As aids in planning, consumers may be conveniently classified
into certain categories and certain ranges of load densities expressed in
kVA per square mile (where this unit is too broad to be useful, watts per
square foot for specific occupancies may be used).
Further classifications may be based on such items as the dependence
on electric service because of the critical nature of the consumer’s
operations, under either normal or emergency conditions; the resultant
cost if critical processes are interrupted; or the sensitivity of loads to
small voltage deviations.
