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Utilities
Of or related to any publicy utility institution mandated with maintaining the infrastructure for a particular public service; such as the provision of water, gas and electricity.
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Utilities > Electricity 
impedance
Electrical equipment; Electricity
1) The total opposing force to the flow of current in an ac circuit. 2) The total resistance to flow of an alternating current generally expressed in ohms. It is a combination of ...
impulse test
Electrical equipment; Electricity
Tests to confirm that the insulation level is sufficient to withstand overvoltages, such as those caused by lightning strikes and switching.
incandescent lamp
Electrical equipment; Electricity
A lamp in which light is produced by a filament heated to incandescence by an electric current.
incident energy
Electrical equipment; Electricity
The amount of energy impressed on a surface, a certain distance from the source, generated during an electrical arc event. Often measured in calories per centimeter squared. ...
incidental light traffic
Electrical equipment; Electricity
Refers to a grade level Reinforced Polymer Concrete or Fiberglass Reinforced Plastic box or Cover load rating of 10,400lbs. This rating is derived from incidental single vehicle ...
independent time measuring relay
Electrical equipment; Electricity
A measuring relay, the specified time for which can be considered as being independent, within specific limits, of the value of the characteristic quantity.
Sub-categories
- Electricity (7954)
- Emergency systems (0)
- Gas (1175)
- Sewage (66)