Training courses for operators
Operators must be capable of accurately assessing the risks associated with their work and the work environment.
What exactly is an operator?
Anyone working on or in Elia electrical facilities must have sufficient knowledge of the risks associated with their work and the work environment so that they can accurately determine which safety measures must be taken.
An ‘Operator’ certificate confirms that the holder is familiar with the risks involved in working on or in an Elia facility. Operators always work under the authority of a work leader.
The basic information that operators must know depends on their profile. There are four types of operator. The distinction is based on the facility on which the operator will work.
- GSIS operator
The contractor’s employee will be working in an Elia high-voltage substation.
- GSIL operator
The contractor’s employee will be working on Elia pylons or high-voltage lines.
- GSIC operator
The contractor’s employee will be working on Elia underground cables.
- GSIO operator
The contractor’s employee will be working offshore for Elia.
How to obtain certification as an operator
1 Submit a BA4/BA5 declaration of competence or codification document
By issuing a BA4/BA5 declaration of competence, the employer confirms that the employee has the necessary qualifications to work in or near an electrical facilityElia can only award a certificate if we have received a copy of this declaration, which the employer should have anyway. You must send us this declaration when you apply to register.
If you would like more information about the declaration of competence, see or check the .
2 Apply to register
If you need more information for your application, see
You can register on this website. Please note that registration for the course is not final until you have received confirmation from the Safety Support Department.
3 Acquire basic knowledge
An operator must have the level of basic knowledgeAnyone seeking certification as an operator must have the level of basic knowledge required for operators of the risks present in Elia facilities and the prevention measures used to address them.Depending on the operator’s profile, this may require knowledge of the risks and prevention measures associated with work in high-voltage substations (GSIS), work on or near cables (GSIC), work on high-voltage power lines (GSIL) or work offshore (GSIO).The basic information required for each profile can be found in the ‘Course material’ section.
4 Take the test
You will need to take a test based on your profile. You must pass this test to be certified as an operator.There are three ways of preparing for the test:
You can hold more than one type of certificate.
- independent study of the course material, followed by a test at Elia during one of the scheduled test sessions;
- an in-house training course organised by your employer, followed by a test;
- a half-day training session at Elia, followed by a test.
5 Receive the certificate
Certificate and Prices
You will receive your certificate within three weeks of passing the test.
In principle, your certificate will be valid for two years (unless your BA4/BA5 declaration of competence expires before that). You will need to take another test after two years.
- Testing at Elia: free.
- Testing at the contractor’s premises (min. 30 participants): €1,500 (fixed price)
- Training session (1/2 day) at Elia: €150 per person
- Training session (1/2 day) delivered by Elia at the contractor’s premises (min. 30 participants): €3,000 (fixed price)