railway RRB JE (CBT I + CBT II) Mock Test 2024 Estimation and Costing IE Rules

If a building wiring consists of 10 points of 60-Watts lamps and 2 fans of 100 Watts each. Determine the permissible insulation resistance to earth for a 240 V system of supply

1

0.36 MΩ

2

0.12 MΩ

3

0.42 MΩ

4

0.18 MΩ

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