IEC 62109-3-2020 Safety of power converters for use in photovoltaic power systems – Part 3: Particular requirements for electronic devices in combination with photovoltaic elements

IEC 62109-3-2020 Safety of power converters for use in photovoltaic power systems – Part 3: Particular requirements for electronic devices in combination with photovoltaic elements. 4 General testing requirements Clause 4 of IEC 62109-1:2010 and IEC 62109-2:2011 is applicable except as follows: Addition: NOTE In IEC 621 09-1 :201 0 and therefore in this Part 3, test requirements that relate only to a single type of hazard (shock, fire, etc.) are given in the clause specific to that hazard type. Test requirements that relate to more than one type of hazard (for example testing under fault conditions) or that provide general test conditions, are given in this Clause 4. 4.1 General The following text replaces the requirements in IEC 62109-1:2010. Testing required by this document is to demonstrate that electronic devices in combination with photovoltaic elements are fully in accordance with the applicable requirements of this document. This document requires the use of requirements from IEC 61 730-2. Guidance on modifications to the test procedures in IEC 61 730-2:201 6 is provided in Table 300. Type A MIE may be tested to the condensed sequence of Figure 300 when the PV module has already been evaluated to IEC 61 730-2:201 6 or newer. Designs that allow the electronic element to be electrically and mechanically separated from the PV module without affecting the outcome of the test can use samples consisting of just the electronic element for those tests that do not require a full MIE. Tests for type B MIE may also be used for constructions where the PV element can be separated and has not yet been evaluated as a PV module to IEC 61 730-2:201 6 or newer independently from the electronic element. Type B MIE will be evaluated to the test sequence of IEC 61 730-2:201 6, Figure 1 using Table 300 as a guide for testing with the electronic element. Some modification to the test procedure may be required along with special preparation of samples to gain access to PV element output circuits and the electronics input and output circuits. The evaluation of the electronic element shall also comply with all applicable clauses of this document and any other IEC standards specific to the type of electronic device. Some electronic devices and associated hardware require the use of other standards (such as protection, monitoring, communication systems, cabling and connectors) for requirements specific to the function of...