Forums
New posts
Search forums
What's new
New posts
New media
New media comments
Latest activity
Media
New media
New comments
Search media
Members
Current visitors
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Main Forums
Do-It-Yourself (DIY) Question & Answer Forum
How is this lighting fault even possible?
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Help Support Talk Electrician Forum:
This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
Message
<blockquote data-quote="SPECIAL LOCATION" data-source="post: 547813" data-attributes="member: 250"><p>Just for the sake of anyone who may be DIY'er, Still in training, Recently qualified, Just curious.... who may be following this thread and getting a bit confused...</p><p>I will try to clarify...</p><p> </p><p>Excluding any volt-drop effects due to the cable resistance per meter of the circuit wiring...</p><p></p><p>With 99.9999% of single-phase domestic electrical installations...</p><p>in order to ensure the supply voltage is present at all of the the load(s);</p><p>Sockets / Lights / Showers / Cookers / etc.. etc.. </p><p>{Note:- with a typical light the load also needs to includes the switch, otherwise the light will stay on all the time..}</p><p></p><p>They <strong><em>MUST</em></strong> be wired in parallel with a connection onto the Live & Neutral conductors, directly back to the incoming supply..</p><p></p><p>If any loads were wired in series, they would not get the full supply voltage...</p><p>As series wiring divides the voltage.. whereas parallel wiring divides the current..</p><p> </p><p>[ This is often seen when a DIY alteration mixes switch live with permanent live..</p><p>leaving more than one room wired in series and the lamps glow dimmer due to the voltage division across the loads. ]</p><p></p><p>So every room's series connected switch & light, are wired in parallel across the supply.. </p><p>with one or more lights connected along the length of the circuit cable.</p><p><img class="smilie smilie--emoji" loading="lazy" alt="🍺" title="Beer mug :beer:" src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f37a.png" data-shortname=":beer:" /> <img class="smilie smilie--emoji" loading="lazy" alt="🍺" title="Beer mug :beer:" src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f37a.png" data-shortname=":beer:" /><img class="smilie smilie--emoji" loading="lazy" alt="🍻" title="Clinking beer mugs :beers:" src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f37b.png" data-shortname=":beers:" /><img class="smilie smilie--emoji" loading="lazy" alt="🍺" title="Beer mug :beer:" src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f37a.png" data-shortname=":beer:" /></p></blockquote><p></p>
[QUOTE="SPECIAL LOCATION, post: 547813, member: 250"] Just for the sake of anyone who may be DIY'er, Still in training, Recently qualified, Just curious.... who may be following this thread and getting a bit confused... I will try to clarify... Excluding any volt-drop effects due to the cable resistance per meter of the circuit wiring... With 99.9999% of single-phase domestic electrical installations... in order to ensure the supply voltage is present at all of the the load(s); Sockets / Lights / Showers / Cookers / etc.. etc.. {Note:- with a typical light the load also needs to includes the switch, otherwise the light will stay on all the time..} They [B][I]MUST[/I][/B] be wired in parallel with a connection onto the Live & Neutral conductors, directly back to the incoming supply.. If any loads were wired in series, they would not get the full supply voltage... As series wiring divides the voltage.. whereas parallel wiring divides the current.. [ This is often seen when a DIY alteration mixes switch live with permanent live.. leaving more than one room wired in series and the lamps glow dimmer due to the voltage division across the loads. ] So every room's series connected switch & light, are wired in parallel across the supply.. with one or more lights connected along the length of the circuit cable. 🍺 🍺🍻🍺 [/QUOTE]
Insert quotes…
Verification
Post reply
Main Forums
Do-It-Yourself (DIY) Question & Answer Forum
How is this lighting fault even possible?
Top