prEN 50719

Connecting terminal flags for bushings from 250A to 4 000 A for insulating liquid filled transformers

This standard is applicable to vertical connecting terminal flags for insulated bushings with rated currents from 250 A to 4 000 A and frequencies from 15 Hz to 60 Hz for liquid immersed equipment.

Anschlussfahnen für Durchführungen von 250 A bis 4 000 A für flüssigkeitsgefüllte Transformatoren

Cosses à drapeau pour traversées de 250 A à 4 000 A pour les transformateurs à remplissage de liquide isolant

La présente norme s'applique aux cosses à drapeau vertical des traversées isolées pour des courants assignés compris entre 250 A et 4 000 A et des fréquences comprises entre 15 Hz et 60 Hz utilisées avec des équipements immergés dans un liquide.

Povezovalni ploščati priključki za skoznjike od 250 A do 4000 A za transformatorje, polnjene z izolacijsko tekočino

General Information

• Status: Not Published
• Publication Date: 19-Mar-2023
• ICS: 29.180 - Transformers. Reactors
• Technical Committee: CLC/TC 36A - Insulated bushings
• Drafting Committee: CLC/TC 36A - Insulated bushings
• Ref Project: oSIST prEN 50719:2023 - Connecting terminal flags for bushings from 250A to 4 000 A for insulating liquid filled transformers

Relations

• Revised: EN 50386:2010/A1:2013 - Bushings up to 1 kV and from 250 A to 5 kA, for liquid filled transformers
• Effective Date: 25-Sep-2018
• Amends: EN 50386:2010 - Bushings up to 1 kV and from 250 A to 5 kA, for liquid filled transformers
• Effective Date: 25-Sep-2018

Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN 50719:2023
01-marec-2023
Povezovalni ploščati priključki za skoznjike od 250 A do 4000 A za transformatorje,
polnjene z izolacijsko tekočino
Connecting terminal flags for bushings from 250A to 4 000 A for insulating liquid filled
transformers
Durchführungen bis 1 kV und von 250 A bis 5 kA für flüssigkeitsgefüllte Transformatoren
Cosses à drapeau pour traversées de 250 A à 4 000 A pour les transformateurs à
remplissage de liquide isolant
Ta slovenski standard je istoveten z: prEN 50719
ICS:
29.080.20 Skoznjiki Bushings
29.180 Transformatorji. Dušilke Transformers. Reactors
oSIST prEN 50719:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 50719:2023

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oSIST prEN 50719:2023


EUROPEAN STANDARD DRAFT
prEN 50719
NORME EUROPÉENNE

EUROPÄISCHE NORM

January 2023
ICS 29.180 -
English Version
Connective terminal flags for bushings from 250A to 4 000A for
insulating liquid filled transformers
Traversées jusqu'à 1 kV et de 250 A à 5 kA, pour Durchführungen bis 1 kV und von 250 A bis 5 kA für
transformateurs à remplissage de liquide flüssigkeitsgefüllte Transformatoren
This draft European Standard is submitted to CENELEC members for enquiry.
Deadline for CENELEC: 2023-04-14.

It has been drawn up by CLC/TC 36A.

If this draft becomes a European Standard, CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which
stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CENELEC 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.



European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Project: 68152 Ref. No. prEN 50719 E

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oSIST prEN 50719:2023
prEN 50719:2023 (E)
8 Contents Page
9 European foreword . 3
10 1 Scope . 4
11 2 Normative references . 4
12 3 Terms and definitions . 4
13 4 Requirements . 4
14 4.1 Manufacturing process . 4
15 4.2 Material . 4
16 4.3 General requirements . 4
17 4.4 Standard values of rated current (Ir) . 5
18 4.5 Compliance. 5
19 5 Flag common dimensions . 5
20 5.1 General . 5
21 5.2 Type 250 A . 5
22 5.3 Type 630 A . 6
23 5.4 Type 1 250 A . 8
24 5.5 Type 2 000 A . 9
25 5.6 Type 3 150 A . 10
26 5.7 Type 4 000 A . 11
27 6 Tests . 12
28 6.1 Type tests . 12
29 6.1.1 Temperature rise tests . 12
30 6.1.2 Acceptance . 12
31 6.2 Routine tests . 12
32 Bibliography . 13
33
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