BSI PD IEC TS 62257-9-8:2020
$215.11
Renewable energy and hybrid systems for rural electrification – Integrated systems. Requirements for stand-alone renewable energy products with power ratings less than or equal to 350 W
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 74 |
This part of IEC 62257 provides baseline requirements for quality, durability and truth in advertising to protect consumers of off-grid renewable energy products. Evaluation of these requirements is based on tests described in IEC TS 62257-9-5. This document can be used alone or in conjunction with other international standards that address the safety and durability of components of off-grid renewable energy products.
This document applies to stand-alone renewable energy products having the following characteristics:
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The products are powered by photovoltaic (PV) modules or electromechanical power generating devices (such as dynamos), or are designed to use grid electricity to charge a battery or other energy-storage device for off-grid use. The requirements may also be appropriate as guidance for evaluating the quality of devices with other power sources, such as thermoelectric generators.
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The peak power rating of the PV module or other power generating device is less than or equal to 350 W.
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All components required to provide basic energy services are sold/installed as a kit, included as a part of family of products as defined in 4.2.5, or integrated into a single component, including at a minimum:
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a battery/batteries or other energy storage device(s);
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power generating device, such as a solar panel, capable of charging the battery/batteries or other energy storage device(s);
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cables, switches, wiring, connectors and protective devices sufficient to connect the power generating device, power control unit(s) and energy storage device(s).
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The system evaluated includes all the loads (lighting, television, radio, fan, etc.) and load adapter cables that are sold or included as part of the kit or integrated into kit components.
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The PV module maximum power point voltage and the working voltage of any other components in the kit do not exceed 35 V. Exceptions are made for AC-to-DC converters that meet appropriate safety standards. Systems that include PV modules (or combinations of PV modules) with ratings that exceed 240 W at peak power, 35 V at open circuit or 8 A at short circuit are subject to additional safety requirements beyond those assessed in IEC TS 62257-9-5.
NOTE This voltage limit corresponds to the definition of decisive voltage classification A (DVC-A) for wet locations in Table 6 of IEC 62109-1:2010. The limits of 240 W, 35 V and 8 A are consistent with the definition of Class III in IEC 61730-1.
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These requirements cover only DC outputs and loads. Products that include inverters, AC outputs/outlets, or AC appliances are not within the scope of this document. Products can have AC inputs.
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No design expertise is required to choose appropriate system components.
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All electrical connections, except for permanent connections made at the time of installation, can be made using plug-and-socket connectors without the use of any tools. All connections made in the field are straightforward to make and do not require technical expertise, such as wrapping wire in a specific direction, soldering, or crimping.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 4 | CONTENTS |
| 7 | FOREWORD |
| 9 | INTRODUCTION |
| 10 | 1 Scope |
| 11 | 2 Normative references |
| 12 | 3 Terms and definitions |
| 17 | 4 Test requirements 4.1 General |
| 18 | Tables Table 1 – Summary of test requirements and alternatives – initial testing requirements to determine compliance with Clause 5 Table 2 – Summary of test requirements – recurring testing requirements to ensure continued compliance with Clause 5 |
| 19 | 4.2 Initial testing requirements 4.2.1 General 4.2.2 Quality test method 4.2.3 Accelerated verification method |
