Not a test I have had to undertake often, so this video will be a massive help to refresh the memory in future! You’re probably the best RU-vid Spark for informative content that looks awesome 👌 watched all your content and I’ve adopted a lot of the things you do into my own skill set which has helped me massively as an apprentice!
I used to fit mats 4ft square copper dig a big hole all rods and plates only work if soil is damp with plates we put sink waste pipes into ground for watering in dry weather
Only just had to use this sort of tester at work this week for doing lightning protection testing. Lucky you have a nice open area to drive your test stakes in for your video
I went with a cheaper tester as testing can be done with as you say by 3 methods, my luck get called to a TT install with a fault no power (Fuse pulled) and what looks like a disconnected Earth Rod! Didn't do the job in the end because no one knew who pulled the fuse or why and other issues! But I would have been in a pickle not being able to prove the TT earth was sound prior to the Supplier (DNO had no contact and stated that without knowing why the fuse was pulled they would not reinstate) coming out and who knows when they would turn up! Would probably need to be there when they came.
Fantastic video mate. Good reference material to go back on as this test is not one of the common ones and not many sparks could tell you how to do it. Calculations towards the end got a bit complex with the percentage deviation but how you explained it was great. Well done fella. Enjoy your content. 👍🏻👍🏻👍🏻
look st the reason behind the test its to find if your intentional earthing rod position is placed at higher resitance postion than other possible ground at a much lower resistance. In real life we place them where they wont be disturbed and have a loop value below a 100 ohms 😀. ( the condu disk project you did i would see a calculated average being of more value than this over kill method for a single ground stake 🧐)
Mate it’s literally the preferred test method in guidance note for testing earth electrode systems, it’s also great for determining rod location, same principals. The purpose of the video was to educate others on how to conduct the test, if anything the simpler the installation, the easier to get the knowledge across.
@@residualelectrical Yes all good but i think the purpose of this test is to find the best location for the ground rod as far as impedence but there other considerations as well such as location it wont be distubred or provide a hazzard.
@adriatikkrasniqi1453 Hi. Can you please provide an analysis of your calculations - Thank you. I make it: max deviation from average 16.56 - 16.20 = 0.36 then (100/16.56) x 0.36 = 2.17% which is close to Mike’s result!
@@adriatikkrasniqi1453 Thank you for your swift reply. Using Mikes readings: Highest 16.84 - Average 16.56 ---------- 0.28 Further using your wording: ‘Then divide by the highest’ 0.28/16.84=0.01662708 ??????????? Your detailed calculations using Mikes readings would be appreciated - Many Thanks.
@@fje1948 I the end of the day is good to contribute with this calculation for us as learners maybe I am wrong Mike calculation I could be right I don’t but he to explain the calculation.
