A typical 2.5-square-foot power cord can carry up to 3,300 watts of appliance power;
4-square-foot copper-core wire can carry up to 5,500 watts of power;
6-square-foot copper-core wire can carry up to 8,000 watts of power;
The maximum current carrying capacity of a meter or a safety switch is multiplied by 220 volts to give the maximum permissible power. For example, a meter with a maximum size of 30A (the current value in parentheses on the meter) or a safety switch allows for appliances up to 6,600 watts of power.
Expanded information:
New city residential electricity load design standards
1, residential building area of 50 square meters or less: each household is designed according to the 4KW;< /p>
2, residential building area 51-60 square meters: each household is designed according to 5KW;
3, residential building area 61-100 square meters: each household is designed 6KW;
4, residential building area 101-120 square meters: each household is Design 7KW;
5, residential floor area 121-160 square meters, each household 8KW design;
6, residential floor area of 161 square meters or more: each household according to the design of 10KW;
7, according to the actual situation of the site to design the oversized residential buildings, villas, electric heating, electrification of the residential area.
Baidu Encyclopedia - Electrical Design Code for Civil Buildings