EC &I Design

Addison Project’s control electrical design section has the capabilities and experience to meet your entire EC&I design requirements. We can provide full design teams for multi-million pound projects but also individual designers and engineers can undertake smaller projects or provide a few hours of engineering support.  We work to your needs, not our own.

Utilising other departments within Addison Project we can undertake the planning, procurement and management of control electrical construction, placing the emphasis on maximising value. Our team of engineers, designers and detailers can adapt to your specific needs to maintain quality and efficiency levels.

Our internal quality procedures ensure that your requirements are understood and fully satisfied whilst considering safety, environmental and constructability issues.  Compliance with relevant client and industry standards, regulations and legislation is also under strict control and is one of our highest priorities when completing any project.


Our range of EC&I design services include:

  • P & ID development.
  • Front-end design and feasibility studies
  • HV power distribution (upto 33kV)
  • Surveys and reports, including lighting requirements and fire alarm systems
  • Project cost estimates, from budget to sanction grade
  • Equipment user requirement specifications
  • Hazardous area design expertise
  • Maintenance and inspection of Electrical & Instrumentation (E&I) Equipment in Hazardous Areas.
  • SIL and safety shutdown systems
  • DCS and PLC installation or obsolete system replacement
  • LV power distribution
  • Motor control centres and control panels
  • EC&I detailed design, including full construction installation drawings and packages
  • Vendor package FAT and witness testing and inspections
  • Enquiry and construction specifications
  • Construction supervision and commissioning support, including construction control documentation
  • Review of site electrical infrastructure for compliance with BS 61936. – 2010
  • CDM documentation

Typical design deliverables we can produce are as follows:

  • Instrument and electrical equipment layouts, grid location and cable route diagrams
  • Electrical power, small power, lighting and earthing system diagrams
  • Block wiring diagrams
  • Electrical distribution diagrams
  • Instrument and electrical equipment data sheets
  • Process data sheets
  • Flow charts and function diagrams
  • Control and drive control data sheets
  • Instrument and electrical control panel arrangement and wiring diagrams
  • Instrument and electrical arrangement and hook-up diagrams
  • Instrument loop diagrams
  • Electrical schematic and wiring diagrams
  • System input and output schedules
  • Equipment dimension schedules
  • Electrical surface heating schedules
  • Installation scopes of work, including equipment, bulk material, cable and label schedules
  • Equipment enquiry and ordering descriptions and specifications
  • User requirement specifications (URS’s) and functional design specifications (FDS’s)
  • Hazardous area classification diagrams, LEAC sheets and properties of flammable materials schedules (dust, vapour, gas or liquid)
  • Hazardous area inspection diagrams and schedules
  • Trip and alarm classification schedules, requirements schedules and test methods
  • Feasibility studies
  • Survey reports
  • Front-end engineering packages and sanction grade estimates
  • Design risk assessments
  • Calculation sheets
  • Commissioning procedures
  • Project Health & Safety files and data manuals
  • Client training packages

Your design requirements can be selected from our comprehensive design documentation checklist. This is usually carried out during an initial project review and ensures that we provide you with your precise design requirements.

50 Million Pound Projects Undertaken

"I’d just like to let you know how impressed I’ve been with the way your engineers have worked together with us on this project." High Performance Plastics Producer