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
Sparking socket
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="Phoenix" data-source="post: 519017" data-attributes="member: 8133"><p>If you look on the left hand side of the second picture, you can see a 'bite' mising out of the side of the two copper bars that take Live and Neutral from the switch to the socket contacts, this has where it has flashed across and you can see in the picture above heat damage on the plastic from this. Somehting must have facilitated the arc to strike, maybe condenstation mixed with dust, pure condensed water shouldn't do it, but if dust was present then the wet dusty residue could easily do it. Once an arc is struck there is a propensity for it to try and continue, the air itself becomes conductive as it becomes ionised. Obviously at this point the cirucity breaker opens to disconnect the circuit (which indecentally causes an arc in that as it opens, but this gets channelled down an 'arc chute' where it is is down out to a series of smaller arcs between plates which are widened and cooled until it goes out - fuses are more simple, they are packed with sand which occupies the space where the fuse element was in order to break the arc)</p></blockquote><p></p>
[QUOTE="Phoenix, post: 519017, member: 8133"] If you look on the left hand side of the second picture, you can see a 'bite' mising out of the side of the two copper bars that take Live and Neutral from the switch to the socket contacts, this has where it has flashed across and you can see in the picture above heat damage on the plastic from this. Somehting must have facilitated the arc to strike, maybe condenstation mixed with dust, pure condensed water shouldn't do it, but if dust was present then the wet dusty residue could easily do it. Once an arc is struck there is a propensity for it to try and continue, the air itself becomes conductive as it becomes ionised. Obviously at this point the cirucity breaker opens to disconnect the circuit (which indecentally causes an arc in that as it opens, but this gets channelled down an 'arc chute' where it is is down out to a series of smaller arcs between plates which are widened and cooled until it goes out - fuses are more simple, they are packed with sand which occupies the space where the fuse element was in order to break the arc) [/QUOTE]
Insert quotes…
Verification
Post reply
Main Forums
Do-It-Yourself (DIY) Question & Answer Forum
Sparking socket
Top