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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?
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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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it depends on the length of the conductor the capacitance of the line is proportional to the length of the transmission line their effect is negligible on the performance of short having a length less than 80 km and low voltage transmission accidents of the transmission line along with the conductances forms the shunted mittens the conductance and the transmission line is because of the leakage over the surface of the conductor considered a line consisting of two conductors and be each of radius are the distance between the conductors being Des shown in the diagram below minus the potential difference between the conductors and via's work QA charge on conductor QB charge on conductor vvab pencil difference between conductor and the Epsilon minus absolute primitivity QA plus QV = 0 so that QA equals QB - equals DBA equals data equals DB equals our substituting these values and voltage equation we get the capacitance between the conductors is cab is referred to as lying to line capacitance if the two conductors are in VR oppositely charge then the potential difference between them is zero then the potential of each conductor is given by one half bath the capacitance between each conductor and point of zero potential and is capacitive CN is called the capacitance to neut or capacitance to ground capacitance cab is the combination of two equal capacity and VN series thus capacitance to neutral is twice the capacitance between the conductors IE CN equals to Cave the absolute primitivity Epsilon is given by Epsilon equals epsilono Epsilon are where epsilano is the permittivity of the free space and Epsilon or is the relative primitivity of the medium prayer capacitance reactants between one conductor and neutral capacitance of the symmetrical three phase line let a balanced system of voltage be applied to a symmetrical three-phase line shown below the phasor diagram of the three phase line with equilateral spacing is shown below take the voltage of conductor to neutral as a reference phaser the potential difference between conductor and we can be written the similarly potential difference between conductors and sea is on adding equations one and two we get also combining equation three and four from equation 6 and 7 the line to neutral capacitance the capacitance of symmetrical three phase line is same as that of the two wire line Related: Capacitance of Transmission Lines?

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The insulation resistance of a installation between conductor to conductor should not be less thana)50 mega-ohms/no. of outletsb)60 mega-ohms/no. of outletsc)25 mega-ohms/no. of outletsd)30 mega-ohms/no. of outletsCorrect answer is option 'A'. Can you explain this answer?
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