Engineering Services

Power and distribution

Centara is a trusted provider of high-quality light current secondary design, reinforced by professional and personal service. Collectively, our engineers have more than 60 years’ experience in the high voltage (HV) transmission and distribution industry.

HV secondary light current engineering design

  • Protection replacement and new-build schemes – 132/275/400 kV
  • Protection replacement and new-build interface design services – 132/275/400 kV
  • Low voltage (LV) light current engineering design
  • Protection replacement and new build schemes – 11/33/66 kV
  • Protection replacement and new-build interface design services – 11/33/66 kV

We provide front-end engineering design services, carry out initial on-site surveys to capture the required design criteria and establish drafting requirements for the associated project scheme. We support and deliver scheme circuit diagrams, wiring diagrams and GAs and associated construction set drawing packs, including cable diagrams and core-sheet information and an associated interface design service creating construction drawing packs, including site delivery. We print the required drawings for the project with an associated document control facility, including all as-built drawing management support.

Site drawing systems

We provide site drawing management cleansing services for the upkeep of site record systems, including scheme closure engineering support to the power and distribution industry. Our all-encompassing services include

  • ensuring the DWG index aligns with the corresponding site status
  • removing all redundant and obsolete drawings from the current site filing systems and updating all those that have been marked up by hand on-site
  • providing new site filing cabinets.


Scheme closure engineering

We can ensure that scheme closure activities relating to drawing management are compliant with the client’s requirements.

Substation master templates

We provide new substation master template drawings, vehicle access plans and resilience plans for all HV substations. Our services include

  • reviewing, compiling and updating all site layout drawings to as-built status
  • creating hazard plans, including underground services such as drainage (utility mapping and GPR surveys)
  • overhead line clearance details across the whole location (vehicle access plans)
  • devising resilience plans for points of hazard and control in the event of an emergency.

Other services

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Centara is part of the RSK group of companies

The RSK group is a leading integrated environmental, engineering and technical services business offering bespoke end-to-end solutions to a variety of sectors. Headquartered in the UK but with an established presence throughout Europe, Africa, the Middle East, Asia and Australia, RSK helps organisations around the world achieve their business aspirations in a sustainable and efficient manner.