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Low Earth Orbit
Lighting & Electrical
Why An Open Neutral Kills 120V Devices
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<blockquote data-quote="Jason Lavoie" data-source="post: 58738" data-attributes="member: 159"><p>Re: The Test</p><p></p><p>PM sent</p><p></p><p>PS: for those who are hoping we're both wrong, or are doing the exercise for the educational value (highly recommended). you don't have to calculate the current at all. treat S1-4/S5-10 as a resistor divider (when S5 is open) and multiply the ratio by 240V to figure out what portion of the 240V each half gets</p><p>of course, the point of the exercise is that once S5 is closed (neutral properly bonded) it is no longer a divider, and each side gets 120V regardless of how many lights are on.</p><p></p><p>Jason</p></blockquote><p></p>
[QUOTE="Jason Lavoie, post: 58738, member: 159"] Re: The Test PM sent PS: for those who are hoping we're both wrong, or are doing the exercise for the educational value (highly recommended). you don't have to calculate the current at all. treat S1-4/S5-10 as a resistor divider (when S5 is open) and multiply the ratio by 240V to figure out what portion of the 240V each half gets of course, the point of the exercise is that once S5 is closed (neutral properly bonded) it is no longer a divider, and each side gets 120V regardless of how many lights are on. Jason [/QUOTE]
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Why An Open Neutral Kills 120V Devices
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