What is EN 61558-2-12:2020?

EN 61558-2-12:2020 is an international standard that specifies safety requirements for transformers, power supplies, and similar equipment used in electrical installations. This technical article aims to provide an in-depth understanding of this standard and its significance in ensuring the safety of such devices.

Scope of EN 61558-2-12:2020

The scope of EN 61558-2-12:2020 covers safety requirements for transformers for construction sites, agriculture, and similar applications. It also includes requirements for temporary power supply units and battery chargers used in these environments. The standard lays down specific provisions to protect against electric shock, fire hazards, and other potential risks associated with the use of these electrical equipment.

Main Requirements of EN 61558-2-12:2020

EN 61558-2-12:2020 stipulates several important requirements to ensure the safety and reliable operation of transformers and power supplies. These requirements include insulation properties, temperature limits, protective earthing, and secondary circuit protection. The standard defines clear guidelines for design, materials, and performance tests to meet these requirements.

One key requirement is the separation of primary and secondary circuits, providing isolation and preventing the risk of electric shock. Transformers and power supplies must be constructed to ensure proper insulation between the primary and secondary windings. The standard also sets limits on temperature rise during normal operation, which helps prevent overheating and potential fire hazards.

Compliance and Certification

Manufacturers are responsible for ensuring their products' compliance with EN 61558-2-12:2020. Compliance can be demonstrated through thorough testing and certification by accredited laboratories or certification bodies. Compliance with this standard ensures that transformers and power supplies meet essential safety requirements, minimizing the risks associated with electrical installations.

CE marking is an important indication of compliance with EN 61558-2-12:2020 for products sold within the European Union. The CE mark indicates that the product has been assessed and meets all relevant safety requirements. It is essential for manufacturers to obtain third-party certifications and carry out regular audits to maintain compliance with the standard.

In conclusion

EN 61558-2-12:2020 plays a crucial role in ensuring the safety and reliability of transformers, power supplies, and similar equipment used in electrical installations. Compliance with this standard guarantees that these devices are designed, manufactured, and tested according to established safety requirements. By adhering to EN 61558-2-12:2020, manufacturers can provide safe and reliable equipment to support various industries' electrical infrastructure needs.