While measuring the insulation resistance of complete wiring installation to earth using Megger, the resistance measured must not be less than:
1
(50 MΩ)/(no. of outlets (Point + switches))
2
(500 MΩ)/(no. of outlets (Point +switches))
3
(50 kΩ)/(no. of outlets (Point + switches))
4
25 MΩ