1. Expression of electrical power
1.1 Continuous power
The power P consumed by a load Z is equal to the product of the voltage U across the load and the current I flowing through it (figure
1
):
with :
- U :
-
voltage expressed in volts (V)
- I :
-
direct current intensity expressed in amperes (A)
- P :
- power consumption expressed in watts...
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Expression of electrical power
Electrical power measurement
Bibliography
In Engineering Techniques
Standardization
International Electrotechnical Commission (IEC)
French Standards Association (Afnor)
- Appareils mesureurs électriques indicateurs analogiques à action directe et leurs accessoires. Partie 1 : Définitions...
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