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
Electrical Inspection & Testing Forum
Zs = Ze +(R1 + R2) Where am I going Wrong
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="a1spark" data-source="post: 72073" data-attributes="member: 2229"><p>gazza.</p><p></p><p>if ZE = 11 ohms and R1=R2 = 0.4 ohms then ZS =11.4 ohms surely ?</p><p></p><p>You mention you have installed a 32A circuit .this will almost certainly require a 30mA RCD...you only mention 100mA [Main switch].</p><p></p><p>With a 30mA RCD the max Zs permissable becomes 1667 ohms.......see Reg. 411.5 and table 41.5</p></blockquote><p></p>
[QUOTE="a1spark, post: 72073, member: 2229"] gazza. if ZE = 11 ohms and R1=R2 = 0.4 ohms then ZS =11.4 ohms surely ? You mention you have installed a 32A circuit .this will almost certainly require a 30mA RCD...you only mention 100mA [Main switch]. With a 30mA RCD the max Zs permissable becomes 1667 ohms.......see Reg. 411.5 and table 41.5 [/QUOTE]
Insert quotes…
Verification
Post reply
Main Forums
Electrical Inspection & Testing Forum
Zs = Ze +(R1 + R2) Where am I going Wrong
Top