Working safely on electrical installations - informed persons BA4

Learn how to work on an electrical installation under supervision.

Working safely on electrical installations - informed persons BA4
  • Practical
  • 1 day
  • From €385.00 or 2.28 PU
  • Dutch, French, English
  • In-class, Tailor-made
  • In-depth
  • Certificate valid in Belgium
  • SME portfolio, Training cheques, Sector fund

If you work near electrical installations or carry out work on electrical installations yourself (under supervision), it is important to be highly aware of the possible risks in order to avoid accidents. After completion of the course, you will receive a ‘BA4 Informed Person’ certificate.


Do you sometimes work on or near electrical installations? It is crucial to be highly aware of the possible risks. Thanks to this course, you will learn to recognise the dangers and take appropriate action.

The ‘BA4 Informed Person’ certificate of competence

You, the employer, can use a certificate of competence to demonstrate that your employees are capable of working on or near electrical installations.

Thanks to this course, your employee will have sufficient knowledge and skills to carry out non-electrical works near an electrical installation, and to work on an electrical installation themselves under the supervision of a ‘BA5 Competent Person’.

Be sure to complete a supplemental risk analysis. This way, you can confidently issue a ‘BA4 Informed Person’ certificate of competence.

What do you learn?

During this practice-oriented, interactive course you will acquire the necessary knowledge to recognise and act upon the risks of working with electricity as a BA4 warning person.

What’s more, you’ll also exchange tips and experiences with colleagues. These topics will be covered:

  • General information and rules for working safely and under supervision in the vicinity of and on electrical installations.
  • Hazards of electricity in certain tasks and for work in the vicinity of and on electrical installations.
  • Rules for working near and on electrical installations for certain tasks in a de-energised state.
Major electrical works

Do you carry out major electrical works? Or do you supervise BA4 colleagues? Then it is strongly recommended that you complete the more extensive training course ‘Working safely on electrical installations – BA5 Competent Person’.

This course is part of our Impact-offer


Broaden your view and prepare for a new role. A mix of learning methods helps you acquire in-depth knowledge you can apply immediately. The learning paths are often spread over several days.

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After completing this training course:

  • You will be able to safely carry out work on or near electrical installations, such as measuring whether a socket is live, installing lighting, repairing extension cables, installing a temporary power supply, switching an electrical installation on and off, testing a differential switch, and replacing batteries.
  • You will learn to recognise the dangers of electricity and take appropriate action.
  • You will know what to do in the event of an electrical accident, such as an electric shock or an overheating installation.

For whom?

The course is for anyone who is exposed to the dangers of electricity, such as maintenance employees, painters, and technicians.

Minor electrical works involving little risk

Do you merely carry out minor electrical works involving limited or no risk, such as replacing a light bulb or taping a cable? Then the e-learning course ‘Carrying out minor electrical work safely’ is sufficient.

What does the law say?

As an employer, you are required to issue a certificate of competence for each employee who comes into contact with minor and major electrical works and installations. You, the employer, can use these certificates of competence to demonstrate that your employees are capable of and have sufficient knowledge in working on or near electrical installations.

A certificate of competence for working on electrical installations has two levels:  

  • BA4 Informed Person
    This certificate applies to employees who could possibly come into contact with electrical installations but do not carry out work on these installations themselves. This means they must only carry out non-electrical tasks, or minor alterations under the supervision of a competent employee.  
  • BA5 Competent Person
    This certificate applies to employees who personally work on or with electrical installations, or who supervise works carried out by informed persons (BA4). Examples of competent persons are engineers or technicians.  

As well as the training certificate for BA4 or BA5, it is also important that you – the employer – draw up a risk analysis for the electrical installation(s) in order to be able to issue a conclusive certificate of competence.

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The price depends on how you follow the training. If your organisation is affiliated with Mensura External Service for Prevention and Protection at Work (EDPPW), then you will receive a discount. If you have sufficient prevention units available, you can use these to pay for this.

If you opt for a course at your company’s location, you can buy a printed syllabus for €20.40 (incl. VAT) per person. Please indicate your choice in the quote request.

Subsidies and financing options

We qualify for all kinds of subsidies and financing options because we are certified by many government agencies and sector funds.

      • SME-Portfolio. Use these certification numbers in your request: 
        • members of Mensura External Department for Prevention for Prevention and Protection: Mensura EDPB - DV.O105072 
        • non-members: Mensura CONSULT - DV.O101943 
      • Training vouchers 
      • Sector fund
        • Alimento
        • Constructiv

      Frequently Asked Questions

      Will I receive a valid BA4 certificate after taking the e-learning course 'Performing small electrical work safely for informed persons (BA4)'?

      Yes. The course is for people who occasionally carry out small electrical work where there is little risk. You learn to recognise risks and act appropriately at your own pace.

      You will receive a training certificate after passing a short test. Your employer will then draw up a 'BA4 Informed Person' certificate of competence.

      Can I take a BA5 course without having taken BA4 first?

      In principle, yes. However, we do not recommend it. A BA5 course assumes that you already have the necessary basic knowledge of how electrical equipment works. Otherwise, you may not be able to understand or thoroughly absorb all of the new information.

      What exactly is the difference between a BA4 or BA5 certificate and a certificate of competence?

      A certificate of competence is drawn up by your employer after you have successfully completed a qualification course. You are aware of the risks (Informed, BA4) or can carry out small electrical work yourself (Competent, BA5).

      You only receive a valid BA4 or BA5 certificate after passing the entire BA4 or BA5 course.

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