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Questions related to the design of circuits that supply or use a high voltage. There are a few definitions but the IEC definition of a high-voltage supply system is above 1000 Vrms AC or 1500 V DC.

10 votes
7 answers
13k views

How to hook up a mains voltage relay?

This will be my first attempt to control a 110v device (high voltage, by my standards!). Initial tests will be on a table lamp; eventual target may be a small 500W heater. How should I wire the 110 …
Mark Harrison's user avatar
14 votes
2 answers
29k views

Is it safe to disassemble an unpowered PC power supply?

Once a typical PC power is unplugged, is there any danger of receiving a shock while disassembling it? Are there typically high voltages stored that one should be aware of? context: removing a cooli …
Mark Harrison's user avatar