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  2. Groundbed - Wikipedia

    en.wikipedia.org/wiki/Groundbed

    In cathodic protection, the anode groundbed is the arrangement of anodes in the ground or water and it provides the path for protective current to leave the anodes and enter to electrolyte. [ 6 ] High voltage direct current systems

  3. Galvanic anode - Wikipedia

    en.wikipedia.org/wiki/Galvanic_anode

    An aluminum-zinc-tin alloy called KA90 is commonly used in marine and water heater applications. [9] Zinc and aluminium are generally used in salt water, where the resistivity is generally lower and magnesium dissolves relatively quickly by reaction with water under hydrogen evolution (self-corrosion).

  4. Water heating - Wikipedia

    en.wikipedia.org/wiki/Water_heating

    Under the pre-2015 standard, a 75 US gal (280 L; 62 imp gal) gas storage water heater with a nominal input of 22 kW (75,000 BTU/h) or less was able to have an energy factor as low as 53%, while under the 2015 standard, the minimum energy factor for a 75-US-gallon gas storage tank water heater is now 74%, which can only be achieved by using ...

  5. Anode - Wikipedia

    en.wikipedia.org/wiki/Anode

    The terms anode and cathode are not defined by the voltage polarity of electrodes, but are usually defined by the direction of current through the electrode. An anode usually is the electrode of a device through which conventional current (positive charge) flows into the device from an external circuit, while a cathode usually is the electrode through which conventional current flows out of ...

  6. Cathodic protection - Wikipedia

    en.wikipedia.org/wiki/Cathodic_protection

    An impressed current cathodic protection system (ICCP) for a pipeline consists of a DC power source, often an AC powered transformer rectifier and an anode, or array of anodes buried in the ground (the anode groundbed). The DC power source would typically have a DC output of up to 50 amperes and 50 volts, but this depends on several factors ...

  7. Triode - Wikipedia

    en.wikipedia.org/wiki/Triode

    When V g = −0.5 V, the anode current will increase to 3.1 mA, lowering the anode voltage to V a = V + − 10 kΩ × 3.1 mA = 191 V (orange curve). When V g = −1.5 V, the anode current will decrease to 1.4 mA, raising the anode voltage to V a = V + − 10 kΩ × 1.4 mA = 208 V (green curve). Therefore a 1 V peak-peak signal on the input ...

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