electrode

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  1. J

    Electrode resistance

    Hi Guys, need to know if electrode resistance is the actual reading for Ze on TT systems. If not how do I go about getting the right results? Thanks
  2. I

    Megger MFT 1553

    Hi Guys and Girlies, Looking for advice on using this meter (Megger MFT 1553) for doing EET to find resistance of earth rod on a generator. looking for Ω and Ka.
  3. S

    Earth Electrode Testing

    Hi I have just joined this forum after discovering it through a search engine. I have a question as regards to testing an earth spike. I have completed a new installation but would like to test the earth electrode resistance before the supply authority comes to connect the power/metering etc...
  4. I

    Earth Electrode Tester Advice

    Hi Guys, I use a megger MFT1553 for general testing and will use an EET a few times a year, dont want to invest to much in buying one. Has anyone come across this or should I leave well alone...
  5. T

    Ze and Zs Readings on TT Installation

    I have a Ze measurement on a TT installation of 134 ohms but the Zs measurement I'm getting on the ring is 25 ohms. Measured R1 + R2 on the ring is 0.82 ohms. If Zs = Ze + (R1 + R2) could someone please explain why my readings do not stack up with the formula? Have I taken a wrong reading or...
  6. W

    Earth electrode on TT System - can it run overhead on catenary wire ?

    Hi All , After looking at installation in an old cottage with TT Supply I have found that i need to install a new earth electrode and wire back to the consumer unit . However physically the only way to get the earth electrode in the ground would mean cabling the earth electrode overhead for a...
  7. Z

    Testing Earth Electrode with low Ohm Meter

    Using a low ohm meter (or multimeter)Is it possible to place 1 probe on the incomming earth at the CU and the other probe on (disconnected) earth rod to get the resistance of the rod (minus the external earth path which forms part of the Ze, wander leads etc). I know its not the correct...
    • zion
    • Thread
    • aus earth electricians' talk electrode instrument meter method probe reading testing
    • Replies: 1
    • Forum: Australia
  8. I

    Earth Electrode Result

    Hi, Had to spike a generator down to a Sheet pile today on river side. Welder cleaned up pile and welded a 12mm bolt to it for me which I connected to, I used ELIT to do test as you would do a Ze reading as I was not sure how to do EET as there was no ground for me to spike to, I got a...
  9. S

    TN-C-S and earth electrode?

    Why would someone want to go and put one in on a PME system? On a closer examination, I noticed that the main earthing conductor had been removed from the PME cut-out! So, had the spark who installed this electrode just gone straight in, done a Zs which appeared excessively high without...
  10. brs73

    electrode virgin???

    hello there i'm installing an earth electrode for a three bed house thats never had an earth!!!! i just wanna know if i definately need a 100ma time delay rcd(100 quid?!) i've already got a 100a main switch/63a 30ma rcd/63a 30ma rcd split wylex 17th distribution board is it absoloutly neccesary...
  11. S

    TT system testing

    Hi-just a quick one? I do a lot of testing but i dont often test TT systems.Am i right in saying that the earth electrode reading i get goes in the earting sytem section and not the ze box.does the ze box get n/a entered.i test using method 2 with a multifunction tester[Fluke].is there any regs...
  12. M

    earth electrode

    hi every one. does any one know if an earth electrode can be put inside of a building. thanks
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