NF EN 50243 : 2004
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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OUTDOOR BUSHINGS FOR 24 KV AND 36 KV AND FOR 5 KA AND 8 KA, FOR LIQUID FILLED TRANSFORMERS
12-01-2013
16-01-2023
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.
| Committee |
CLC/TC 36A
|
| DevelopmentNote |
Indice de classement: C66-557 (01/2005)
|
| DocumentType |
Standard
|
| PublisherName |
Association Francaise de Normalisation
|
| Status |
Superseded
|
| SupersededBy |
| Standards | Relationship |
| DIN EN 50243:2003-01 | Identical |
| NEN EN 50243 : 2002 | Identical |
| NBN EN 50243 : 2002 | Identical |
| I.S. EN 50243:2002 | Identical |
| BS EN 50243:2002 | Identical |
| EN 50243:2002 | Identical |
| UNE-EN 50243:2004 | Identical |
| NF EN 20286-2 : 1993 | ISO SYSTEM OF LIMITS AND FITS - PART 2: TABLES OF STANDARD TOLERANCE GRADES AND LIMIT DEVIATIONS FOR HOLES AND SHAFTS |
| ISO 1101:2017 | Geometrical product specifications (GPS) — Geometrical tolerancing — Tolerances of form, orientation, location and run-out |
| NF ISO 261 : 1999 | ISO GENERAL PURPOSE METRIC THREADS - GENERAL PLAN |
| NF EN ISO 1302 : 2002 | GEOMETRICAL PRODUCT SPECIFICATION (GPS) - INDICATION OF SURFACE TEXTURE IN TECHNICAL PRODUCT DOCUMENTATION |
| IEC 60137:2017 | Insulated bushings for alternating voltages above 1000 V |
| NF EN 60672-3 : 1998 | CERAMIC AND GLASS-INSULATING MATERIALS - PART 3: SPECIFICATIONS FOR INDIVIDUAL MATERIALS |
| HD 329 : 200S1 | TESTS ON HOLLOW INSULATORS FOR USE IN ELECTRICAL EQUIPMENT |