UL Field Inspections. Yesterday we were greeted at the front door by our UL Inspector for an unannounced field inspectionâ¦surprise! At another facility there might be a cry for alarm, but at Coast Label Company there was no mad scramble, no rush to hide this, or go find that. We just sat him down and asked what he was checking today.
Jet pumps create suction in a rather novel way. The pump is powered by an electric motor that drives an impeller, or centrifugal pump. The impeller moves water, called drive water, from the well through a narrow orifice, or jet, mounted in the housing in front of the impeller.
Re: How does an electricity meter work? Â« Reply #1 on: 09/01/2012 00:37:03 Â». The traditional meter usually has a metal disc that rotates as power is consumed. The disc is actually part of an electric motor that rotates at a speed that is proportional to the product of the voltage and the current being supplied.