P28 Issue 2 Training Course

Engineering recommendation (EREC) P28 issue 2 was published by the Energy Networks Association (ENA) in 2018 and it became applicable on the 23rd May 2019. The latest versions of the Distribution Code and the Grid Code (issued on the 23rd May 2019) have also been updated accordingly, and refer to P28 issue 2. The previous version of this EREC was published 30 years ago, since then the factors affecting the distribution and transmission systems as well as the equipment connecting to them have changed. The move towards distributed generation and low carbon technologies has the potential to cause voltage fluctuations. This revision of EREC P28 considers these changes and provides updated voltage fluctuation limits.

Those who propose to connect disturbing equipment which might cause voltage fluctuation (flicker or rapid voltage change), and those who carry out assessments concerning the suitability of connecting such equipment to the public electricity supply systems (distribution and transmission networks) need to be aware of this new revision.

TNEI is running a one-day training course to bring you up to speed with EREC P28 issue 2.


Our one-day training course will cover the following:

  • Power quality and its importance
  • A quick guide to the UK power sector
  • Causes for rapid voltage change (RVC) and flicker
  • Brief overview of the changes from P28 issue 1
  • Flicker and voltage fluctuation limits (compatibility, planning and emission)
  • Assessment of disturbing equipment and fluctuating installations
  • Three-stage flicker assessment
  • RVC assessment
  • RVC and flicker measurement
  • Guidance on application for electric motors, furnaces, electric vehicles, wind turbine generators, photovoltaic installations, energy storage, household equipment and welding equipment
  • Changes made in the Distribution Code and the Grid Code (related to P28 issue 2)
  • Potential mitigation techniques

Course duration: 1 day

For group bookings, please get in touch to discuss discounted rates.

Useful for: Developers, consultancies, engineers, students.

Upcoming courses:

To register your interest for the course or to find out more information please email training@tneigroup.com.