SIST EN 50180-3:2016/A1:2018

Bushings above 1 kV up to 52 kV and from 250 A to 3,15 kA for liquid filled transformers - Part 3: Requirements for bushing fixations

Integrate the not accepted changes of the work of WG1 proposed in the meeting on 23th October 2014 in EN50180-3

Durchführungen über 1 kV bis 52 kV und von 250 A bis 3,15 kA für flüssigkeitsgefüllte Transformatoren - Teil 3: Anforderungen an Einzelteile der Befestigung

Traversées de tensions supérieures à 1 kV jusqu'à 52 kV et de 250 A à 3,15 kA pour transformateurs immergés dans un liquide - Partie 3 : Exigences relatives aux fixations de traversée

Skoznjiki za napetosti nad 1 kV do 52 kV in toke od 250 A do 3,15 kA za transformatorje, polnjene s tekočinami - 3. del: Zahteve za pritrditev skoznjikov

General Information

• Status: Published
• Publication Date: 03-Jan-2018
• ICS: 29.080.20 - Bushings
• ICS: 29.180 - Transformers. Reactors
• Technical Committee: IZL - Insulators
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 03-Jul-2017
• Due Date: 07-Sep-2017
• Completion Date: 04-Jan-2018
• Ref Project: EN 50180-3:2015/A1:2017 - Bushings above 1 kV up to 52 kV and from 250 A to 3,15 kA for liquid filled transformers - Part 3: Requirements for bushing fixations

Relations

• Amends: SIST EN 50180-3:2016 - Bushings above 1 kV up to 52 kV and from 250 A to 3,15 kA for liquid filled transformers - Part 3: Requirements for bushing fixations
• Effective Date: 01-Dec-2015

Overview

EN 50180-3:2015/A1:2017 is a CENELEC amendment prepared by CLC/TC 36A that updates Part 3 of the EN 50180 series, addressing requirements for bushing fixations for liquid-filled transformers. The amendment integrates changes related to fixation designs and dimensions for bushings rated above 1 kV up to 52 kV and rated currents from 250 A to 3,15 kA. It clarifies scope elements, replaces key tables and figure descriptions, and aligns fixation components for improved interchangeability between manufacturers and purchasers.

This document is intended for manufacturers, test laboratories, procurement teams and design engineers working with transformer bushings and their mechanical interfaces.

Key Topics

• Scope modification: The amendment removes two paragraphs from Clause 1 that previously repeated dimensions from EN 50180-1 and extended the standard to 52 kV fastenings. This clarifies the document boundary and avoids duplication.

• Fixation types and applicability: A new paragraph was added to Clause 4.1 specifying that Table 1 shows the types of fixation to be used for bushings with voltages from 12 kV to 52 kV.

• Replaced tables and figures: The amendment replaces the whole Table 1 (dimensions for fixation components for 12–52 kV) and Table 2 (flange ring dimensions) and updates the designation and title of Figure 3 to list flange rings B, C1/C2 and D1/D2 with a note that different shapes are allowed.

• Interchangeability note: The amendment explicitly notes that diameters may deviate from EN 50180-1:2015 for certain current classes and that the required diameter shall be agreed between purchaser and manufacturer to enable interchangeability.

Applications

This amendment has direct practical value in:

• Procurement and specification - provides clear fixation type and dimensional references to include in purchase orders and technical specifications.
• Mechanical design - ensures designers reference the updated flange ring and clamping component dimensions for bushings 12–52 kV and 250 A–3,15 kA.
• Manufacturing and quality control - clarifies tolerances and interchangeability requirements, reducing non-conformances and rework.
• Installation and maintenance - standardised fixation details simplify replacement, retrofit and maintenance planning for liquid-filled transformers.

Benefits include improved compatibility between manufacturers, reduced procurement ambiguity, and clearer guidance for engineers and technicians.

Related Standards

• EN 50180-1:2015 - referenced for original bushing dimensions (the amendment notes where diameters may deviate and recommends purchaser/manufacturer agreement).
• CENELEC/CENELEC Technical Committee CLC/TC 36A publications - for broader guidance on insulated bushings.

For implementation dates and national adoption details consult the CENELEC Management Centre. For procurement and detailed dimensional tables and figures, refer to the full EN 50180-3:2015/A1:2017 amendment text.

Standards Content (Sample)

SLOVENSKI STANDARD
01-februar-2018
6NR]QMLNL]DQDSHWRVWLQDGN9GRN9LQWRNHRG$GRN$]D
WUDQVIRUPDWRUMHSROQMHQHVWHNRþLQDPLGHO=DKWHYH]DSULWUGLWHYVNR]QMLNRY
Bushings above 1 kV up to 52 kV and from 250 A to 3,15 kA for liquid filled transformers
- Part 3: Requirements for bushing fixations
Durchführungen über 1 kV bis 52 kV und von 250 A bis 3,15 kA für flüssigkeitsgefüllte
Transformatoren - Teil 3: Anforderungen an Einzelteile der Befestigung
Traversées de tensions supérieures à 1 kV jusqu'à 52 kV et de 250 A à 3,15 kA pour
transformateurs immergés dans un liquide - Partie 3 : Exigences relatives aux fixations
de traversée
Ta slovenski standard je istoveten z: EN 50180-3:2015/A1:2017
ICS:
29.080.20 Skoznjiki Bushings
29.180 Transformatorji. Dušilke Transformers. Reactors
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 50180-3:2015/A1

NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2017
ICS 29.080.20
English Version
Bushings above 1 kV up to 52 kV and from 250 A to 3,15 kA for
liquid filled transformers - Part 3: Requirements for bushing
fixations
Traversées de tensions supérieures à 1 kV jusqu'à 52 kV et Durchführungen über 1 kV bis 52 kV und von 250 A bis
de 250 A à 3,15 kA pour transformateurs immergés dans un 3,15 kA für flüssigkeitsgefüllte Transformatoren - Teil 3:
liquide - Partie 3 : Exigences relatives aux fixations de Anforderungen an Einzelteile der Befestigung
traversée
This amendment A1 modifies the European Standard EN 50180-3:2015; it was approved by CENELEC on 2017-05-10. CENELEC
members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this amendment the
status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This amendment exists in three official versions (English, French, German). A version in any other language made by translation under the
responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as
the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden,
Switzerland, Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 50180-3:2015/A1:2017 E

Contents Page
European foreword . 3
1 Modification to Clause 1, Scope .
...