Telecom Tower Grounding Test Equipment — Annual Audit Workflow

The Tower-Grounding Constraint

A cellular BTS or microwave repeater cannot have its grounding electrode disconnected for testing — the rectifier needs the ground reference 24/7. Telecom tower grounding test equipment must therefore work in clamp-on stake-less mode for routine audits, with 4-pole capability available for new-build acceptance.

Step 1: Pre-Audit Documentation

• Tower ID, GPS coordinates.
• Soil type (sandy, clay, lateritic).
• Last audit date and reading.
• Lightning strike count (if surge counter installed).

Step 2: Clamp-On Loop Resistance Survey

Clamp the EK-C300 jaw around each ground riser at the tower base. Reading appears in 30 seconds — no stakes, no de-energising. Log readings at:

1. Tower leg 1 riser.
2. Tower leg 2 riser.
3. Tower leg 3 riser.
4. Equipment cabinet ground bar.
5. Surge protector pigtail.

Step 3: Comparison to Design Value

Pass criterion typically < 5 Ω for towers with lightning protection; < 1 Ω for high-strike-density installations.

Step 4: 4-Pole Verification (Annual)

Once a year, also do a full 4-pole fall-of-potential at one tower leg as a cross-check on the clamp-on readings. Discrepancy > 20 % triggers electrode investigation.

Step 5: Soil Resistivity (If Failure)

If tower fails the readings, use Wenner 4-pole soil resistivity to determine if more electrodes or chemical treatment is needed.

Step 6: Documentation Output

• EK-C300 internal memory (1000 records).
• USB CSV export with timestamp + GPS.
• Annual fleet report by region.

EK Recommendation

The EK-C300 covers clamp-on, 4-pole, and Wenner from one instrument. Talk to EK service teams for telecom-fleet rollout.