code

4.5 Sizing of Service and All Electric Homes The minimum service entrance shall be 100 amperes with a 3-wire, 120/240 volt, single-phase service with a grounded neutral. The nominal size of wire used with a 100 amp service shall be No. 4 copper; for a 200 amp service, the nominal size shall be No. 2 copper. The service entrance cable shall have the same rating (amperage) as the meter base and the service equipment. If the service entrance is to be replaced, a calculation of the usage or load within the dwelling shall be completed to assist in determining the appropriate size. The service entrance shall be properly sized for after Rehabilitation capacity. Room-by-room specifications noting electrical outlets and fixtures shall be included in the scope of work. Nameplate ratings of all appliances shall be reviewed for actual VA ratings. If the calculation falls at or near 100 amps, the service shall be increased to 200 amps. All Electric Homes: Homes equipped with all electric appliances shall be equipped with no less than a 200 amp service. Main Service Panel: Panels shall be in proper working condition with no evidence of overheating, arcing, corrosion, or failure. The panel shall bear the UL label and shall be marked as suitable for service equipment. Any panels identified as substandard by the U.S. Consumer Product Safety Commission shall be replaced. Panels with evidence of malfunction or deterioration shall be replaced. 4.6 Material and Equipment Installation All materials, components, and equipment shall be listed or labeled by a qualified electrical products testing laboratory such as “UL” or “CSA.” Listed materials, components, and equipment shall be installed per the intended use and location and per the manufacturer’s installation instructions. 4.7 Grounding All electrical systems shall consist of a single phase 3-wire grounded neutral service entrance and shall provide system grounding and equipment grounding protection. The service panel shall be connected to the grounding electrode system and to an 8’ galvanized or copper clad steel ground rod. All electrical panels shall meet the bonding requirements of the National Electrical Code (NEC).