Engineering Drawing / Drafting

Engineering Drawing and Drafting - Representative image
Drawing means lines, shapes, finishes, sizes and colour combined to construct objects or structures. It will be a cumbersome task narrating an idea without drawing if the idea is an object or structure. Engineering is heavily depending drawings, since has developed a global language named Engineering Drawing, capable to express its objects and structure to everyone without the barrier of human languages. Drawings conveniently helps to explain and record an idea that can be smoothly conveyed to one person to other or sometimes to machine too.

Electrical Earthing or Grounding Methods for Signal And Communication Systems

Electrical Earthing or Grounding in Signal And Communication Systems
Signal and Communication Systems: For telephone, alarm, voice and data, and other communication systems, provide 16 mm2 minimum insulated grounding conductor in raceway from a separate grounding electrode clean system to each service location, terminal cabinet, wiring closet, and central equipment location.

Public Address System In Electrical Construction Contract

Public Address System In Electrical Construction Contract
The contractor shall supply, installation, test and commission a public address system consisting of power amplifier, mixer power amplifier, microphone module, paging console, cabinet rack, conduits and wiring and all the necessary equipment required by the system shown and described on drawings, bill of quantities and hereinafter.

Mechanical Services In MEP Construction

MEP Specification drawing for building Mechanical contract work

Particular Specification For Mechanical Services describes various general requirements In MEP Construction Work, a contractor to follow when they start executing but not limited to unforeseen work or requirements to accomplish the whole project contract.

Capacitor Banks in Electrical Construction Works

Capacitor Banks In Electrical Construction Contract Works

Capacitor banks help to improve the quality of the electrical power and gives us the more efficient operation of the power system. Capacitor banks are inexpensive if we compare the benefits they deliver to overall power system and can be easily installed anywhere on the network. This specification covers the manufacture, supply, installation, testing and commissioning of 415 Volts, 3 phase, 50 HZ, capacitor banks for power factor improvement in building electrification project.

Electrodes for Earthing or Grounding System in Building Construction

Electrical Earth Pit or Grounding Pit

A. Ground Rod:

16 mm diameter stainless steel. Driving head is to be high strength steel. Couplings are to be long length silicon bronze, internally threaded. Threads are to be rolled onto rod to ensure uniform layers of copper and strength. Earth rod is to be complete with non-corrosive couplings, head and bolted connector of sufficient size, and number of bolted clamps to connect all cables terminated thereto.

Typical Installation Details Of Floor / Wall Mounted Electrical SMDB

Floor mounted electrical Sub-Main Distribution Board (SMDB)
Electrical Sub-Main Distribution Boards (SMDB) are the integral part of Electrical LV Power distribution network in the end user premises of a medium and large scale projects. SMDB acts as a mediator between Main Distribution Board (MDB) and Final Distribution Boards (FDB) that serves approximately 100A to 400A load range. The drawings given here shows how to install:

Refrigeration Plant in MEP Construction

Refrigeration Plant in MEP Construction Work
In this sample MEP specification section, Mechanical Refrigeration Plant has been described in detail under construction contract work. Main Highlights of this MEP Specification are: General Requirements, Compressors, Evaporators, Condensers, Condensing Units, Refrigeration Plant Accessories, Pipework, Valves and Ancillaries, Insulation, and Controls.

Method of Clean Earthing or Grounding in Electrical System

Representative image of Clean Earthing for Building Construction
Clean earth grounding or low noise earth shall be provided as required, to ensure that the level of induced or conducted interference from external sources, including the facility power grounding system, does not produce incidence of malfunction of the equipment, which is unacceptable for the operating system.

Medium Voltage Distribution System In Electrical Construction

Specification for Medium Voltage Distribution System In Electrical Construction Contract Works
The work included within this section is for the supply, connection, testing and commissioning of 13.8 KV switch gears, cables, package sub station and all the related accessories necessary for the proper operation of the system as shown and described on drawings, bill of quantity and herein. The contractor shall coordinate with the other services (trades) involved in the project to insure that the foundation, are suitable for the equipment to be installed.

Installation of Structured Cabling For Voice / Data System In Building Construction

Cat6 Voice / Data cables
The Contractor shall design, supply and install outlet plates, conduits, trunking, trays, wiring, junction boxes, distribution frames, patch panels, data rack, backbone cables, etc. necessary to form a complete structured system for voice and data cabling within the buildings. Cabling / wiring shall be provided for voice system from patch panel location to each voice/data outlet. Draw wires shall be provided in conduits for future data cabling / wiring by others (if applicable). The installation shall comply with the requirements of ANSI / EIA / TIA-568-1991 as appropriate as well as Local Telecom Authority.

Air Conditioning And Ventilation Installations in MEP

Specification for Air Conditioning And Ventilation Installations in MEP

In this sample MEP specification section, Air Conditioning And Ventilation Installations have been described in detail under construction contract work. All individual components of packaged air handling units shall comply with the appropriate Sections of this Specification unless otherwise specified within the Schedules or on the drawings.