| 20 | 4.2.4 Pay-as-you-go targeted testing |
| 21 | 4.2.5 Product families 4.2.6 Similar products |
| 22 | 4.2.7 Verification of product identicality 4.2.8 Reference to other standards |
| 24 | 4.3 Recurring testing requirements 4.4 Retesting of non-conforming products |
| 25 | 4.5 General testing requirements applicable to all testing pathways 4.5.1 General 4.5.2 Exception for accessory lights |
| 26 | 5 Quality requirements 5.1 General |
| 27 | Table 3 – Summary of quality requirements |
| 28 | 5.2 Truth in advertising 5.2.1 General |
| 29 | 5.2.2 Assessment of run time values |
| 30 | 5.2.3 Information and performance reporting requirements |
| 33 | 5.2.4 Fee-for service or pay-as-you-go (PAYG) metering requirements 5.2.5 Included appliances requirements 5.2.6 Assessment of ingress protection advertisements |
| 34 | 5.3 Ports requirements 5.3.1 General |
| 35 | 5.3.2 Voltage converters 5.3.3 Ports with multiple output voltages 5.3.4 Appliance voltage compatibility requirements 5.3.5 Truth-in-advertising requirements |
| 36 | 5.3.6 Functionality requirements |
| 39 | 5.4 Lumen maintenance 5.5 Health and safety 5.5.1 AC-DC power supply safety 5.5.2 Hazardous substances |
| 40 | 5.5.3 Circuit and overload protection 5.5.4 Wiring and connector safety 5.5.5 Additional tests for PV modules Table 4 – Sample size and renewal requirements for PV tests |
| 41 | Table 5 – Examples of maximum current ratings |
| 43 | 5.5.6 Requirements for systems with large PV modules or arrays 5.6 Battery requirements 5.6.1 Provision of battery specification sheets 5.6.2 Battery charge control |
| 44 | Table 6 – Default battery deep discharge protection voltage specifications Table 7 – Default battery overcharge protection voltage specifications |
| 45 | 5.6.3 Specific requirements for lithium-based batteries |
| 46 | 5.6.4 Battery durability 5.7 Quality and durability 5.7.1 General 5.7.2 Physical and water ingress protection |
| 47 | Table 8 – Physical ingress protection requirements Table 9 – Water protection requirements |
| 49 | 5.7.3 Drop test requirements Figure 1 – Example water protection warning label or instruction |
| 50 | Figure 2 – Decision process to determine whether or not a component is subject to the drop test |
| 51 | 5.7.4 Soldering and electronics quality 5.7.5 Switch, gooseneck, connector, and moving parts durability 5.7.6 Strain relief durability 5.7.7 Outdoor cable durability (size B products only) |
| 52 | 5.7.8 PV overvoltage requirement |
| 53 | 5.7.9 Miswiring protection requirement 5.7.10 Requirements specific to systems with non‑plug‑and‑play connections |
| 54 | 5.8 Consumer information 5.8.1 Warranty requirements |
| 55 | 5.8.3 User manual requirements (size B products only) |
| 56 | 5.8.4 Component replacement methods (size B products only) |
| 57 | Annex A (normative)Testing of similar products A.1 General A.2 Guidelines A.2.1 Visual screening A.2.2 Lumen maintenance and light output |
| 58 | A.2.3 Charge controller testing A.2.4 PV modules A.2.5 Battery durability testing A.2.6 Connector durability testing A.2.7 Battery testing, full-battery run time, solar run time, and energy service calculations |
| 59 | A.2.8 Miswiring protection A.2.9 Output overload A.2.10 PV overvoltage A.2.11 Assessment of DC ports A.2.12 Power consumption and charging efficiency A.2.13 Voltage range |
| 60 | A.2.14 Changes to firmware or software |
| 61 | Annex B (normative)Partial shading test for photovoltaic modules B.1 General B.2 Equipment requirements |
| 62 | B.3 Test prerequisites B.4 Procedure |
| 64 | B.5 Calculations B.6 Pass criteria B.7 Reporting |
| 66 | Annex C (normative)Visual screening and durability tests for photovoltaic modules C.1 General C.2 Durability of markings test C.2.1 Equipment requirements C.2.2 Test prerequisites C.2.3 Procedure C.3 Sharp edge test C.3.1 Test prerequisites |
| 67 | C.3.2 Procedure C.4 Screw connections test C.4.1 Equipment requirements C.4.2 Test prerequisites C.4.3 Required test conditions C.4.4 Procedure |
| 68 | Table C.1 – Torque tests on screws per IEC 61730-2 |
| 69 | C.5 Impact test C.5.1 Equipment requirements C.5.2 Test prerequisites C.5.3 Procedure C.6 Bending or folding test C.6.1 General C.6.2 Equipment requirements C.6.3 Test prerequisites |
| 70 | C.6.4 Required test conditions C.6.5 Procedure C.6.6 Pass criteria C.7 Reporting |
| 72 | Bibliography |
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