4A Design & Engineering Private Limited is the 'State of the Art' Design Engineering Centre for Power & Transmission, Building and Oil & Gas Industry. An ISO 9001:2015 Certified Company, located at Chennai, the capital of state of Tamil Nadu, in the southern part of India.

Design & Detail Engineering from 33kV to 765kV, Including Spotting of Towers and Foundations using industry practice software like PLS Tower, PLS Pole, PLS CADD for OHL Design, Tower Spotting and BOCAD- 3D for Detail Engineering as per relevant ACI, ASCE, BS, BSEN, DIN, IEC, IEEE & IS.

Design & Detail Engineering from 11kV to 765kV Air Insulated & Gas Insulated Substations, associated Electrical, Civil & Structural, Mechanical, Control & Automation System and Telecommunication Systems as per relevant ACI, BS, IEC, IEEE, IS & other international codes.

Planning, Conceptualization, Design & Detailing associated Architectural, Civil & Structural, Electrical,  HVAC,  plumbing  &   Fire protection, Piping, Instrumentation,  Telecom,  PDMS,  BIM and 3D Model. Various types of buildings such as Administration, Chemical Storage, Maintenance, Warehouse, Laboratory, Fire Stations and Medical Centres.

Design & Detail Engineering for Under Ground Cabling upto the voltage level of 220kV, which includes detailed routing of cables, trial pit & joint bay drawings, bonding Schemes, phase sequence diagram, cable route profile and cable pulling tension calculations.

4A's Valued Customers