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
Electrician Talk Forum
strange RCD tripping situation
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="binky" data-source="post: 510300" data-attributes="member: 490"><p>What we have discussed and concluded on here is that 2 RCDs is not minimising the inconvienience of a fault on 1 cct by allowing it to affect multiple ccts shared with the same RCD, ergo, to comply with which ever reg it is, we should only ever really fit RCBOs as these are widely available from any wholesaler and minimise any issues. </p><p></p><p>It's a bit like we worked out that sharing a solar system with an RCD protecting multiple ccts is also dangerous. Solar inverters are allowed upto 3 seconds to shut down in the event of loss of mains supply, so you could have run over your lawn mower cable and be getting belted for far longer than RCD trip times allow. In reality most solar inverters do trip out in times similar to RCDs, but as it isn't guaranteed, you can't rely on that to happen ergo inverters need to be on a separate RCD. In my opinion avoiding RCDs at all on inverters, by running cables to comply with that, is a better option altogther due issues with some inverters and earth leakage, plus most inverters have some form of RCD protection built in anyway. </p></blockquote><p></p>
[QUOTE="binky, post: 510300, member: 490"] What we have discussed and concluded on here is that 2 RCDs is not minimising the inconvienience of a fault on 1 cct by allowing it to affect multiple ccts shared with the same RCD, ergo, to comply with which ever reg it is, we should only ever really fit RCBOs as these are widely available from any wholesaler and minimise any issues. It's a bit like we worked out that sharing a solar system with an RCD protecting multiple ccts is also dangerous. Solar inverters are allowed upto 3 seconds to shut down in the event of loss of mains supply, so you could have run over your lawn mower cable and be getting belted for far longer than RCD trip times allow. In reality most solar inverters do trip out in times similar to RCDs, but as it isn't guaranteed, you can't rely on that to happen ergo inverters need to be on a separate RCD. In my opinion avoiding RCDs at all on inverters, by running cables to comply with that, is a better option altogther due issues with some inverters and earth leakage, plus most inverters have some form of RCD protection built in anyway. [/QUOTE]
Insert quotes…
Verification
Post reply
Main Forums
Electrician Talk Forum
strange RCD tripping situation
Top