@Abacus @dannnielll: thanks for your help in understanding the UK system. I am being investigating a bit: Ring circuit - DIYWiki. I am not a home owner here so I can not change the wall double socket of my room to shucko as recommended by the audio consultants. My idea is connect the power schucko strip with cord included, with is German, swaping the plugs. That power strip has overvoltage and lighting protection. Would suffice having that protection plus fuse in the plug in order to have my hifi electronics secure? they will be using schucko power cords without fuses. I am opened a new threat because the moderator of the one where I met you both among others has locked it for good.