Annual earth pit testing record

Earth Pit Test and Maintenance Register Format, Free PDF

A register for sites with many earth pits: one line each for location, type, measured resistance, limit, result, maintenance and next test date, with a checklist for each visit.

  • Free
  • No sign-up
  • A4, 2 pages
  • Formulas and limits included
Preview of the Earth Pit Test and Maintenance Register form
Download the PDF formA4, 2 pages

Print it at 100 % on A4. Page 1 is the form you fill in. The next page is the worksheet and reference.

Need the instrument?

What is inside

  • A 14-line register with pit number, location, type, reading, limit, pass or fail, water, salt or fix done, and next test due
  • A summary block for pits tested, passed, failed and not accessible, and sign-off lines
  • Commonly quoted earth resistance targets by type of installation, shown as guides
  • An eight-point visit checklist covering the cover, water pipe, fill, connections, test link and marking
  • Method notes on testing one pit, seasonal change, clamp readings and test frequency

How it was checked

The earth resistance targets (0.5, 1, 2, 5 and 10 Ω) are commonly quoted from IS 3043 and similar references, written as guides: use the strictest value that applies to the equipment on the pit. The register does not include a calculation, so there are no numbers to verify beyond that.

Related

Common questions

How often should earth pits be tested?

At least once a year, and at the driest time of year if you can, because resistance rises in dry weather. Test again after earth faults and after any work near the pit.

What earth resistance is acceptable?

It depends on the installation. Commonly quoted targets are about 0.5 Ω for large power stations, 1 Ω for major substations, 2 Ω for small substations and 5 Ω for general electrical earthing. Always use the strictest value in your specification.

Using the form

  • Limits and constants come from the standards named above, as commonly quoted. Check them against the edition you work to, and use the stricter of those and your specification.
  • Where a value is a common guide rather than a limit from a standard, the form says so.
  • This is a calculation aid for qualified people. It does not replace the standard, the instrument manual or your site safety procedure.

More test report forms

Insulation Resistance Test Report

IEEE 43-2013 timed test

Earth Resistance and Soil Resistivity Report

IEEE 81 fall-of-potential and Wenner methods

Overcurrent Relay Secondary Injection Report

IEC 60255-151 inverse-time characteristics

Transformer Oil BDV Test Report

Dielectric strength of insulating oil, IEC 60156 style

See all 12 forms →

Need the instrument as well?

CIE supplies insulation testers, earth testers, oil BDV testers, micro-ohm meters and relay test sets, with test certificate available on request.

Request a Quote View Products