Inspection and Testing - End-to-end testing of a ring final circuit. AM2 CG2391
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- čas přidán 28. 05. 2022
- Hello and welcome to another video by Adrian Davey from Pure Electric.
In this video, I will be talking you through the basics of end-to-end testing of Ring Final Circuit (RFC) conductors and linking this to fault finding, as the two are intrinsically linked.
You cannot fully understand testing, unless you also understand fault finding.
The next video in this series, will talk you through the fabled figure of 8 connection on a ring, why we do it, and why it is so important.
Thank you for watching and as always, if you want more of this content, then please like, share and subscribe to enable me to help others.
Take care
Adrian
Great content, very easy to follow.
Thank you 🙏
Another cracking package to go with what has already been taught. Used as CPD these videos keep it fresh in the mind and is a welcome break from reading GN3, OSG and the regs book.
Thank you 🙏
Have you seen my new series on bonding?
@@Pure_electrical_training
I have seen the links for them, but havent got to watch them yet. I will at some point, but i am wading through CPD of webinars and training videos at the moment. Trying to fit everything in and let it sink in is a challenge in itself.
Great video
Thank you 🤗
Hello Sir, all my respect to you and your knowledge.
Thank you 🙏
really enjoying this content! Where can i find the MFT video?
Very well explained. This would help any apprentice.topman👍
Thank you Martin 🤗
Hi Adrian
Thank you for all your valuable video content, it really is appreciated 😀.
Would it be possible for you to send me the PDF of the schedule of results?
Gary
Of course, message me your email address and I will get that over to you 👍
Great video ; was just curious what code you would assign if the difference between r1 and r2 was greater than 0.05? Or likewise the difference between r1 and 1.67(r2) ? C2?
On a new install I would do further investigation to find out why. Loose termination etc.
On an EICR I would put that down as FI, further investigation required
I find that in a few apartment installations, the r2 is lower than the r1, and rN in a ring final circuit. How is this explained, and how should it be written on the EICR. Many thanks in advance.
Is this with twin and earth?
If so, that is worrying considering the r2 is 1.5mm and should be 1.67 times higher than the 2.5mm.
My only guess is that the terminations are loose.
When you measured those tests, did you do any further investigation to find the cause, as that should have been your prompt.
Hi Adrian,
I am having a few issues on identifying the types of wiring and reference method on the Generic schedule of circuit details. Can help or advise please?
The codes for the types of wiring is on the generic schedule of circuit details.
A to O.
The reference method is the installation method and is found by either, referring to the on-site guide, or BS 7671 appendix 4
How does the test work? You say electrons but what does the tester put through the circuit? I thought it only put voltage through on insulation resistance
Try this and let me know if it helps
Inspection and Testing R1 + R2 and fault finding
czcams.com/video/lQ6olO_-r9I/video.html
hi great video can i ask with this tolerance of 0.05 does that mean within 50 so it the lives were say 0.034 you would be ok within 50 of that number so anything up to 0.84
0.05 is the tolerance, not 0.5
So on a reading of 0.34, you could accept 0.39, or 0.29 and everything in between.
But, you should always question that depending on the circuit size. The smaller the circuit, the tighter the tolerance should be
Thanks understood 👍
Hi
nice vid,could yoj please send the pdf?
TNKS
Of course, if you message me through Facebook, I’ll send you the PDF 👍
m.facebook.com/groups/1290819831082412/?ref=share
can i get copy? would be updated?
Of course, if you connect with me through my Facebook, I’ll send it too you
m.facebook.com/groups/564389841900177/?ref=share