"Transformer-less" implies not galvanically isolated and RCB Type B applicable?
While checking technical requirements for installing hybrid inverters in South Africa, I noticed the following requirement:
"RCD (Type B) required for transformerless inverters." and repeated "RCD Type B (If not galvanically-isolated)".
So to be sure/confirm, the SunSynk Hybrid inverters designs are transformerless/switching based inverters which in theory could spill/leak DC current onto the AC side and hence the requirement to have a RCD type B?
Reference NRS 097-2-1:2017 : https://solar-support.org/files/265/dump
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The problem I have is the bond trips out the grid mcb I need it to realease before the change over. Any help ?