In any event, given the lack of meaningful technical data on the SR fuses I don’t think anyone can provide an answer to this question with any kind of certaintyGiven this when playing around with mains voltages, I’m saying it’s better to be safe than sorry.
I understand that you have "no qualms" personally yourself doing it as your capable of monitoring it. But surely your not giving the go ahead to other to do it as well, as it is mains safety issue were talking about.
Cheers George