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
Help with college formula please!
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="hoppy" data-source="post: 71162" data-attributes="member: 4546"><p>Just been doing some college work.</p><p></p><p>Was calculating if supp equip bonding was required in a bathroom. The formula given for an mcb is R &lt; 50V / Ia.</p><p></p><p>Ia being the fault current for a particular mcb to disconnect in a certain time.</p><p></p><p>My question is, as there are likely to be various circuits in a bathroom, which mcb rating would you use as the calculation. Would it be the shower circuit mcb as this is likely to be the highest rated and thus require more fault current to disconnect within a certain time.</p><p></p><p>I know to the 17th, that supp bonding is not required if rcd protected and all that. This is a theory question and was just wondering what you guys thought.</p><p></p><p>Cheers</p><p></p><p>Craig</p></blockquote><p></p>
[QUOTE="hoppy, post: 71162, member: 4546"] Just been doing some college work. Was calculating if supp equip bonding was required in a bathroom. The formula given for an mcb is R < 50V / Ia. Ia being the fault current for a particular mcb to disconnect in a certain time. My question is, as there are likely to be various circuits in a bathroom, which mcb rating would you use as the calculation. Would it be the shower circuit mcb as this is likely to be the highest rated and thus require more fault current to disconnect within a certain time. I know to the 17th, that supp bonding is not required if rcd protected and all that. This is a theory question and was just wondering what you guys thought. Cheers Craig [/QUOTE]
Insert quotes…
Verification
Post reply
Main Forums
Do-It-Yourself (DIY) Question & Answer Forum
Help with college formula please!
Top