(2) Wireless (or unguided) - transmission and reception are achieved by means of an antenna.
(1) Guided (or bounded) - waves are guided along a solid medium such as a transmission line. Many transmission media are used as communications channel.įor telecommunications purposes in the United States, Federal Standard 1037C, transmission media are classified as one of the following: "A physical medium in data communications is the transmission path over which a signal propagates. Use it to annotate electrical diagrams, electronic schematics and circuit diagrams. The vector stencils library "Transmission paths" contains 43 symbols of power transmission paths, electronic circuits, bus connectors and elbows, terminals, junctions, and concentrators. The outlet and switch layout example "Cafe electrical floor plan" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Electric and Telecom Plans solution from the Building Plans area of ConceptDraw Solution Park. (5) Schedules and other information in combination with construction drawings.Įlectrical drafters prepare wiring and layout diagrams used by workers who erect, install, and repair electrical equipment and wiring in communication centers, power plants, electrical distribution systems, and buildings." (3) Power-riser diagrams showing panel boards. (2) Floor plans showing the location of electrical systems on every floor. (1) A plot plan showing the building's location and outside electrical wiring.
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Any electrical working drawing consists of "lines, symbols, dimensions, and notations to accurately convey an engineering's design to the workers, who install the electrical system on the job".Ī complete set of working drawings for the average electrical system in large projects usually consists of: "An electrical drawing, is a type of technical drawing that shows information about power, lighting, and communication for an engineering or architectural project. This cafe electrical floor plan sample shows the outlet and switch layout.
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