Electrical Engineering · Earthing Systems
When a pipe electrode is used for earthing, the length of the pipe should be at least _______, whereas when a plate electrode is used, the depth/dimension of the plate installation should meet the minimum requirements of at least _______.
- 11.5 m, 1.5 m
- 22.5 m, 1.5 m✓
- 31.5 m, 2.5 m
- 42.5 m, 2.5 m
Correct answer
2.5 m, 1.5 m
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