prEN 50XXX

Specification for high-voltage busbars and busbar connections prEN 50XXX

Scope

To revise BS 159 of 1957 which relates to busbars and busbar connections which are components of a.c. high-voltage electrical systems (above 1kV) and are composed of metal such as copper or aluminium, with air, oil, gas, solid or semi-solid materials as principal insulation. The busbars and busbar connections may or may not be provided with an enclosure of metal or insulating material. The standard also applies in part to high-voltage d.c. connections above 1.5 kV of a similar character between items of electrical power equipment