“Draw a North American residential electrical single line diagram with a 120/240 V utility service, 200 A meter and main disconnect, service panel, electric range, dryer, kitchen GFCI receptacles, bedroom AFCI lighting, and garage GFCI receptacles.”
図の背後にある意思決定を読み解く。
Meter socket and service disconnect establish the dwelling’s main rating.
The range and dryer use 240 V branch breakers.
Kitchen and garage receptacles have ground-fault protection.
Bedroom lighting is shown on an arc-fault-protected circuit.
Branch conductor sizes are visible at each load.
Use this for a conventional detached home under North American practice. Local code determines the final AFCI, GFCI, service, and conductor requirements.
よくある質問
Why are range and dryer breakers two-pole?
They supply 240 V loads from both service legs and disconnect both ungrounded conductors together.
What is the difference between GFCI and AFCI?
GFCI protection responds to ground-fault current, while AFCI protection detects hazardous arcing patterns.
Is this a permit-ready panel schedule?
No. It is a single line; a permit set normally also needs load calculations and a detailed panel schedule.