Electrical Engineering · Earthing and Grounding
In electrical grounding systems, chemical treatment of soil is used to lower earth resistance. Which of the following substances is NOT used or suitable for soil treatment around an earth electrode?
- 1Sodium chloride (Common salt)
- 2Magnesium sulfate (Epsom salts)
- 3Sulfur hexafluoride✓
- 4Copper sulfate
Correct answer
Sulfur hexafluoride
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