1""" 2""" 3from __future__ import absolute_import 4 5from ..unitquantity import UnitQuantity 6from .energy import Btu, J 7from .time import s, h, min 8from .electromagnetism import A, V 9from .length import ft 10from .force import lbf 11 12 13W = watt = volt_ampere = UnitQuantity( 14 'watt', 15 J/s, 16 symbol='W', 17 aliases=['watts', 'volt_ampere', 'volt_amperes', 'VA'] 18) 19mW = milliwatt = UnitQuantity( 20 'milliwatt', 21 W/1000, 22 symbol='mW', 23 aliases=['milliwatts'] 24) 25kW = kilowatt = UnitQuantity( 26 'kilowatt', 27 1000*W, 28 symbol='kW', 29 aliases=['kilowatts'] 30) 31MW = megawatt = UnitQuantity( 32 'megawatt', 33 1000*kW, 34 symbol='MW', 35 aliases=['megawatts'] 36) 37hp = horsepower = UK_horsepower = British_horsepower = UnitQuantity( 38 'horsepower', 39 33000*ft*lbf/min, 40 symbol='hp', 41 aliases=['UK_horsepower', 'British_horsepower'] 42) 43boiler_horsepower = UnitQuantity( 44 'boiler_horsepower', 45 33475*Btu/h 46) 47metric_horsepower = UnitQuantity( 48 'metric_horsepower', 49 0.73549875*kW, 50 doc='exact' 51) 52electric_horsepower = UnitQuantity( 53 'electric_horsepower', 54 746*W 55) 56water_horsepower = UnitQuantity( 57 'water_horsepower', 58 746.043*W, 59 doc='exact' 60) 61 62refrigeration_ton = ton_of_refrigeration = UnitQuantity( 63 'refrigeration_ton', 64 12000*Btu/h, 65 aliases=['ton_of_refrigeration'] 66) 67 68del UnitQuantity, Btu, J, s, h, A, V 69