1. In this article RCD types explained it says that any electronics or inverter motors will potentially leak DC current into your AC network and blind AC type RCD's.
They are obsolete and even are prohibited to use in some countries.
In Thailand on the other hand one would struggle to find a top brand RCD other than type AC.
Can someone clarify whether DC current leakage is a real issue with average domestic installation? Eg. lots of led lighting, computer, laptops, inverter AC's, fridge, induction hob etc.
Is it worth getting mid-range Chinese type A or B RCD's instead of top brand (ABB, Schneider) type AC ones?
What if I plan to go solar? Does it change things?
2. Another question I have is related to sizing breakers.
I'm going to use reference method A (first column). Is it correct for wires in conduit running through AAC blocks?
3. Should we cover wire capacity from the table with (1) breaker nominal rating or with (2) breaker tolerance rating of 113% or 145%?
Does it change with planned continuous vs noncontinuous load?
