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A typical one-line diagram with annotated power flows. Red boxes represent circuit breakers, grey lines represent three-phase bus and interconnecting conductors, the orange circle represents an electric generator, the green spiral is an inductor, and the three overlapping blue circles represent a double-wound transformer with a tertiary winding.
An electrical drawing is a type of technical drawing that shows information about power, lighting, and communication for an engineering or architectural project.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".
An electronic symbol is a pictogram used to represent various electrical and electronic devices or functions, such as wires, batteries, resistors, and transistors, in a schematic diagram of an electrical or electronic circuit. These symbols are largely standardized internationally today, but may vary from country to country, or engineering ...
Although the clenched fist has come to represent a show of power and perseverance—upon Nelson Mandela’s release from prison in 1990, both he and his wife Winnie raised their fists in triumph ...
Positive power supply connections for each stage would be shown towards the top of the page, with grounds, negative supplies, or other return paths towards the bottom. Schematic drawings intended for maintenance may have the principal signal paths highlighted to assist in understanding the signal flow through the circuit.
The shaman would retreat into the darkness of the caves, enter into a trance state, then paint images of their visions, perhaps with some notion of drawing out power from the cave walls themselves. R. Dale Guthrie, who has studied both highly artistic and lower quality art and figurines, identifies a wide range of skill and age among the artists.
In works of art, literature, and narrative, a symbol is a concrete element like an object, character, image, situation, or action that suggests or hints at abstract, deeper, or non-literal meanings or ideas.
Mechanical: Mechanical drawings show plumbing, heating, ventilation and air conditioning systems, or fire protection systems. Electrical:Electrical plan drawings may include equipment and cable tray layout, lighting and power, grounding, telephone, local area network, special communications or signal systems, or a reflected lighting plan.