earth resistance

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  1. P

    Soil earth resistance survey

    Has anyone here got experience of doing a soil / earth resistance survey for the design of a large-ish site? We might be looking at a fenced area of 150 x 40m or so with possible need for lightning protection and/or input to the decision to have the substation within the site or far enough out...
  2. B

    Low earth resistance continuity test

    I’ve just carried out a continuity test on a rfc. And I’m getting a lower earth resistance Reading than the reading on both the live and neutral wires. its a circuit in a house converted into two flats and the circuit is wired in 2.5/1.5 twin and earth. Live and neutral are both 0.46 earth is...
  3. Still got Ze of 50.2ohms....

    Still got Ze of 50.2ohms....

    Think this might not be up to expectations
    • ShortSpark
    • Media item
    • earth resistance earth rod
    • Comments: 0
    • Category: Electricians on Video Sites
  4. N

    earthing scheme suitable for worst/large value of soil resistivity in order to get earth resistance value below 5 ohm?

    i don't the exact value of the soil resistivity as no survey of soil sample is carried out at the site .However Copper earthing electrode 50mm diameter of 2.5 m is driven where its circumference were filled with chemical compound power to the height of rod and earth resistance was found to be...
    • Navaraj
    • Thread
    • below earth earth resistance earthing get order resistance scheme suitable value
    • Replies: 5
    • Forum: UK Electrical Forum
  5. P

    LED light, switching /earth issue

    Hi, I have an LED landing light, which has 9 G9 LED bulbs. The unit has two switches, one upstairs and one downstairs. Ive found that when the upstairs switch is in the closed circuit position, but the light is off due to the downstairs switch being in the open position, there is still a very...
  6. L

    200 Ohm ?

    Hi Everyone , I'm always confused that One ohm or less is a must for circuits supplied by a company earth . But when its an Earth Rod then up to 200 Ohm is acceptable ... Surely the rod is much inferior so should be less acceptable resistance .. I know we now have RCD's but Rods were in place...
  7. Axnfell

    Advice Wanted - VERY High Earth Resistance Problem

    I have been doing some tests around our property here and I cannot get the earth resistance test to get anywhere lower than 1.86k, even started tested now up to 30 meters away from the property and still cannot get any lower readings. Any advice would be greatful. Kind Regards James
  8. P

    Earth Resistance checking without removing earth cable from earth pit

    Hai all, What will happen if I didn't remove the earth cable from earth pit while taking earth Resistance. Is that mandatary to remove the earth cable from pit while taking resistance using earth tester
  9. Sintra

    Earth Resistance Testing

    Sintra submitted a new resource: Earth Resistance Testing - Earth Resistance Testing Read more about this resource...
    • Sintra
    • Thread
    • earth earth resistance plain quote resistance resource testing
    • Replies: 0
    • Forum: UK Electrical Forum
  10. rolyberkin

    Earth Resistance Tester

    Any suggestions on an earth resistance tester which will not break the bank? Anyone got or used one of these UNI-T UT521 Digital Earth Resistance Tester
  11. W

    Substation High Earth resistance

    Hi All, I have a theory, that in a small village with 2 substations, one substation has a good earth connection but the other has a high earth connection. Some of the houses in the village use TT systems, the houses connected to substation 1 have a Ze of approx 6 ohms. The houses connected to...
    • weston
    • Thread
    • aus earth earth resistance resistance substation
    • Replies: 10
    • Forum: Australia
  12. S

    Earth Resistance Testing courtesy of Megger

    This might be of interest... http://www.biddlemegger.com/biddle-ug/GettingDownToEarth-MC.pdf
    • Silly Sausage
    • Thread
    • aus earth earth resistance megger resistance testing
    • Replies: 4
    • Forum: Australia

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