In preparation and discussion since 2016, the ABNT 16690:2019 standard finally had its definitive version published last Thursday, 03/10/2019.
According to the summary available on the ABNT website: “This Standard establishes the design requirements for electrical installations of photovoltaic arrays, including provisions on conductors, electrical protection devices, switching devices, grounding and equipotentialization of the photovoltaic array.
The scope of this Standard includes all parts of the photovoltaic array up to, but not including, energy storage devices, power conditioning units or loads. An exception is that provisions relating to power conditioning units and/or batteries are only addressed where the safety of the photovoltaic array installations is involved. The interconnection of small direct current power conditioning units for connection to one or two photovoltaic modules is also included in the scope of this Standard."
Although it was not yet official, many Brazilian professionals had already been using the text of the draft standard that was under public consultation. Furthermore, Brazilian projects could be guided, even in the absence of an official Brazilian text, by the international standard IEC/TS 62548, on which its Brazilian analogue ABNT 16690:2019 was based.
The standard is available for purchase and on the ABNT page: https://bit.ly/30fS8k5
