Transcription of 1. Soil Resistivity Testing - lightningman.com.au
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1. Soil Resistivity Testing - lightningman.com.au
Earthing Techniques 1. soil Resistivity THEORY OF soil MAKING A MEASUREMENT .. 4 soil Resistivity Testing PROCEDURE GUIDELINES .. (a) Test (b) Selection of Test Method Type .. (c) Traverse Locations.. (d) Spacing (e) Practical Testing 10 2. INTERPRETATION AND MODELLING OF RESULT ..11 APPARENT Resistivity CALCULATION .. 11 INTERPRETATION OF Resistivity 12 3. HOW TO DESIGN A LIGHTNING EARTH SYSTEM ..14 TYPES OF EARTH ELECTRODES .. 14 COMMON EARTHING SYSTEMS .. 14 EARTH RESISTANCE OF AN ELECTRODE - CALCULATION .. 16 Rods Driven Vertically into the 16 Rod Electrodes in Parallel .. 16 Trench Electrodes - Horizontal Electrodes buried under the 17 Radial Conductors.
1.3.2 soil resistivity testing procedure guidelines The purpose of resistivity testing is to obtain a set of measurements which may be interpreted to yield an equivalent model for the electrical performance of the earth, as seen by the particular earthing system.
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