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The insulation resistance of a installation between conductor to conductor should not be less than
  • a)
    50 mega-ohms/no. of outlets
  • b)
    60 mega-ohms/no. of outlets
  • c)
    25 mega-ohms/no. of outlets
  • d)
    30 mega-ohms/no. of outlets
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
The insulation resistance of a installation between conductor to condu...
Insulation Resistance of Installation

The insulation resistance of an installation is a measure of the effectiveness of the insulation between conductors in preventing current leakage. It is important to maintain a high insulation resistance to ensure the safety and proper functioning of electrical equipment.

Formula

The insulation resistance can be calculated using the formula:

Insulation Resistance = Voltage Applied / Current Leakage

Where voltage applied is the voltage used to measure the insulation resistance and current leakage is the current that flows through the insulation.

Minimum Insulation Resistance

According to the Indian Electricity Rules, the minimum insulation resistance of an installation between conductor to conductor should not be less than 50 mega-ohms divided by the number of outlets. This means that for every outlet, the insulation resistance should be at least 50 mega-ohms.

For example, if there are 10 outlets in an installation, the minimum insulation resistance should be 5 mega-ohms (50 mega-ohms divided by 10 outlets).

This minimum value is set to ensure that the insulation is effective in preventing current leakage and to avoid potential safety hazards.

Conclusion

In conclusion, the insulation resistance of an installation is an important factor in ensuring the safety and proper functioning of electrical equipment. The minimum insulation resistance between conductor to conductor should not be less than 50 mega-ohms divided by the number of outlets, as per Indian Electricity Rules.
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