Safe Operation of High Voltage (HV) and Low Voltage (LV) Electrical Systems Training Course

Course Overview

This training course is for anyone involved in the operation and maintenance of industrial and power generation plant.

Attendance will help increase your underpinning knowledge to a level where you will be aware of your own competence boundaries, be able to understand simple LV and HV electrical drawings, systems and testing. You will also develop your understanding and knowledge of safe systems of work, for tasks on or near electrical equipment at LV and HV up to 11kV.

Course details

5.0 days
8 people
Course Location
Ratcliffe-on-Soar (Nottingham)
Next available course date
Please call us on +44 (0) 115 983 1740 for availability

Share this course

Click here to book

or click here to use our contact form to get in touch

Course Content

This is a practical training course which will cover the following areas of HV and LV operation:


  • Electrical Safety
  • Basic electrical theory
  • Proving dead with approved methods and indicators
  • Safe use of multi-meters and their limitations
  • Test leads to GS38 standard


  • Basic three phase principles – Single and three phase generation
  • Prospective fault currents
  • LV protection – Fuses, Circuit Breakers, Transformers, RCD’s
  • Discrimination and diversity in electrical systems


  • Earthing methods and bonding and the importance of earthing
  • Induction motor operation, starting methods and testing
  • Electrical test equipment – The safe use of the ‘Megger’
  • Capacitance and inductance in electrical circuits – Safety implications
  • Motor protection - Thermal, magnetic electro mechanical and electronic relays
  • Feeder, transformer and generator protection overview


  • Methods of achieving discrimination with time, magnitude and comparison
  • Understanding of the component parts in common electrical control panels - overloads, isolator, timers, relays, control, indication and power circuits
  • Reading and understanding schematic diagrams
  • Competence – familiarity with LV and HV installed systems
  • Safe systems of work for dead fault finding techniques and practice
  • Electric arcs awareness session
  • Switching sequences for HV systems – Precautions; dead, isolated and earthed; risks, identified, Document,methods, general safety


  • Switching procedure and instructions
  • Preparing exercises in syndicate groups, basic switching instructions and fault finding tasks
  • HV switching exercise
Click here to book

or click here to use our contact form to get in touch

Course Area
Other Related Courses

This course is theoretical and will teach what is required to pass the City &…

3.0 days

This training course will cover the history of electric vehicles in the U.K

2.0 days

Electrical skills will be taught through a mixture of practical and theoretical…

5.0 days

This is a compressed version of the 5 day training course for experienced engineers.…

2.0 days

Further electrical knowledge will be gained through predominantly practical and also…

5.0 days
Get in touch about a course
Call us on +44 (0) 115 983 1740