Now a 12 volt car battery is dc, and even though it has say 90 amps,(cheap batt) it won't kill you. go grab the neg and positive teminals, you won't feel a thing.
Of coarse, it isn't anything like the 660,000 volt dc transmission lines I play with, But if you are stupid enough to think household ac voltage isn't high voltage, even 120, you are just a right circumstance away from dead.
“High voltage” can mean a lot of things according to this Wiki article.
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In electric power transmission engineering, high voltage is usually considered any voltage over approximately 35,000 volts.
The International Electrotechnical Commission and its national counterparts (IEE, IEEE, VDE, etc.) define high voltage circuits as those with more than 1000 V for alternating current and at least 1500 V for direct current, and distinguish it from low voltage (50–1000 V AC or 120–1500 V DC) and extra low voltage (<50 V AC or <120 V DC) circuits. This is in the context of the safety of electrical apparatus.
In the United States 2005 National Electrical Code (NEC), high voltage is any voltage over 600 V (article 490.2). Laypersons may consider household mains circuits (100–250 V AC), which carry the highest and most dangerous voltages they normally encounter, to be high voltage. For example, an installer of heating, ventilation and air conditioning equipment may be licenced to install 24 Volt control circuits, but may not be permitted to connect the 240 volt power circuits of the equipment.
Voltages over approximately 50 volts can usually cause dangerous amounts of current to flow through a human being touching two points of a circuit, so safety standards generally are more restrictive where the chance of contact with such high voltage circuits exists.
In digital electronics, a high voltage is the one that represents a logic 1 (1.1–5 V).
No, sorry, but 220 is not considered high voltage. I agree, it’s certainly enough to kill, but so is one volt. It’s still not considered high voltage by power transmission professionals.