Example No. D11 Mobile Home (See 550.18)

A mobile home floor is 70 ft. by 10 ft. and has two small appliance circuits; a 1000-VA, 240-V heater; a 200-VA, 120-V exhaust fan; a 400-VA, 120-V dishwasher; and a 7000-VA electric range.

Lighting and Small Appliance Load

Lighting (70 ft. x 10 ft. x 3 VA per ft.2)	2100 VA
Small appliance (1500 VA x 2 circuits)	3000 VA
Laundry (1500 VA x 1 circuit)	1500 VA
Subtotal	6600 VA
First 3000 VA at 100%	3000 VA
Remainder (6600 VA - 3000 VA) at 35%	1260 VA
Total	4260 VA

Amperes per Leg

	Leg A	Leg B
Lighting and appliances	17.75	17.75
Heater (1000 VA ÷ 240 V)	4.20	4.20
Fan (200 VA x 125% ÷ 120 V)	2.08
Dishwasher (400 VA ÷ 120 V)		3.30
Range (7000 VA x 0.8 ÷ 240 V)	23.30	23.30
Total amperes per leg	47.33	48.55

Based on the higher current calculated for either leg, a minimum 50-A supply cord would be required.

For SI units, 0.093 m2 = 1 ft2 and 0.3048 m = 1 ft.