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Hiya,
I live in a pretty old apartment in Japan. There's only one wall in the whole apartment that has a screw to allow to connect a power cable to an earth. I run quite a few electrical devices and I want to earth as many as possible, so i bought a little black power hub (with 5 sockets) which allows for 3 pin connection, and then that plugs into the wall and I screw that to the earth. I failed science though, so I have a few questions!
1. If the power hub is earthed at the wall, will other appliances be earthed as long as i connect them to that power hub? Even with 2 pin connections? Or does every single appliance need to be earthed individually?
2. I don't know if it is safe to plug in 2/3 pin plugs ( unearthed) into a power hub that's earthed at the wall, but it seemed like when I plugged in an extension cord into that power hub, the same very low, continuous electric shock could be felt - just an unsettling phsyical sensation, like a buzzing feeling and distinct disruption of mood. Is that possible - like plugging directly into the earthed power hub would be okay because that's earthed at the wall, but plugging an amp into an extension cable that feeds into that earthed power hub is just one degree too far from the earth or something and thus still a shock hazard? I'm sorry I'm not more scientifically literate (adhd had me flunking all sciences and math!)
3. regarding electric shocks, I'm mainly noticing like an unsettling feeling and my heart rate racing a bit whenever I plug in anything over 100w to a white extension cable (with 6 unearthed ports, that isn't connected to the earth on the wall). I obviously don't want that to happen, but it's happened now with 2 amps that I plugged into a separate extension cable that wasn't earthed. Is that likely a fault with that particular extension cable? Or can I just not afford to plug anything in to a wall that doesn't connect to the one earthed port in my house?
4. For my safety I will desist from using any 100+ watt amps for the time being, the unearthed it was always fine with a 45w speaker, so I wonder if my old apartment is just failing to provide safe current unearthed, or whether that the white extension cable (with 6 unearthed ports) is faulty?
5. Is it possible that the individual amps are faulty, or is it too much of a coincidence that they're both over 100w and the only things in my house causing problems? I do have a guitar amp plugged in elsewhere, but again that's only 40 watts. Wondering if my whole apartment is just too old to handle anything going above 100w.
6. Sorry, i'm an idiot, I also just realized ive been using a 7a plug instead of the manual's recommended 10a, could that have created some crazy current feedback loop or something that created a continual very light shock to be dispersed from today's speaker amp?
Thank you so much and I'm sorry for my ignorance and myriad questions!
All the best.
Georgie
I live in a pretty old apartment in Japan. There's only one wall in the whole apartment that has a screw to allow to connect a power cable to an earth. I run quite a few electrical devices and I want to earth as many as possible, so i bought a little black power hub (with 5 sockets) which allows for 3 pin connection, and then that plugs into the wall and I screw that to the earth. I failed science though, so I have a few questions!
1. If the power hub is earthed at the wall, will other appliances be earthed as long as i connect them to that power hub? Even with 2 pin connections? Or does every single appliance need to be earthed individually?
2. I don't know if it is safe to plug in 2/3 pin plugs ( unearthed) into a power hub that's earthed at the wall, but it seemed like when I plugged in an extension cord into that power hub, the same very low, continuous electric shock could be felt - just an unsettling phsyical sensation, like a buzzing feeling and distinct disruption of mood. Is that possible - like plugging directly into the earthed power hub would be okay because that's earthed at the wall, but plugging an amp into an extension cable that feeds into that earthed power hub is just one degree too far from the earth or something and thus still a shock hazard? I'm sorry I'm not more scientifically literate (adhd had me flunking all sciences and math!)
3. regarding electric shocks, I'm mainly noticing like an unsettling feeling and my heart rate racing a bit whenever I plug in anything over 100w to a white extension cable (with 6 unearthed ports, that isn't connected to the earth on the wall). I obviously don't want that to happen, but it's happened now with 2 amps that I plugged into a separate extension cable that wasn't earthed. Is that likely a fault with that particular extension cable? Or can I just not afford to plug anything in to a wall that doesn't connect to the one earthed port in my house?
4. For my safety I will desist from using any 100+ watt amps for the time being, the unearthed it was always fine with a 45w speaker, so I wonder if my old apartment is just failing to provide safe current unearthed, or whether that the white extension cable (with 6 unearthed ports) is faulty?
5. Is it possible that the individual amps are faulty, or is it too much of a coincidence that they're both over 100w and the only things in my house causing problems? I do have a guitar amp plugged in elsewhere, but again that's only 40 watts. Wondering if my whole apartment is just too old to handle anything going above 100w.
6. Sorry, i'm an idiot, I also just realized ive been using a 7a plug instead of the manual's recommended 10a, could that have created some crazy current feedback loop or something that created a continual very light shock to be dispersed from today's speaker amp?
Thank you so much and I'm sorry for my ignorance and myriad questions!
All the best.
Georgie
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