3 votes
Accepted

Safely grounding 120V AC device

It's correct that the ground (earth) should always be connected without any means of disconnecting it. So it must indeed bypass the switch. The only thing that seems to be missing from your build is a ...
Jonathan S.'s user avatar
  • 18.8k
2 votes

Safely grounding 120V AC device

For this sort of thing I like to use an IEC C14 inlet, with a built in switch and fuse holder. Something like this. That has spade connectors on the inside, and insulated female connectors are easy ...
Chris H's user avatar
  • 2,611
2 votes

Safely grounding 120V AC device

Use a good metal chassis that is connected to AC mains ground so if any fault occurs (wires break or something shorts to ground). Use a fuse or a breaker so if there is any over current (a short will ...
Voltage Spike's user avatar
  • 82.6k
2 votes
Accepted

Earthing connections in cascaded UK mains power supply

Inside I noticed that the earth wire was connected to the negative voltage outputs of both converters which I think, but am not 100% sure, is not right. I'm assuming the LV-to-HV converter is a non-...
Rohat Kılıç's user avatar
1 vote
Accepted

How unequal current flow is created?

In many localities, electric power is distributed through a multi-grounded neutral distribution system. Every so often along a set of distribution wires, the neutral wire is grounded. The reason for ...
Math Keeps Me Busy's user avatar
1 vote

Programmable current-limit on mains

I'm fixing my laptops power bricks. Keeping some current flowing would allow me to locate short circuits much more easily. Every laptop power brick out there internally runs on DC. The first thing it ...
Kuba hasn't forgotten Monica's user avatar
1 vote

Programmable current-limit on mains

As you describe, using an incandescent light bulb and connecting it in series with the Line conductor does limit FAULT current. However, I think you misunderstand the point of such a test. It ...
Dereck's user avatar
  • 370

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