According to the National Electrical Code (NEC), standard general-purpose 120-volt convenience outlets cannot be run off a 30-amp circuit breaker in residential living areas; 30-amp breakers are strictly restricted to dedicated heavy-duty appliances like electric dryers or RV hookups using heavier 10-gauge wire. On a dedicated commercial 30-amp circuit using appropriate wiring, the number of outlets depends on load calculations, but standard residential rooms require 15 or 20-amp circuits.
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