lightning-protection-system-inspection-work-steel-mill-lat-lum-kaeo-district,-pathum-thani-province

The picture shows cleaning of the lightning rod head.

 Lightning rod, LIVA brand, model LAP DX250, first and second trees, 8 meter high pole, installed on a tile roof.

The picture shows the test of lightning rod head no. 1.

Test with a test meter. LG4H-0205 reads BFFI value of 11 units, more than OFFSET value of 5 units, lightning rod test results can be used.

The picture shows the test of the 2nd lightning rod head.

Test with a test meter. LG4H-0205 read the BFFI value as 9 units, which is 5 units higher than the OFFSET value. Test results: The lightning rod head can be used.

Pillar – pillar base

from physical examination The pole has no corrosion. The pole is upright. But the rain cover is easy to rust and corrode. May cause rainwater leakage.

Suggestions: You should replace the rainproof cover at the base of the pole.

The picture shows the electrical continuity test of the grounding wire.

Check the ground conductor with the FLUKE 2042T Cable Locator. The conductor has electrical continuity. Can be used

The picture shows checking the resistance test box.

Resistance test box (Test Box) from physical inspection The internal equipment is complete and can be used.

The picture shows the test of the lightning counter.

Lightning counter, brand LIVA, model LSC-LX01, from the inspection of the lightning counter. complete equipment There is no additional counting.

Tested with a tester, the count increased 1 time, from the original count of number 8 to the count of number 9 (due to testing with a tester from the manufacturer).

The picture shows a ground resistance measurement test.

 Measured to test the resistance of the grounding system, the readings were 1.20 ohms and 2.10 ohms, within standard limits.

Recommendation: You should measure and test the operation of the lightning rod, grounding wire, and grounding system. Keep it in a ready-to-use condition every year.