MEP Drafting: The Various Drawings That Are Generated in the Process

Drafting Services are executed for the Mechanical, Electrical and Plumbing systems of the going to be constructed buildings, so that the MEP engineers can be delivered with the most accurate and efficient drawings. MEP Drafting is carried out with the support of electrical, mechanical and plumbing engineers along with the CAD drafters. Drafting is a very technical process, so to execute these services all the MEP engineers first involve in the design of their respective systems and then provide specification to the drafters based on what they have designed.

The Mechanical Engineers are accountable for the design development of the HVAC systems of the building, whereas the Electrical Engineers are responsible for the design of the power distribution systems and fire alarm systems.

The plumbing or the piping systems of the building are looked after by the plumbing engineers. They design the entire piping system of the building based on the instructions of the architects. In fact, drafting services all the MEP engineers design their respective systems based on the instructions of the architects. This is because the architect is accountable for the entire appearance of the building and the rest of the building system, be it the structural framework or the MEP systems they are all developed or designed to support it.

The different kinds of MEP drawings that are generated in the drafting process are explained below.

Mechanical Drawings: In mechanical drawings, the layout of the HVAC systems is drawn or drafted. In other words mechanical drawings consist of the heating, ventilation and air conditioning systems of the building. The HVAC system drawings can be categorized in multiple manners depending upon the information shown in them. The mechanical drawings can be assisted with the schematic diagrams so that the information can be understood in a better way.

Installation drawings: Installation drawings are generally the detailed drawings which are generated from the coordinated models. So the accuracy of theses drawings cannot be doubted. They are referred by the engineers during the installation of the HVAC systems.

Electrical drawings:The drawings of the electrical systems include the electrical wiring drawings, circuit diagrams, schematic diagrams, electrical floor plans and the layout drawings for fire alarm systems. The electrical wiring drawings are developed to describe the entire wiring system of the building meant for the transmission of the electricity. The electrical circuit is shown with the help of the circuit diagram whereas the electrical floor plan describes in detail the electrical plan of the entire floor. It gives the information related to the placements of switches, lighting, fixtures, etc.


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