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Dorchester Center, MA 02124
The Amperage of the current flowing through is more important than the supply’s voltage. All things being equal, 230V will be equal to the current. It’s dangerous to have 230V.
Modern day power systems like those found in North America are very dangerous because the heart beats at a very low Frequency. The heart will stop if the blood doesn’t get to the lungs.
Human beings are normally able to detect sounds in the range of 20-20,000 hertz, but low frequencies can damage hearing. Even though we can’t hear them, they can affect the ear.
The earth’s natural frequencies are around 7 Hz. Anything above this is not good. DC electricity is not harmful to people. AC electricity is harmful. It’s quite a bit above the earth’s 7hertz.
The measurement of how often an electrical signal crosses a zero point in one second is not dangerous.
I think you mean 60 GHz or 60 billionhertz. The answer is the same, except where humans can hear sound at higher frequencies. The earth’s natural frequencies are around 7 Hz. Anything above this is not good.
A 230v 50Hz supply with a moderate to low source impedance is dangerous because it can cause a heart rhythm problem. A 12v 50Hz source is benign.
The way copper wires are ranked is different to how aluminum wires are ranked. The 50 Amp aluminum wire should be used with the No. AWG of 4. The larger the wire, the smaller the number.
What gauge should I use?
If you want to use copper wiring with a 200 Amp service, you need to use a 4 AWG wire. The standard for wire gages in the US is AWG. The next option is either aluminum or copper.
The rule of thumb is that you need a gauge wire size of 10. You can use a 10 gauge wire for 30 Amps, but you can’t use a 12 or 14 AWG because it can’t handle it.
The 6 AWG copper building wire was purchased by Steve. I put a 100A box in the new shop but am only feeding it from a 50A breaker in the main panel. My loads will be much less than that, as well as a compressor and vacuum, for example.
1000 kcmil aluminum wire will have a voltage drop under 3% for a 400 foot run of direct buried cable and a 200VAC electrical service. At the end of the SEC run, we have 192 Amps.