Safe Isolation

When it comes to Gas Safe engineers and electrical safety, the rules are changing – from July you will need to prove your electrical competence and knowledge


Gas Safe engineers and electrical safety – the new procedure

Starting from July 2020 (planned to be consolidated by July 2025), a Gas Safe engineer working on a gas appliance or installation with a 230 Volt electrical supply will need to undertake appropriate checks before commencing any work or leaving the installation operational. These checks should include ensuring that the appliance is:
  • safe to touch 
  • and/or safe isolation 
  • and/or electrically dead
This is in line with completing GSIUR Regulation 26(9) checks.
This will be done by changing the Gas Safe requirement process. Anyone who enters or renews their Gas Safe registration via ACS or a GCS (Group Competence Scheme) will be legally required to show that they have the knowledge and competence to safely isolate the electrical supply to a gas appliance.

How will this happen?

Gas engineers will need to prove their competence through self-validation when going through the ACS assessment or reassessment process.  
If they don’t feel confident enough to self-validate, they will need to gain the necessary knowledge through self-learning, external or in-house learning. 
If you are in a Group Competence Scheme, you will still be expected to undergo competence training from July 2020, as well as technical knowledge checks.
The five year ACS cycle will have been completed by 2025, which means that all Gas Safe registered engineers will have undergone the required checks to ensure they can safely isolate the electrical supply to a gas appliance. 
Who is it for?

This course is for anyone working with electricity, primarily designed for technicians who may be required to carry out electrical isolation ancillary to their main employment. Maintenance, Caretaking Staff, Machine Engineers, HVAC, Lift Installers, Telecoms/Data Engineers, Plumbing/Heating/Gas Engineers, Security and Fire System Engineers.

This will help provide employers with additional evidence when assessing electrical competency.

Course Content
  • The legal requirements of the Electricity at Work Regulations 1989, Provision and Use of Work Equipment Regulations and Electricity Safety Council guidance.
  • Lock off and tag out procedures for both single and three phase
  • The exact definition of “Safe Isolation” and how to practically achieve it
  • Selecting suitable test equipment and lock off kits
  • The difference between on and off load isolation

Taught by both theory and practical (three phase by simulation at our centres). If the course is carried out in your own environment we will complete the tasks on your own equipment if you prefer. Delegates may bring their own test equipment and lock off kits (if suitable) or can use our equipment on the day.


This is a 1 day classroom based course. You will be assessed through an end of course assessment and practical assessment.


No specific electrical knowledge is required but candidates must be able to understand and retain technical information. It is expected that you will have a proficiency in literacy and numeracy.

Learners must be at least 18 years of age.


Call 02920 789701 for more details

Print Print | Sitemap
© True Tech Training Ltd Company Number - 10106990. Registered office Clarke Jefferies 6 Cavendish Street Barrow-in-Furness LA14 1SB Training school address - B7 & B8 East Point Industrial Estate, Wentloog, Cardiff, CF3 2GA City & Guilds Centre Approval Number:006576 Skills Funding Agency Number:UKPRN: 10057354 © 2018. The content on this website is owned by us and our licensors. Do not copy any content (including images) without our consent.