A residential building is being constructed with a 200A main service. What is the maximum voltage drop allowed for the service conductors according to the 2024 IRC?

ICC E1 exam practice question · Services

A residential building is being constructed with a 200A main service. What is the maximum voltage drop allowed for the service conductors according to the 2024 IRC?

A5%
B7%
10%
D12%

Exam tip

Be aware of voltage drop limitations to ensure proper system performance.

Why C is correct

According to 2024 International Residential Code 210.11(A), the maximum voltage drop for service conductors is 10%. The options of 5% (option a), 7% (option b), and 12% (option d) are not in compliance with the code.

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A residential building is being constructed with a 200A main service. What is the maximum voltage drop allowed for the service conductors according to the 2024 IRC?

A residential building is being constructed with a 200A main service. What is the maximum voltage drop allowed for the service conductors according to the 2024 IRC?

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