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Choose Your Electrical Authorization: Online Simulator

19/01/2026

Electrical Authorization Guides

Which electrical authorization should you choose for your work? B0, H0, B1, B2, BR, BS… Our electrical authorization simulator helps you determine the authorization level you need based on your activity and the operations you perform.

Step 1

What type of operations do you perform?

Specify the nature of these operations:

Check the operations you perform:

Specify the type of intervention:

Check the operations you perform:

What voltage domain(s) do you work in?

Check the applicable voltage domains:

What type(s) of operations will you perform in LV?

Check the operations you perform:

What type(s) of operations will you perform in HV?

Check the operations you perform:

What type(s) of operations will you perform (LV and HV)?

Check the operations you perform:

Recommended Authorizations

Need help understanding these levels?

For non-electrician personnel who need to access areas with electrical risk or carry out non-electrical work (painting, cleaning, etc.).

For performing elementary interventions (fuse/bulb replacement, resetting) or switching operations.

For personnel carrying out excavation or trenching work near buried electrical networks.

For performing electricians working under the direction of a work supervisor in Low Voltage.

For work supervisors responsible for organizing and ensuring the safety of a Low Voltage worksite.

For general intervention supervisors, autonomous for troubleshooting, connection and testing in Low Voltage.

For lockout supervisors, responsible for the safe de-energization of installations.

For performing tests on electrical equipment.

For performing electrical measurements on installations.

For carrying out inspection and verification of electrical installations.

For performing electricians working under the direction of a work supervisor in High Voltage.

For work supervisors responsible for organizing and ensuring the safety of a High Voltage worksite.

For lockout supervisors in High Voltage.

For performing tests on High Voltage electrical equipment.

For performing electrical measurements on High Voltage installations.

For carrying out inspection and verification of High Voltage electrical installations.

How to determine your needs?

To choose your electrical authorization, analyze:

Your activity:

Electrical work (creation, modification, repair of electrical installations)
Non-electrical work (operations in electrical rooms without circuit handling)
Maintenance interventions, troubleshooting, equipment replacement
Specific operations (testing, measurement, verification, switching, lockout)

The voltage domain:

Low Voltage (LV): 50V to 1,000V
High Voltage (HV): above 1,000V
Extra Low Voltage (ELV): below 50V

Your role:

Performing electrician: carries out tasks under instruction
Work supervisor: organizes and directs the worksite
Intervention supervisor: works autonomously for maintenance
Operator: performs switching operations

Our electrical authorization simulator analyzes these criteria to recommend the symbol suited to your needs.

Types of electrical authorizations

Low Voltage (LV)

Non-electrical work:

B0, H0, H0V: Simple operations without handling live bare parts

Electrical work:

B1, B1V: Performing electrician authorized under a work supervisor’s direction
B2, B2V: Work supervisor, organizes and directs operations
BR: General intervention (troubleshooting, connection, maintenance)
BS: Elementary interventions (fuse, switch, socket replacement)

Specific operations:

BE Switching: Starting/stopping installations
BE Measurement/Testing/Verification: Measurement, testing, verification operations
BC: Electrical lockout supervisor

High Voltage (HV)

H0, H0V: Non-electrical work in a high voltage environment
H1, H1V: Authorized performing electrician for high voltage work
H2, H2V: High voltage work supervisor
HC: High voltage lockout supervisor

Authorization Symbols

Each electrical authorization symbol is composed of:

1st letter: Voltage domain (B = Low, H = High, T = Extra Low)
2nd character: Nature of operations (0 = Non-electrical, 1 = Performing electrician, 2 = Work supervisor, R = Intervention, S = Elementary intervention, C = Lockout, E = Testing/Measurement)
Attributes: V = Vicinity, T = Live work, N = Live cleaning

Training and Obtaining the Authorization

Mandatory Training

Completing electrical authorization training with an approved training body is mandatory. The appropriate training includes a theoretical component (electrical risks, safety rules, protective devices, procedures) and a practical component (use of PPE, operations on real installations).

Initial training duration:

B0 H0 H0V: 1 day (7 hours)
BS BE Switching: 2 days (14 hours)
B1 B2 BR: 3 days (21 hours)
H1 H2: 3 to 4 days

Authorization Certificate

The employer issues an authorization certificate after validation of training and verification of medical fitness. The authorization certificate specifies the assigned symbols and the validity period (generally 3 years).

Mandatory Recertification

Electrical authorization recertification (1.5 days) must be completed before the expiry date to maintain the current certificate and update knowledge.

Who needs an electrical authorization?

Any person working near an electrical installation or likely to work in an electrical environment must obtain an authorization suited to their activity, whether they carry out electrical or non-electrical work.

The authorization requirement applies to all workers exposed to electrical risks, regardless of their profession: electrician, maintenance technician, cleaning staff, building maintenance personnel in electrical rooms, installation operator, site manager, or any employee required to work in an environment where an electrical installation is present.

All business sectors are affected: industry, construction, services, energy, transport (electric vehicles, machinery), local authorities, and commercial. Whenever there is live voltage or access to an electrical room, electrical authorization training is mandatory to ensure workplace safety.

Train with Voltwork

Voltwork is a training organization specializing in electrical authorization training and safety:

✓ Expert trainers in electrical safety
✓ Theoretical and practical training
✓ Programme compliant with the NF C 18-510 standard
✓ Training certificate for the employer
✓ In-company sessions available

Need help choosing your training? Contact us or use our simulator for tailored authorization preparation.

FAQ

What is the difference between B1 and B2?

B1 = performing electrician under instruction. B2 = work supervisor who organizes and ensures the safety of operations.

Can I work alone with BS authorization?

Yes, BS allows elementary interventions to be carried out alone: fuse, switch, and socket replacement in low voltage.

Does H0B0 allow handling electrical equipment?

No, H0B0 only concerns non-electrical work in an electrical environment without circuit handling.

Which authorization for photovoltaic panels?

The BR PV authorization is specific to photovoltaic installations.

How long is an authorization valid?

Generally 3 years. Recertification is mandatory before the expiry date.

Can the employer refuse authorization after training?

Yes, if the required skills or medical fitness are not established. The employer’s liability is at stake.