ABSTRACT
In Chapter 1 (Section H ) , we pointed out that water andor wastewater operators normally have little difficulty recognizing electrical equipment within their plant sites. This is the case, of course, because there are few places within the plant site (that is, in the majority of plant sites) that an operator can go where electricity is not performing some important function. Simply stated, whether the important function be powering lighting, heating, air conditioning, pump motors, mechanized bar screens, control systems, communications equipment, or computerized systems, it would be difficult for the modern operator to imagine plant operations without the use of electrical power.
