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Before standardization, socket types varied: C (very old installations), I (for air conditioners), and combinations like A/C and A/B/C. British Virgin Islands: A, B 110 V 190 V 60 Hz Brunei: G 240 V 415 V 50 Hz Bulgaria: C, F 230 V 400 V 50 Hz Burkina Faso: C, E 220 V 380 V 50 Hz Burundi: C, E 220 V 380 V 50 Hz Cambodia: A, C, G
The line to neutral voltage is half the line-to-line voltage. Lighting and small appliances may be connected between a line wire and the neutral. Higher-power appliances, such as cooking equipment, space heating, water heaters, clothes dryers, air conditioners and electric vehicle charging equipment, are connected to the two line conductors.
High-power appliances such as kitchen stoves, water heaters and household power heavy tools like log splitters may be supplied from the 400 V three-phase power supply. Small portable electrical equipment is connected to the power supply through flexible cables terminated in a plug, which is inserted into a fixed receptacle (socket).
The efficiency of air conditioners is often rated by the seasonal energy efficiency ratio (SEER), which is defined by the Air Conditioning, Heating and Refrigeration Institute in its 2008 standard AHRI 210/240, Performance Rating of Unitary Air-Conditioning and Air-Source Heat Pump Equipment. [61]
If you're like the typical American, you've probably got about 40 household appliances that you routinely leave plugged in – even when these devices aren't actively being used. But did you ...
In residential construction, branch circuits for higher ratings are usually dedicated to one appliance, for example, fixed cooking appliances, electric clothes dryers, and air conditioners. Lighting and general purpose receptacles are at 120 volts AC, with larger devices fed by three wire single-phase circuits at 240 volts.
In Brazil, similar plugs and sockets are still commonly used in old installations for high-power appliances like air conditioners, dishwashers, and household ovens. Although being often called "Argentine plug," it is actually based on the American NEMA 10-20 standard, and is incompatible [how?] with Argentine IRAM plugs. Since Brazil adopted ...
Also, larger aluminum stranded building wire made with AA-8000 series alloy of aluminum is used for electrical services (e.g. service entrance conductors from the utility connection to the service breaker panel) and for larger branch circuits such as for sub-panels, ranges, clothes dryers and air-conditioning units.