Glossary of electrical terms - Revision history

https://www.designingbuildings.co.uk/w/index.php?action=history&feed=atom&title=Glossary_of_electrical_terms Glossary of electrical terms - Revision history 2026-05-14T15:34:43Z Revision history for this page on the wiki MediaWiki 1.17.4 https://www.designingbuildings.co.uk/w/index.php?title=Glossary_of_electrical_terms&diff=182065&oldid=prev Designing Buildings at 08:30, 15 November 2020 2020-11-15T08:30:50Z

<p></p> <table style="background-color: white; color:black;"> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr valign='top'> <td colspan='2' style="background-color: white; color:black;">← Older revision</td> <td colspan='2' style="background-color: white; color:black;">Revision as of 08:30, 15 November 2020</td> </tr><tr><td colspan="2" class="diff-lineno">Line 209:</td> <td colspan="2" class="diff-lineno">Line 209:</td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* [https://electricalschool.org/ Electrical School]</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* [https://electricalschool.org/ Electrical School]</div></td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>[[Category:<del class="diffchange diffchange-inline">Definitions</del>]] [[Category:DCN_Definition]] [[Category:Theory]]</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>[[Category:<ins class="diffchange diffchange-inline">DCN_Collection</ins>]] [[Category:DCN_Definition<ins class="diffchange diffchange-inline">]] [[Category:DCN_Guidance]] [[Category:Definitions</ins>]] [[Category:Theory]]</div></td></tr> </table>

Designing Buildings https://www.designingbuildings.co.uk/w/index.php?title=Glossary_of_electrical_terms&diff=147552&oldid=prev Designing Buildings at 07:54, 17 November 2019 2019-11-17T07:54:54Z

<p></p> <table style="background-color: white; color:black;"> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr valign='top'> <td colspan='2' style="background-color: white; color:black;">← Older revision</td> <td colspan='2' style="background-color: white; color:black;">Revision as of 07:54, 17 November 2019</td> </tr><tr><td colspan="2" class="diff-lineno">Line 209:</td> <td colspan="2" class="diff-lineno">Line 209:</td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* [https://electricalschool.org/ Electrical School]</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* [https://electricalschool.org/ Electrical School]</div></td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>[[Category:Theory]]</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">[[Category:Definitions]] [[Category:DCN_Definition]] </ins>[[Category:Theory]]</div></td></tr> </table>

Designing Buildings https://www.designingbuildings.co.uk/w/index.php?title=Glossary_of_electrical_terms&diff=131862&oldid=prev Editor at 12:53, 1 April 2019 2019-04-01T12:53:47Z

<p></p> <table style="background-color: white; color:black;"> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr valign='top'> <td colspan='2' style="background-color: white; color:black;">← Older revision</td> <td colspan='2' style="background-color: white; color:black;">Revision as of 12:53, 1 April 2019</td> </tr><tr><td colspan="2" class="diff-lineno">Line 206:</td> <td colspan="2" class="diff-lineno">Line 206:</td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Other useful links:</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Other useful links:</div></td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr> <tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">* Articles by the Electrical Contractors' Association (ECA).</ins></div></td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* [https://electricalschool.org/ Electrical School]</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* [https://electricalschool.org/ Electrical School]</div></td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category:Theory]]</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category:Theory]]</div></td></tr> </table>

Editor https://www.designingbuildings.co.uk/w/index.php?title=Glossary_of_electrical_terms&diff=123342&oldid=prev Designing Buildings at 10:13, 21 December 2018 2018-12-21T10:13:19Z

<p></p> <table style="background-color: white; color:black;"> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr valign='top'> <td colspan='2' style="background-color: white; color:black;">← Older revision</td> <td colspan='2' style="background-color: white; color:black;">Revision as of 10:13, 21 December 2018</td> </tr><tr><td colspan="2" class="diff-lineno">Line 72:</td> <td colspan="2" class="diff-lineno">Line 72:</td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Light output measured in lumens per watt (lm/W).</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Light output measured in lumens per watt (lm/W).</div></td></tr> <tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr> <tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">-----</ins></div></td></tr> <tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">Electromagnetic field</ins></div></td></tr> <tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr> <tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">A field of force associated with electric charge in motion, which has both electric and magnetic components and contains electromagnetic energy.</ins></div></td></tr> <tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr> <tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">See: Electromagnetic field for more information.</ins></div></td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>-----</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>-----</div></td></tr> </table>

Designing Buildings https://www.designingbuildings.co.uk/w/index.php?title=Glossary_of_electrical_terms&diff=118658&oldid=prev Simon Baxter at 14:58, 19 October 2018 2018-10-19T14:58:04Z

<p></p> <table style="background-color: white; color:black;"> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr valign='top'> <td colspan='2' style="background-color: white; color:black;">← Older revision</td> <td colspan='2' style="background-color: white; color:black;">Revision as of 14:58, 19 October 2018</td> </tr><tr><td colspan="2" class="diff-lineno">Line 197:</td> <td colspan="2" class="diff-lineno">Line 197:</td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>-----</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>-----</div></td></tr> <tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">Other useful links:</ins></div></td></tr> <tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr> <tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">* [https://electricalschool.org/ Electrical School]</ins></div></td></tr> <tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category:Theory]]</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category:Theory]]</div></td></tr> </table>

