Yes , small leaks will be discharged to the “ Earth “ . Shorting or big leaks will blow the fuse and trip the MCB because the “ current “ discharge will be high .
To stop the tingling effect , if it is 2 pin plug then an earth wire connected to the appliance or device stops the tingling effect .
The ideal role of earthing/grounding is to create a short circuit to ground before a human being touches the faulty appliance, thereby tripping the MCB. Everyone should have an RCCB (residual current circuit breaker) more than even ground as it detects even a very small (~30 mA) imbalance between phase and neutral, but it works best with a ground connection.
Yes you can put a bare aluminium wire, in my house I have 3 aluminium solid bare wires going into the meter box area and one solid copper bare wire for stuff which is connected to sensitive items like my computer, EV charger etc.
But from meter box to DB box and to all of the house its connected by insulated copper wire going inside the conduit pipes.
You cannot pull bare solid earth wire inside conduit pipes without breaking other wires with in it nor is it possible to bend them inside conduit pipes.
All leaks should go to earth.
The fuse is thin because they are designed to breakaway after they glow red hot by extreme temperature. That is why fuse wire is in a ceramic/porcelain holder.
It’s illegal in India to combine neutral and earth in the house. Even though the neutral is the nothing but earth connection for the transformer supplying the area.
This will cause your house to act as the nearest earth for the neighborhood or your neutral and make neutral even more lethal at your house, since electricity will flow in the path of nearest and least resistance.
I never said combine . I said if one experiences tingling effect with SMPS power supplies ,then it is because there is no earth . I am not comfortable with the tingling effect on my desktop , so I earth the desktop at the DC voltage side .
how do you earth at dc side if the house is missing earthing?
Not the house . Most chargers come with 2 pins , monitors come with 2 pins and tiny desktops come with 2 pin plugs .
In that case I run the earth to the body of the device or if the body is made of plastic then I connect the earth wire to the barrel jack outer with a wire . I have a separate earth running for my desk and a couple of other places like Audio cabinet etc .
and where does that earth wire leads to?
To a steel pole into the earth on the other side of the house .
I see, so that is basically earthing for a house but smaller version of it…
Yes , it helps dump the miniscule voltages to be dumped and I am guessing there might be stray EMI and AC voltage present as well with these DC power supplies .
I have a class D amp and after earthing the body , I feel much comfortable . May be even the sound is better .
Most amplifiers suffer from grounding problems if not done properly and having a separate earth makes it better .
Ok. DC side grounding I too have done it mostly on older power supplies or cheap ones, usually the measured voltage from DC side negative to earth for power supplies that give a tingling shock will be around half the AC mains voltage on DC side.
[UPDATE] Got an update from the electrician. It seems there is some problem with the DG wiring which is causing some back voltage. There are 3 shops inside the apartment which is not terminated by an ACCL. Not sure if there is something inducing on the wiring when the DG is OFF. It seems to affect the whole apartment block paneling. He seems to have corrected it and showed it via his tester that nothing is lighting up. I am yet to test inside my house though.