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Ac Confusion
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<blockquote data-quote="Sidewinder" data-source="post: 393190" data-attributes="member: 9512"><p>ac current in a UK distribution system varies between +/- 230V.</p><p></p><p>It's NOT dc between 0 (earth) voltage &amp; + 230V.</p><p></p><p>It DOES flow "back and fore" between line &amp; neutral.</p><p></p><p>Yes, neutral is connected to earth at the local Tx, and several other places possibly, or not depending on the design of the supply network.</p><p></p><p>As Andy says if your "electricians" really believe exactly what you have related in your post, then if you employ them, please sack them all tomorrow as they are incompetent! <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite9" alt=":eek:" title="Eek! :eek:" loading="lazy" data-shortname=":eek:" /> </p><p></p><p>Remember, neural is a LIVE conductor as it carries the same current as the phase or line conductor.</p><p></p><p>Thus any current flowing in the line is equal to that in the neutral.</p><p></p><p>Thus a breaker is only required in the line.</p><p></p><p>If the circuit is overloaded for some reason disconnecting the line conductor will make the circuit safer than disconnecting the neutral conductor even though both carry the same currents.</p></blockquote><p></p>
[QUOTE="Sidewinder, post: 393190, member: 9512"] ac current in a UK distribution system varies between +/- 230V. It's NOT dc between 0 (earth) voltage & + 230V. It DOES flow "back and fore" between line & neutral. Yes, neutral is connected to earth at the local Tx, and several other places possibly, or not depending on the design of the supply network. As Andy says if your "electricians" really believe exactly what you have related in your post, then if you employ them, please sack them all tomorrow as they are incompetent! :o Remember, neural is a LIVE conductor as it carries the same current as the phase or line conductor. Thus any current flowing in the line is equal to that in the neutral. Thus a breaker is only required in the line. If the circuit is overloaded for some reason disconnecting the line conductor will make the circuit safer than disconnecting the neutral conductor even though both carry the same currents. [/QUOTE]
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