Electricity

Electricity

A database referring to the existence of a flow of electric charge.

Industry: Utilities

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Electricity

luminaire dirt depreciation factor (LDD)

Electrical equipment; Electricity

The multiplier used in luminance calculations to relate the initial luminance provided by clean, new luminaries to the reduced luminance that they will provide due to dirt collection on the ...

luminance

Electrical equipment; Electricity

In a direction and at a point of a real or imaginary surface

lux

Electrical equipment; Electricity

The SI unit of luminance. One lux is one lumen per square meter.

media access control (MAC) address

Electrical equipment; Electricity

Media Access Control address is a unique numeric identifier assigned to each device connected to an Ethernet network. It is used for data transmission and security functions.

main protection

Electrical equipment; Electricity

The protection system which is normally expected to operate in response to a fault in the protected zone.

major roadway (lighting)

Electrical equipment; Electricity

That part of the roadway system that serves the principal network for through-traffic flow. The routes connect areas of principal traffic generation and important rural highways entering the city.