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Earth Testers

Earth testers, also called earth resistance testers, are specialised electrical test and measurement tools used in electrical engineering to evaluate the integrity of grounding systems. They measure the resistance between an electrical system or device and the Earth, which is critical for ensuring safety, proper equipment functioning, and compliance with electrical regulations.

Purpose/Function of Earth Testers

The primary purpose of an earth tester is to verify that the grounding systems of electrical installations meet specified standards. These standards typically dictate the maximum allowable resistance between the grounding system and the Earth. By measuring this resistance, earth resistance testers help identify any potential issues, such as poor connections, corrosion, or inadequate grounding, which could lead to electrical hazards or equipment damage.

Popular Types of Earth Testers

There are several types of earth testers available, including:

  • Fall-of-Potential Testers – These are the most common type of earth testers and involve driving stakes into the ground to create a circuit between the earth electrode under test and a remote earth electrode. They measure the voltage drop between these two points to calculate the earth's resistance.
  • Clamp-On Testers – These testers are non-invasive and do not require driving stakes into the ground. Instead, they use a clamp to encircle the earth electrode, quickly measuring the magnetic field induced by the current flowing through the electrode. 
  • Selective Testers – Selective testers are designed to measure the resistance of individual earth electrodes within a grounding system. They allow engineers to pinpoint specific issues within complex grounding networks.

Versatile Applications of Earth Testers

Earth testers find applications in various industries and settings, including:

  • Electrical Installations
  • Telecommunications & IT
  • Construction
  • Maintenance Tasks
  • Power Generation and Distribution
  • Lightning Protection Systems.

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Chauvin Arnoux
Rohs Verified
P01126511, Chauvin Arnoux
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£ 6350.03
Chauvin Arnoux
Rohs Verified
P01299930, Chauvin Arnoux
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£ 8342.84
Sefram
Rohs Verified
MW9322, Sefram
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£ 321.69
Chauvin Arnoux
P01122015, Chauvin Arnoux
2 In Stock
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£ 1134.39
RS PRO
Rohs Verified
203-5535, RS PRO
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£ 812.14
Chauvin Arnoux
Rohs Verified
P01102025, Chauvin Arnoux
1 In Stock
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£ 549.85
Chauvin Arnoux
P01126506, Chauvin Arnoux
2 In Stock
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£ 1426.29
Chauvin Arnoux
Rohs Verified
P01126505, Chauvin Arnoux
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£ 2084.75
FLUKE-1623-2 KIT, Fluke
6 In Stock
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£ 2632.00
Chauvin Arnoux
Rohs Verified
P01299918, Chauvin Arnoux
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£ 1163.05
RS PRO
Rohs Verified
123-2339, RS PRO
35 In Stock
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£ 248.47
Chauvin Arnoux
P01122018, Chauvin Arnoux
1 In Stock
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£ 1291.27
Chauvin Arnoux
Rohs Verified
P01102022, Chauvin Arnoux
2 In Stock
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£ 279.07
Chauvin Arnoux
P01122016, Chauvin Arnoux
1 In Stock
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£ 1368.21
Chauvin Arnoux
P01299919, Chauvin Arnoux
2 In Stock
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£ 1385.55
FLUKE-1630-2 FC, Fluke
2 In Stock
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£ 1620.50
FLUKE-1625-2 KIT, Fluke
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£ 3718.75
FLUKE-1623-2, Fluke
2 In Stock
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£ 1588.13
Chauvin Arnoux
Rohs Verified
P01126504, Chauvin Arnoux
1 In Stock
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£ 3634.73
RS PRO
Rohs Verified
203-5536, RS PRO
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£ 831.39
RS Pro
Rohs Verified
123-2238, RS Pro
34 In Stock
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£ 202.10
Megger
1000-761, Megger
1 In Stock
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£ 1383.20
Chauvin Arnoux
Rohs Verified
P01102044, Chauvin Arnoux
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£ 7980.66
Chauvin Arnoux
Rohs Verified
P01126510, Chauvin Arnoux
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£ 6110.62
FLUKE-1625-2, Fluke
1 In Stock
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£ 2553.25
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FAQs
We offer free shipping for orders over £200 if delivery is in the UK. All other orders in the UK, shipping from £7.99 depending on the weight and measurement. Mainland Europe shipping charges start from £25. For all other countries shipping charges start from £50 for products like Earth Testers and all others.
You can email us directly at sales@enrgtech.co.uk or via our website for any queries regarding Earth Testers or any other product.
This depends on the Earth Testers individual product and information that can be found on our website.
Yes, we offer special discounts on orders above £200 for Earth Testers and all other products.
UK orders normally take between 2/3 working days. International orders normally take between 3/5 working days for all products including Earth Testers.
Yes. We keep updating our stock frequently and if a product like Earth Testers is not in stock then we will let you know.