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The earthing electrodes should be placed within what distance in meters from the building whose installation system is being earthed
- a)4
- b)2.5
- c)1.5
- d)0.5
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
The earthing electrodes should be placed within what distance in meter...
Various specifications in respect to earthing electrode as recommended by Indian Standards are given below.
1. An earthing electrode should not be situated (installed) close to the building whose installation system is being earthed at least more than 1.5m away.
2. The earth resistance should be low enough to cause the flow of current sufficient to operate the protective relays or blow fuses. Its value is not constant as it varies with weather because it depends on moisture (but should not be less than 1 Ohm).
3. The earth wire and earth electrode will be the same material.
4. The earthing electrode should always be placed in a vertical position inside the earth or pit so that it may be in contact with all the different earth layers.
Most Upvoted Answer
The earthing electrodes should be placed within what distance in meter...
Distance of Earthing Electrodes from Building
The distance of earthing electrodes from the building is an important factor to consider while designing an earthing system for a building. The correct distance ensures safety and effective operation of the electrical installation.
Correct Answer: Option C (1.5 meters)
Explanation:
The earthing electrodes should be placed within 1.5 meters from the building whose installation system is being earthed. This distance is specified in the Indian Electricity Rules (1956).
Reasons for the 1.5-meter distance:
1. Safety: The earthing electrodes provide a low resistance path for the fault current to flow. If the distance between the electrodes and the building is too large, the fault current may find an alternate path through the soil, which may lead to electric shock or fire hazard.
2. Effective Operation: The earthing system is designed to protect the electrical installation from overvoltage and other electrical faults. Placing the earthing electrodes within 1.5 meters ensures that the system operates effectively and provides the required protection.
Conclusion:
In conclusion, the correct distance of earthing electrodes from the building is 1.5 meters. This distance ensures safety and effective operation of the electrical installation. The distance should be adhered to while designing and installing an earthing system for a building.
The distance of earthing electrodes from the building is an important factor to consider while designing an earthing system for a building. The correct distance ensures safety and effective operation of the electrical installation.
Correct Answer: Option C (1.5 meters)
Explanation:
The earthing electrodes should be placed within 1.5 meters from the building whose installation system is being earthed. This distance is specified in the Indian Electricity Rules (1956).
Reasons for the 1.5-meter distance:
1. Safety: The earthing electrodes provide a low resistance path for the fault current to flow. If the distance between the electrodes and the building is too large, the fault current may find an alternate path through the soil, which may lead to electric shock or fire hazard.
2. Effective Operation: The earthing system is designed to protect the electrical installation from overvoltage and other electrical faults. Placing the earthing electrodes within 1.5 meters ensures that the system operates effectively and provides the required protection.
Conclusion:
In conclusion, the correct distance of earthing electrodes from the building is 1.5 meters. This distance ensures safety and effective operation of the electrical installation. The distance should be adhered to while designing and installing an earthing system for a building.
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