Testing The Lightning Earth And The Hvsc Downconductor - Lightning Protection International Guardian System 5 Installation Manual

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measure shake the Guardian CAT terminal gently to allow all moisture to escape through
the drainage holes at the base of the terminal.
4. One lead of the tester is connected to the rivet on each panel, whilst the other lead is
placed on the finial tip.
5. The same test should be applied for each of the four panels (4 tests in total).
6. The result for each panel should be greater than 2 mega ohms.
7. If one or more tests does not meet the 2 mega ohms requirements as detailed in step 6,
the Guardian CAT terminal should be removed and washed thoroughly with clean water
removing all dirt and debris.
Be sure to thoroughly dry the terminal as detailed in step 3 prior to re-testing. The
terminal can be tested while removed from the mast.
8. If the terminal still fails the test, please contact LPI or an authorised LPI agent for further
instructions.
The LPI Guardian System 5 lightning Protection System may not operate at full efficiency in
all environmental conditions ie. under ice or snow or on chimneys or exhaust stacks releasing
gasses or pollutants. For advice on dealing with these specific environments contact your local
LPI Distributor.
Testing the Lightning Earth and the HVSC
Downconductor
Use the table on page 47 to record the results following completion of the following steps.
1. Remove the waterproofing tape from the lower termination.
2. Disconnect the HVSC downconductor from the lightning earth.
3. Disconnect the structure earth bonding cable from the earth system.
4. Measure the earth resistance of the lightning earth system and record in column 3 under
the heading Earth Resistance Readings in the table provided on page 47.
5. Measure the earth resistance of the structure and record in column 4.
Document 36 II Guardian
Version 1.02
Guardian Install Manual V12.indd 47
© Copyright 2008 LPI
45
22/9/08 4:25:27 PM

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