Various normative documents and certifications guarantee the quality of the supply and distribution systems, thus limiting power losses.
Standard EN 62040 & European Code of Conduct on the efficiency and quality of UPS
For uninterruptible power supply (UPS) systems
Standard IEC 60076
For power transformers. Refer more specifically to standards EN 60076-1 to 60776-5 and EN 60076-11 version 2004 (for dry-type power transformers)
Standard EN 50588-1
This standard, in accordance with EU Regulation 548/2014, replaces and supersedes the previous EN 50541-1. It has been applicable since 2015 and applies to the medium power transformers 50 Hz, with highest voltage for equipment not exceeding 36 kV.
Standards IEC 60831-1 and 60831-2
These define the electrical characteristics and robustness tests for capacitors.
Standards IEC CEI 61439-1 and IEC CEI 61439-2
For low-voltage switchgear and controlgear assemblies.