tehoarvon

Tehoarvo, in Finnish technical language, denotes the power value or power rating of a device or system. It is the numerical quantity that describes how much power the equipment can deliver or consume, typically expressed in watts (W) or kilowatts (kW), and in engines or motors also in horsepower (hp). The term is broad and its exact meaning can refer to nominal or rated power, peak power, or an operating power specified under defined test conditions.

In electrical equipment, tehoarvo usually refers to the output power available to the load, while for devices that consume electricity it can indicate power draw. For motors and engines, tehoarvo commonly describes shaft power at the output, i.e., the usable mechanical power after losses. Manufacturers often present multiple figures, such as nominal (rated) power and maximum or peak power, defined under standardized test setups.

Power values are specified under defined conditions, including supply voltage, temperature, and duty cycle. They are used to compare performance, to size electrical circuits and cooling, and to assess suitability for tasks. It is important to note that the stated tehoarvo is not guaranteed under all real-world conditions; actual delivered power depends on efficiency, operating conditions, and conditioning of the equipment.

The term is primarily used in Finnish-language technical literature and product specifications. In English-language contexts, similar concepts are described as power rating, nominal power, or peak power.