Simon Baxter https://www.designingbuildings.co.uk/w/index.php?title=Glossary_of_electrical_terms&diff=118074&oldid=prev Designing Buildings at 10:58, 12 October 2018 2018-10-12T10:58:23Z

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Designing Buildings https://www.designingbuildings.co.uk/w/index.php?title=Glossary_of_electrical_terms&diff=93185&oldid=prev Editor at 11:55, 12 December 2017 2017-12-12T11:55:25Z

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Editor https://www.designingbuildings.co.uk/w/index.php?title=Glossary_of_electrical_terms&diff=88539&oldid=prev Designing Buildings at 10:57, 10 October 2017 2017-10-10T10:57:02Z

<p></p> <table style="background-color: white; color:black;"> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr valign='top'> <td colspan='2' style="background-color: white; color:black;">← Older revision</td> <td colspan='2' style="background-color: white; color:black;">Revision as of 10:57, 10 October 2017</td> </tr><tr><td colspan="2" class="diff-lineno">Line 114:</td> <td colspan="2" class="diff-lineno">Line 114:</td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>a measure of the power used by the computing equipment in a Data Centre compared to the total Data Centre demand. A PUE of 2 means that half of the total power supplied to the Data Centre (including cooling, lighting, fans etc.) is used by the computing equipment; ideally it should be 1.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>a measure of the power used by the computing equipment in a Data Centre compared to the total Data Centre demand. A PUE of 2 means that half of the total power supplied to the Data Centre (including cooling, lighting, fans etc.) is used by the computing equipment; ideally it should be 1.</div></td></tr> <tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr> <tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">Protected circuit.</ins></div></td></tr> <tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr> <tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">An electrical circuit protected against fire.</ins></div></td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Pulse Width Modulation (PWM):</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Pulse Width Modulation (PWM):</div></td></tr> </table>

Designing Buildings https://www.designingbuildings.co.uk/w/index.php?title=Glossary_of_electrical_terms&diff=78211&oldid=prev Editor at 11:32, 23 May 2017 2017-05-23T11:32:05Z

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Editor https://www.designingbuildings.co.uk/w/index.php?title=Glossary_of_electrical_terms&diff=62349&oldid=prev Designing Buildings at 08:04, 30 October 2016 2016-10-30T08:04:44Z

<p></p> <table style="background-color: white; color:black;"> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr valign='top'> <td colspan='2' style="background-color: white; color:black;">← Older revision</td> <td colspan='2' style="background-color: white; color:black;">Revision as of 08:04, 30 October 2016</td> </tr><tr><td colspan="2" class="diff-lineno">Line 1:</td> <td colspan="2" class="diff-lineno">Line 1:</td></tr> <tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">Ampere: Ampere is a unit of electric current equal to the flow of one coulomb per second.</ins></div></td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del class="diffchange diffchange-inline">Ampere</del>: <del class="diffchange diffchange-inline">Ampere is a unit of electric current equal to the flow of one coulomb per second</del>.<del class="diffchange diffchange-inline"><br/></del></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">Approved document R</ins>: <ins class="diffchange diffchange-inline">Physical infrastructure for high-speed electronic communication networks</ins>.</div></td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Big Data: Big Data is both a general term for the expected explosion in data as more interactions take place over the Internet and a more specific term in the information and communications technology (ICT) sector referring to data sets that are too large or too complex to be handled by commonly available software tools.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Big Data: Big Data is both a general term for the expected explosion in data as more interactions take place over the Internet and a more specific term in the information and communications technology (ICT) sector referring to data sets that are too large or too complex to be handled by commonly available software tools.</div></td></tr> <tr><td colspan="2" class="diff-lineno">Line 74:</td> <td colspan="2" class="diff-lineno">Line 75:</td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Watt: a Watt is a measure of power and is equivalent to one Joule per Second corresponding to the rate of consumption in a circuit where the potential difference is one Volt and a current of one Ampere flows.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Watt: a Watt is a measure of power and is equivalent to one Joule per Second corresponding to the rate of consumption in a circuit where the potential difference is one Volt and a current of one Ampere flows.</div></td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>----</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>----<ins class="diffchange diffchange-inline">-</ins></div></td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div> </div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>This article was created by --[[User<ins class="diffchange diffchange-inline">:BRE_Group</ins>|BRE]]. It was taken from The future of electricity in domestic buildings, a review, by Andrew Williams, published in November 2014.</div></td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>This article was created by --[[User<del class="diffchange diffchange-inline">%3ABRE%20Group</del>|BRE]]. It was taken from The future of electricity in domestic buildings, a review, by Andrew Williams, published in November 2014.<del class="diffchange diffchange-inline"><br/></del></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div></div></td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div> </div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div></div></td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del class="diffchange diffchange-inline">----</del></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div></div></td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr> <tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">-----</ins></div></td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category:Theory]]</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category:Theory]]</div></td></tr> </table>

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