Key data
| Regulation | Resolution of April 1, 2026, from the General Secretariat of Industry and Energy Development, Ministry of Economy and Industry |
|---|---|
| BOE Publication | May 1, 2026 |
| Effective date | April 1, 2026 |
| BOE Reference | BOE-A-2026-9522 |
| Manufacturer | Alce Electrik |
| Affected model | 4MA72, Size 4 variant |
| Equipment type | High-voltage current measurement transformer |
| Affected parties | Manufacturers, installers and electrical network operators using this model |
| Category | Energy / Industrial authorization |
| Authority | General Secretariat of Industry and Energy Development, Ministry of Economy and Industry |
If your company installs, operates or maintains high-voltage current measurement transformers and uses the 4MA72, Size 4 variant from Alce Electrik, this resolution directly affects you. The General Secretariat of Industry and Energy Development has modified the authorization conditions for this equipment through the Resolution BOE-A-2026-9522, published on May 1, 2026 with effect from April 1, 2026.
The resolution is not a minor administrative procedure: it modifies the conditions under which this equipment can be installed and operated on the electrical network. Ignoring it could mean installing equipment outside current requirements or maintaining installations in operation that require review.
What does this regulation establish?
The resolution modifies the authorization of the high-voltage current measurement transformer model manufactured by Alce Electrik, specifically the 4MA72 model, Size 4 variant. This authorization is the enabling document that allows the equipment to be installed and put into service on the Spanish electrical network.
Current measurement transformers are critical equipment in high-voltage networks: they are used to measure and control the electrical current flowing through the network, and their correct operation is essential both for the safety of the installation and for the accuracy of energy measurement.
| Element | Detail |
|---|---|
| Manufacturer | Alce Electrik |
| Model | 4MA72 |
| Variant | Size 4 |
| Equipment type | High-voltage current measurement transformer |
| Authorized use | Installation and use on the electrical network under the new conditions established |
| Authorizing body | General Secretariat of Industry and Energy Development |
The modification establishes that the equipment can continue to be installed and used on the network, but under the new technical conditions set out in the resolution. This means that previous requirements have been updated and the new ones are those required from April 1, 2026.
Economic and operational impact
The impact of this resolution is primarily operational, with economic consequences arising from the need to review and, where necessary, adapt existing installations or future installation processes.
- New installations: Any installation of the 4MA72 Size 4 model carried out from April 1, 2026 must comply with the new technical requirements. Proceeding without verifying this compliance may result in the installation not being approved.
- Existing installations: Companies that already have this equipment in operation must conduct a review to determine whether the modification affects their equipment in operation. Depending on the outcome, corrective actions may be necessary.
- Review cost: The resolution does not establish specific amounts, but technical review of high-voltage equipment requires specialized personnel and may involve installation shutdowns or additional inspections.
- Non-compliance risk: Operating with equipment that does not meet current authorization requirements may result in problems during regulatory inspections or when renewing installation permits.
Who does it affect?
- Manufacturers: Alce Electrik and any company that distributes or markets the 4MA72 Size 4 model in Spain must ensure that technical documentation and sales processes reflect the new authorization conditions.
- Installation companies: Those that have carried out or are carrying out installations of this model on high-voltage networks must verify that their work complies with the new technical requirements before proceeding with new installations.
- Electrical network operators: Companies that operate distribution or transmission networks at high voltage and have the 4MA72 Size 4 model installed must review whether their equipment in operation is affected by the modification.
- Maintenance managers: Technicians and maintenance companies for high-voltage electrical installations that work with this specific model.
Practical example
An electrical energy distribution company has several current measurement transformers model 4MA72, Size 4 variant from Alce Electrik installed in high-voltage substations on its network.
With the entry into force of this resolution on April 1, 2026, the company's technical manager must:
- Identify all units of the 4MA72 Size 4 model installed on its network.
- Consult the new technical conditions established in the resolution to determine whether the equipment in operation complies with the new requirements or if any action is required.
- If the company plans to install new units of this model, verify compliance with the new requirements before proceeding, as the modified authorization is the one in force from April 1, 2026.
- Document the result of the review to be able to prove it during a regulatory inspection.
If the company does not conduct this review and operates with equipment that does not meet the new conditions, it may encounter problems during technical audits or in processes to renew installation authorizations.
What should companies do now?
- Identify the equipment fleet: Locate all units of the Alce Electrik 4MA72 model, Size 4 variant, installed in own facilities or managed.
- Consult the complete resolution: Access the full text of the Resolution BOE-A-2026-9522 to know exactly what the new technical conditions established are.
- Review equipment in operation: Determine whether already installed equipment complies with the new conditions or if any corrective action is required. This review must be documented.
- Halt new installations until compliance is verified: Do not proceed with new installations of the 4MA72 Size 4 model without having verified that the new technical requirements of the modified authorization are met.
- Coordinate with Alce Electrik: If there are doubts about the technical scope of the modification, contact the manufacturer to obtain updated documentation on the model and current installation conditions.
- Update internal procedures: Review installation and maintenance protocols that reference this model to incorporate the new requirements.
Frequently asked questions
What changes in the authorization of the Alce Electrik 4MA72 Size 4 transformer?
The General Secretariat of Industry and Energy Development has modified the authorization conditions of the 4MA72 model, Size 4 variant, from Alce Electrik. This implies new technical requirements that must be met before proceeding with new installations on the electrical network.
Do I have to review my 4MA72 equipment already installed?
Yes. The resolution expressly states that companies that already have this model installed must review whether the modification affects their equipment in operation. It is not enough to assume that existing equipment is compliant.
When does the new authorization come into effect?
The resolution came into effect on April 1, 2026. This is the date from which the new technical conditions are mandatory for any new installation of the model 4MA72 Size 4.
What happens if I install the 4MA72 Size 4 without verifying the new requirements?
Installing equipment without complying with current authorization requirements can result in the installation not being approved during regulatory inspections, problems in the renewal of installation permits, or the need to remove or modify the equipment.
Where can I find the complete technical requirements?
The complete technical requirements are in the Resolution BOE-A-2026-9522, published in the Official State Gazette (BOE) on May 1, 2026.