NF EN 50243 : 2004

Foreword
Introduction
1 Scope
2 Normative references
3 Definitions
4 Requirements
  4.1 Application
  4.2 Standard values of highest voltage for
      equipment (U[m])
  4.3 Standard values of rated current (l[r])
  4.4 Compliance
  4.5 Common dimensions and creepage distances of
      bushings type A and type B
  4.6 Parts list according to bushing type A
  4.7 Parts list according to bushing type B
Annex A (normative) Detail drawings of components
A.1 Insulator (Item N degree 1)
A.2 Conductor tube (Item N degree 2)
A.3 Upper cap (Item N degree 4)
A.4 Lower cap (Item N degree 6)
A.5 Nut (Item N degree 3)
A.6 Sealing ring (Item N degree 5)
A.7 Flat gasket (Item N degree 9)
A.8 Flat gasket (Item N degree 18)
A.9 Clamping ring (Item N degree 16)
A.10 Interlayer (Item N degree 13)
A.11 Compression ring (Item N degree 11)
A.12 Retaining ring (Item N degree 12)
A.13 Flat gasket (Item N degree 10)
A.14 Clamping paw (Item N degree 17)

Applies to ceramic insulated outdoor bushings for highest voltages for equipment of 24 kV and 36 kV, with rated currents of 5 kA and 8 kA and frequencies from 15 Hz up to 60 Hz for insulating liquid filled transformers and gives dimensions to ensure interchangeability and adequate mounting of bushings.