What is BS EN 50299-2‒ Oil-immersed cable connection assemblies about?
BS EN 50299-2 is the second part of an international multi-series standard that focuses on cable connection assemblies.
BS EN 50299-2 covers the oil-immersed single-phase connection assemblies of cables for transformers and reactors designed in accordance with the EN 60076 series. The term "transformer" is used as a common definition for transformer and reactor.
If no separate cable connection box is used and dry-type cable terminations are directly installed into the transformer tank the requirements of this standard should be followed.
BS EN 50299-2 complements and amends the relevant standards and applies to dry-type cable terminations for power cables with extruded insulation which may be used with similar interfaces for the cable entrance in switchgear applications according to EN 62271-209.
BS EN 50299-2 applies to oil-filled cable connection boxes of transformers with the highest voltage for equipment from Um = 72.5 kV to 550 kV, including the conductor current terminal with the removable link between the transformer and the dry-type cable termination.
Who is BS EN 50299-2‒ Oil-immersed cable connection assemblies for?
BS EN 50299-2 on Oil-immersed cable connection assemblies is useful for:
- Manufacturers and suppliers of cable connection assemblies
- Safety certification providing entities for electrical equipment
- Dealers and distributors of cable connection assemblies
- Designers of cable connection assemblies
- Regulatory authorities
Why should you use BS EN 50299-2‒ Oil-immersed cable connection assemblies?
An oil-immersed cable connection is required where cables carry high voltages and comprise an elastomeric electrical stress control component in intimate contact with a separating insulation barrier (insulator or socket) between the extruded cable insulation and the liquid insulation of the transformer cable connection box.
BS EN 50299-2 lays down the technical specifications for oil-immersed cable connection assemblies. It gives you detailed information about the rated values, preferred values, currents, and voltages for the oil-immersed cable connection assemblies that are in compliance with global standards.
BS EN 50299-2 also states the requirements such as connection interface, mechanical requirements, shielding electrode, insulating liquids, dimensions, material compatibility needed to construct high quality, standardized connection assembly for transformers and reactors.
BS EN 50299-2 also serves the purpose of establishing the cable-connection assemblies such as electrical and mechanical requirements including interchangeability, limits of supply and tests to be carried out that help the users for investigating the performance characteristics of oil-immersed cable connection assemblies.
