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
Isolator for Sub Main
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="Robin Spark" data-source="post: 79416" data-attributes="member: 5444"><p>Sorry to be a pain but need to understand this properly..</p><p></p><p>Scenario</p><p></p><p>You have carried out safe isolation procedure on sub main DB everything fine so far. You now start work on this DB</p><p></p><p>Seperate cct from another DB is energised but has borrowed neutral with your submain DB that you are working upon.</p><p></p><p>Current will now obviously flow through the neutral conductor in submain DB that you are working on and potential to earth will rise, <strong>but you are saying that it wont try to backfeed through any equipment connected to this submain DB and so the Line conductors will not raise in potential against earth</strong>.</p><p></p><p>Is this right?</p></blockquote><p></p>
[QUOTE="Robin Spark, post: 79416, member: 5444"] Sorry to be a pain but need to understand this properly.. Scenario You have carried out safe isolation procedure on sub main DB everything fine so far. You now start work on this DB Seperate cct from another DB is energised but has borrowed neutral with your submain DB that you are working upon. Current will now obviously flow through the neutral conductor in submain DB that you are working on and potential to earth will rise, [B]but you are saying that it wont try to backfeed through any equipment connected to this submain DB and so the Line conductors will not raise in potential against earth[/B]. Is this right? [/QUOTE]
Insert quotes…
Verification
Post reply
Main Forums
Do-It-Yourself (DIY) Question & Answer Forum
Isolator for Sub Main
Top