEC 60364-7-712:2002 Electrical installations of buildings - Part 7-712: Requirements for special installations or locations; Solar photovoltaic (PV) power supply systems
IEC 60529 Degrees of Protection Provided by Enclosures (IP Code) (Edition 2.1 ***Applies to French text only***)*， 2024-04-19 Update
IEC 61140 Protection against electric shock — Common aspects for installation and equipment*， 2016-01-07 Update
IEC 61215 Crystalline silicon terrestrial photovoltaic (PV) modules - Design qualification and type approval
IEC 61646 Thin-film terrestrial photovoltaic (PV) modules - Design qualification and type approval
IEC 61730 *， 2023-09-12 Update

2010 IEC TS 62257-7-1:2010 Recommendations for small renewable energy and hybrid systems for rural electrification – Part 7-1: Generators – Photovoltaic generators
2006 IEC TS 62257-7-1:2006 Recommendations for small renewable energy and hybrid systems for rural electrification - Part 7-1: Generators - Photovoltaic arrays