![]() ![]() ![]() Installation of electronic systems is less complicated than the maintenance part of it. Why Maintenance Workers Need to Know How to Read Blueprints As such, interpreting the plans and understanding what the prints are saying can be difficult to those who lack comprehensive print reading training. To read electrical blueprints one must understand the flow of the circuit, identify critical nodes, understand Ohm’s Law, and have a deep comprehension of the National Electrical Code. You may know that the inverter is represented by a triangular symbol but if you don’t know what follows after that, you don’t really have an idea of how the system is structured.ĭetails like wire or cable specifications belong elsewhere in a separate documentation. It can be easy to look up the diagram but wrapping your head around the actual meaning is a little harder. The symbols do not look anything like the components they represent and the lines may not resemble the actual physical layout of the components. In some cases, a line can run between components without being connected to any of the components. Each electronic component has a symbol and the connection between specific component terminals is represented by the lines. Many individuals find it difficult to read and understand electrical blueprints, mainly because the prints just show lines and symbols. ![]() Reading Electrical Prints Can Be Difficult Should there be a problem with the building’s electrical system, the electrical print will help maintenance technicians to troubleshoot and fix the problem. These components include wires, light switches, receptacles, wires, light fixtures and any other stuff that will be electrically powered. The print is like a simple roadmap that shows where components are located, the connections, and the wire paths between the components. Phantom Line: Light, Broken line made up of a series of one long and two short dashes.Tags: electrical blueprints, how to read electrical blueprintsĪn electrical print is a technical drawing that shows how the electrical system in a building is going to be constructed and how electrical components will be connected to get a certain function. Long break Line: Ruled, light line with freehand zigzags. shows a short break or show partial section. Short Break Line: Heavy, irregular line drawn freehand. Indicates location and extent of a surface area. Section Lines: series of solid or solid and broken lines arranged in a specific pattern.Ĭhain Line: Heavy, broken line made up of a series of long and short dashes alternately spaced. Indicates imaginary cut made through object ![]() Indicates imaginary cuts made through objectĪlternate Cutting plane line: solid heavy line or a series of long dashes with arrowheads placed at right angles. Arrowheads are placed at right angles to the cutting plane line. Preferred Cutting Plane Line: Heavy broken line made up of a series of one long and two small dashes alternately spaced. Leader: Fine, straight line with an arrowhead or round solid dot at one end that is usually drawn at an angle which is used to point directly to a surface for dimensioning or adding a note. Hidden Lines: Broken line of medium thickness that shows edges of an object or outlines not visible to the eyeĬenter Line: Broken line made up of short and long dashes alternately spaced that show the center of circles, arcs, and symmetrical objects.Įxtension Line: Extension lines are fine lines that extend from the object with slight break between the show dimensioning points.ĭimension Line: fine lines with arrowheads, unbroken except where the dimension is placed that show distance given by the dimensions. Object Lines: Represents a thick solid line that shows the visible shape of an object or part. ![]()
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