Low voltage Definition and 56 Threads

In electrical engineering, low voltage is a relative term, the definition varying by context. Different definitions are used in electric power transmission and distribution, and electrical safety codes define "low voltage" circuits that are exempt from the protection required at higher voltages. These definitions vary by country and specific codes or regulations.

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  1. wolram

    Lacquer for waterproofing low voltage circuits

    surprisingly low voltage circuits still function fully submersed in water if they are protected with some coating. They only fail when this coating breaks down. Now if this submersion in water is not a designed feature (accidental), is there some standard for the protection material? How...
  2. Z

    Wiring a 110V Fan with Low Voltage Thermostat: A Beginner's Guide

    I am trying to control a 110V fan with a low voltage thermostat. I am pretty new to electrical theory... I would like a basic description of what I need and how to properly wire it. Thanks!
  3. T

    Low Voltage Galvanic Cell Troubleshooting

    I had to make a galvanic cell for my chemistry class and it was supposed to have a voltage of 2.3 but for some reason it only was .5. My cell was comprised of a iron and aluminim electrode with the respective nitrates.( potassium nitrate salt bridge) it was wondering if anybody knew why it would...
  4. B

    Where Do Input Terminals Go in a Low Voltage Indicator Circuit?

    I can't understand where to put the input terminals in this circuit. can you help me with this...
  5. C

    Very low voltage drop transistor

    I'd like to construct a fast-reacting current overload protection device. And rather than use a FET as a short to blow a fuse I'd rather just use a semiconductor in series that I can open on overload. This is similar in operation to some "intelligent circuit breakers" based on a Intra...
  6. Arctic Fox

    Creating High Amps, Low Voltage

    I understand it's possible to create high voltages (low amps) with a Tesla Coil. How would I go about creating high amps yet on low voltages? IE: 1000a @ 3-6v
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