I'm planning to buy a space heater with the following electrical specifications:
- Power : 2000 W
- Operating Voltage : 220-240 V
Many of the reviews say that the heater requires a 15 A socket to work efficiently, whereas most of regular sockets have 5 A capacity.
In India, we get 230 V at 50 Hz.
I'm confused about the power specification. Is it root mean square (RMS) power or peak power?
P = V * I
If we assume 2000 W as peak power, the current capacity for socket comes out to be:
I = 2000 / 230 ~ 8.7 A
However, if you take 2000 W as RMS power, the current capacity for socket comes out to be:
I = 2000 / (230 * 0.707) ~ 12.3 A
What's the standard for specifying power and voltage characteristics of domestic appliances?
I'm sure that the voltage specified is peak voltage, but I'm not sure whether the power specified is peak power or RMS power.