Talk:Voltage drop

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To all of the contributors of this page, Many thanks. Bare with me as I try to flesh out the article a litte and blend it with other electrical articles. As a mewbie, I would appreciate a few remarks on how best to use the TALP pagess.

The NEC does NOT specify voltage drop! It only recommends such. It does specify ampacity for certain installations using some cables. Sorry, but I am not familiar with practices outside of the United States. Charles E Muhleman, Huntsville IN.

Correct: Art 90.5 explains the "enforcability" of the various language: (A) Mandatory Rules contain the words shall or shall not. (B) Permissive Rules contain the words shall be permitted or shall not be required. (C) Explanatory Material such as includes references to other standards, related other rules of the Code, etc are contained in fine print notes (FPNs). All references to voltage drop in the NEC are found in FPNs ONLY!

[edit] Measurement of Voltage drop

My electrician scoffed at me when I measured voltage drop on a 15 amp circuit (14 awg wire, 100 ft long) using a hairdryer as mentioned in this article. Are there any expert sources that can confirm this as a reliable measure of voltage drop? —The preceding unsigned comment was added by Cynoscion (talk • contribs) 16:30, 13 December 2006 (UTC). Cynoscion 17:22, 13 December 2006 (UTC) Cynoscion

[edit] Voltage Drop in DC circuit

I found your explaination of voltage drop in DC circuits a bit confusing and convoluted. It is probably best understood by those that already know what voltage drop means.

I suggest a simplified example with a circuit that a layman (like me) can understand.

Consider a series circuit with a 9 volt power supply and 3 resistors being 67 ohms, 100 ohms, 470 ohms respectively. If you measured the voltage accross each individual resistor in the circuit you would get the voltage drop for each resistor.

Kirchoffs law states that the sum of the voltage drops will total the supplied voltage of 9 volts.

You would expect the strongest resistor of 470 ohms to show the largest voltage drop. Why? Explain it. This circuit would be simple enough for most to understand.

Suggest you rewrite your version with the basic series circuit just described before someone else does....good luck. —Preceding unsigned comment added by Howartthou (talk • contribs) 10:31, 3 March 2008 (UTC)


[edit] Drawing/Graphic

It is, to me, entirely unclear what the point of the unlabelled, unexplained, unprofessional and hardly referenced drawing in the article is. I believe it is more confusing than helpful. —Preceding unsigned comment added by 82.113.106.16 (talk) 02:00, 6 March 2008 (UTC)