What is BS EN 50588‑4 - Medium power transformers about?
BS EN 50588‑4 is a European standard that discusses the medium power transformers 50Hz with highest voltage for equipment not exceeding 36kV.
BS EN 50588‑4 in cable boxes described in correspond to cable boxes are suitable for assembly on the cover of oil-immersed distribution transformers meeting the requirements of EN 50588-2.
Cable boxes are air-filled, metal- or non-metal enclosed, for high- and/or low-voltage connections in the following variations:
High-voltage side -
- Connection directly to bushings;
- Connection via busbar system.
Low-voltage side -
- Connection directly to bushings (maximum of four connectors per bushing);
- Connection via busbar system.
Who is BS EN 50588‑4 - Medium power transformers for?
BS EN 50588‑4 on transformers with cable boxes is applicable to:
- Manufacturer of power transformer
- Electrical engineer
- Quality testing of medium power transformers
Why should you use BS EN 50588‑4 - Medium power transformers?
A medium-voltage distribution transformer or service transformer is a transformer type that provides the final voltage transformation in the electric power distribution system, stepping down the voltage used in the distribution lines to the level used by the customer. A transformer's main function is to step-up or step down the voltage from the primary to the secondary windings.
BS EN 50588‑4 provides you with the design where the cable boxes are fastened on transformer covers by screws or by welding. For convenient cable access, cable boxes are provided with covered openings with handles
With obedience and compliance to BS EN 50588‑4, you can efficiently manufacture high-quality transformers with cable boxes for medium power transformers.
What’s changed since the last update? 
BS EN 50588‑4:2018 supersedes BS EN 50464‑2‑3:2007, which is withdrawn.
