Residential Electric Service Entrance Diagram. Service size service entrance conduit per iecnec service entrance conductors see notes below grounding service cu only riser entrance run residential 1φ 3w 120240v all other services 100 amps 2 inch see 16 1 ½ or 2 inch 4 cu 3 cu 8 2 al 1 al 200 amps 2 ½ inch see 16 2 inch 20 cu 30 cu 4 2 ½ inch 40 al 250 kcm al 320400 amps 3 inch see 16. When the project is complete the temporary service is replaced by permanent service.
Why is there only one place to land any neutrals. Certain city ordinances prohibit the company from supplying electric service to a customer until a certificate of inspection and acceptance or green tag has been issued by the city inspector. Btu does not however assume any duty of inspecting the customers wiring apparatus.
The following paragraphs pertain to service entrance wiring attachments to service drops.
Service entrance overhead single three phase 100 200 320400 amp 1. Electric service installation requirements 2 i. I think i would understand the utility throwing their hands in the air if theres no place to connect. 11 residential electric and gas meters should bot h be located on the same side of the home within the front 13 to aid meter reading testing and se rvice and to aid emergency response in the event of a fire or some other hazardous condition.