@@sparkyhelp3997 I'm redoing just the practical part of testing course next week. I didn't find one of the 3 faults. It was on a socket radial. All I can think of is I missed n to e and perhaps that was it. On a light circuit there was no continuity from l through switch to lamp. The same instructor had made a mistake with one of the other candidates
A truly amazing channel. This chap has made my learning and understanding so much easier. He refrains from using click bait or silly gimmicks to attract viewers, instead he offers excellent content delivered in an easy to understand manner for those of us currently learning/studying. Thanks @SparkyHelp
At time 6:05 I noticed your Ze reading was 0.39. What type of earthing arrangement did you have. It I have it right if this is a TN C show should be below 0.35. So if this indeed the case what do you do about this as is nothing to do with the installation it is an issue with the DNO. Would they investigate we expected to install an earth rod. Would we keep both earths or convert it completely to TT? Thanks for the video.
Hi, you are quite correct, if it is a TNC-S installation for a 100A supply 0.35ohms is the max at the origin. If this is higher it should be reported to the person ordering the work who should take it up with their DNO. I have been told in the past to treat the installation as a TT... obviously check the meter is working fine first (ie calibration) Thank you for watching.
Hi, In this video, you mentioned that the test meter you're using measures the voltage and sends out a test current. Can you expand on that please? Remember you're testing a live supply, why is there a need to send out a test current?
it's an earth fault loop test, so to test it put out a current to earth (hence why it will in some cases trip an RCD). Lots of meters have a high and low setting (ie value of current). With a known voltage and current, an ohmic value can be established. Hope that helps, Please Like Share & Subscribe
excellent videos, good work, Thanks
Glad you like them!
Excellent clips.
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@@sparkyhelp3997 I'm redoing just the practical part of testing course next week. I didn't find one of the 3 faults. It was on a socket radial. All I can think of is I missed n to e and perhaps that was it. On a light circuit there was no continuity from l through switch to lamp. The same instructor had made a mistake with one of the other candidates
Well good Luck, just be methodical in your approach.
A truly amazing channel. This chap has made my learning and understanding so much easier. He refrains from using click bait or silly gimmicks to attract viewers, instead he offers excellent content delivered in an easy to understand manner for those of us currently learning/studying. Thanks @SparkyHelp
Great to hear, Thankyou.
Excellent work. Nice teaching. Does your Fluke meter measure Zs at socket outlets?
Thank you and Yes it does
@@sparkyhelp3997 g
Very much appreciated Stuart
Thank you, please share.
informative vid as always, cheers
Glad to help, please share - Thankyou
At time 6:05 I noticed your Ze reading was 0.39. What type of earthing arrangement did you have. It I have it right if this is a TN C show should be below 0.35. So if this indeed the case what do you do about this as is nothing to do with the installation it is an issue with the DNO. Would they investigate we expected to install an earth rod. Would we keep both earths or convert it completely to TT? Thanks for the video.
Hi, you are quite correct, if it is a TNC-S installation for a 100A supply 0.35ohms is the max at the origin. If this is higher it should be reported to the person ordering the work who should take it up with their DNO. I have been told in the past to treat the installation as a TT... obviously check the meter is working fine first (ie calibration)
Thank you for watching.
@@sparkyhelp3997 thanks for the response.
@@sparkyhelp3997 You mean if you've reported high ohms at origin the DNO response has been to treat the installation like a TT? Interesting.
Good one!
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Hi, In this video, you mentioned that the test meter you're using measures the voltage and sends out a test current. Can you expand on that please? Remember you're testing a live supply, why is there a need to send out a test current?
it's an earth fault loop test, so to test it put out a current to earth (hence why it will in some cases trip an RCD). Lots of meters have a high and low setting (ie value of current). With a known voltage and current, an ohmic value can be established.
Hope that helps, Please Like Share & Subscribe
Good work. 👍
Thanks 👍
Great work but you don't mention what setting to have the tester on..
Sorry for that, i should have made it clearer at 5:34 the Fluke is set to loop 'Z'. Hope that helps. Please, Like Share & Subscribe.
Thanks! Ps, Fluke or Megger Sir.
Many Thanks, in this video I used a Fluke, however Megger has its advantages.
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