Page 604 - Handbook of Electrical Engineering

Appendix I

Conversion Factors for the SI System

of Units

(Note, the abbreviation SI means Syst` eme International d’Unit` es, ref: 11 th General Conference of
Weight and Measures, date 1960). The conversion factors shown below can be found in many doc-
uments, for example in References 1 to 7 are a few sources.

I.1 FUNDAMENTAL SI UNITS

Seven basic units
Quantity Name of SI unit Symbol
Amount of a substance mole mol
Current ampere A
Length metre m
Luminous intensity candela cd
Mass kilogram kg
Temperature Kelvin K
Time seconds s
Two additional SI units

Quantity Name of SI unit Symbol
Plain angle radian rad
Solid angle steradian sr

I.2 DERIVED NON-ELECTRICAL UNITS

Non-electrical units Name of SI unit Symbol
Energy, work done and heat joule J
Force newton N

(continued overleaf )

Handbook of Electrical Engineering: For Practitioners in the Oil, Gas and Petrochemical Industry. Alan L. Sheldrake
 2003 John Wiley & Sons, Ltd ISBN: 0-471-49631-6