mbrooke
Batteries Included
- Location
- United States
- Occupation
- Technician
Ok- say you have a water heater, electric furnace, baseboard or even a restaurant grill. How is the current and/or wattage rating for those derived by the manufacturer? Is it the actual value at the listed voltage or a value multiplied by some number like 125% on AC units?
Reason I ask because while the NEC has us use the nominal voltage for our equations, in reality a circuit may be over 110% of the nominal voltage which will cause the equipment to draw more current than it label in theory.
Reason I ask because while the NEC has us use the nominal voltage for our equations, in reality a circuit may be over 110% of the nominal voltage which will cause the equipment to draw more current than it label in theory.