If the connected light load in a house is 3000W and power sub-circuit load 6000W, then what is the total number of sub-circuits required?

• A. 1
• B. 3
• C. 6
• D. 4

Answer: (C)

Indian Electricity Rules specify that the maximum load on a light/fan sub-circuit should not exceed 800 watts and the number of points should be limited to 10.
Hence for light load number of sub-circuit = 3000/800 = 3.75 = 4
Indian Electricity Rules specify that the maximum load on a power sub-circuit should not exceed 3000 watts and the number of outlets should be limited to two.
For the power sub-circuit load number of sub-circuit = 6000/3000 = 2
Total subcircuit = 4 + 2 = 6