DS/IEC TS 62257-9-5
Recommendations for renewable energy and hybrid systems for rural electrification – Part 9-5: Integrated systems – Laboratory evaluation of stand-alone renewable energy products for rural electrification
|Publication Date:||18 June 2018|
|ICS Code (Solar energy engineering):||27.160|
NEW!IEC TS 62257-9-5:2018 is available as IEC TS 62257-9-5:2018 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC TS 62257-9-5:2018 applies to stand-alone renewable energy products. This document deals essentially with off-grid renewable energy products with batteries and solar modules with DC system voltages not exceeding 35 V and peak power ratings not exceeding 350 W. The tests contained herein are capable in many cases of adequately assessing systems at higher voltages and/or power ratings. This new edition includes the following significant technical changes with respect to the previous edition: - replaced the term "stand-alone lighting kits" with "stand-alone renewable energy products" throughout the document (including the title) to reflect that the revised document is applicable to a broader range of products with a more diverse set of capabilities. - added test methods for flooded lead-acid batteries. - significantly revised the protection tests, assessment of DC ports, appliance tests, and energy service calculations based on field experience. - revised the voltage operating points at which testing is carried out to better reflect actual operation and to simplify the procedures for testing products without lights. - revised the energy service calculations to include the effect of multiple simultaneously connected loads on the port voltage and battery-to-port efficiency and to accommodate products with grid or electromechanical charging.