Under California Title 24, what is the minimum electrical service size required for new single-family residential construction?
Correct Answer
C) 200 amperes
California Title 24 Part 3 (CEC Section 230.79) requires a minimum 200-ampere service for new single-family dwellings. This exceeds the National Electrical Code minimum of 100 amperes to accommodate California's energy efficiency requirements, electric vehicle charging infrastructure, and all-electric building initiatives under the state's climate goals.
Why This Is the Correct Answer
California Title 24 Part 3 (California Electrical Code Section 230.79) mandates a minimum 200-ampere electrical service for new single-family residential construction. This requirement exceeds the National Electrical Code's 100-ampere minimum to support California's energy efficiency standards, electric vehicle charging infrastructure requirements, and all-electric building initiatives. The higher capacity ensures adequate power for modern electrical loads and future electrification needs in residential buildings.
Why the Other Options Are Wrong
Option A: 150 amperes
150 amperes falls short of California's Title 24 requirements. While this capacity might handle basic residential loads, it doesn't meet the state's minimum standard of 200 amperes required for new single-family construction under the California Electrical Code.
Option B: 100 amperes
100 amperes represents the National Electrical Code minimum, but California has adopted more stringent requirements. Title 24 Part 3 requires 200 amperes for new single-family dwellings to accommodate higher electrical demands and support state energy goals.
Option D: 125 amperes
125 amperes is insufficient under California Title 24 requirements. This capacity doesn't meet the state's 200-ampere minimum for new single-family residential construction and would not adequately support modern electrical loads and California's electrification initiatives.
Memory Technique
Remember 'California 200' - California requires 200 amps for new homes, doubling the national 100-amp minimum to support the state's electric future.
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