: You are of course right that there is still a lot to do in research and that there will certainly be findings that will surprise us. What we generally call "radiation" is an extremely broad field in many different research areas, which goes far, very far beyond electromagnetic radiation and its interaction with human health. Seen in this way, what you write cannot be dismissed. When it comes specifically to the "radiation" that actually comes from transformers, it is clear that it involves electromagnetic fields. And there is not much in terms of new findings to be expected here. This field is very well illuminated and by now belongs to basic knowledge without being doubted in any even remotely significant scientific debate. The thread was about the specific question of a 630kVA transformer and its "threat potential" to the health of the OP’s family. This "threat scenario" can be excluded in the specific setting with an almost absolute certainty. A large area of "radiation" cannot be sensually perceived by humans. This leaves room for speculation, which can lead to insecurity and fear. Unfortunately, this is both a market, e.g. for news, products, as well as a method of exercising power. Keeping your eyes open is good. Allowing yourself to be intimidated by it is unhealthy.