SIST EN 50216-5:2002

Power transformer and reactor fittings -- Part 5: Liquid level, pressure and flow indicators, pressure relief devices and dehydrating breathers

EN 50216-5 specifies the liquid level, pressure and flow indicators, pressure relief devices and dehydrating breathers for power transformer and reactor fittings. Except where otherwise specified or implied herein the above fittings shall comply with the requirements of EN 50216-1.

Zubehör für Transformatoren und Drosselspulen -- Teil 5: Flüssigkeitsstandanzeiger, Druckanzeigeeinrichtungen und Durchflussmesser, Druckentlastungsventile und Luftentfeuchter

EN 50216-5 legt Anforderungen an Flüssigkeitsstandanzeiger, Druckanzeigeeinrichtungen und Durchflussanzeiger, Druckentlastungsventile und Luftentfeuchter als Zubehör für Transformatoren und Drosselspulen fest. Mit Ausnahme von anderweitigen Festlegungen oder solchen, die hierin enthalten sind, muss das angegebene Zubehör mit den Anforderungen von EN 50216-1 übereinstimmen.

Accessoires pour transformateurs de puissance et bobines d'inductance -- Partie 5: Indicateurs de niveau de liquide isolant, manomètres et indicateurs de circulation de liquide isolant, soupapes de sûreté et assécheurs d'air

La EN 50216-5 spécifie les indicateurs de niveau de liquide isolant, les manomètres et les indicateurs de circulation de liquide isolant, les soupapes de sûreté et les assécheurs d’air pour transformateurs de puissance et bobines d'inductance. Sauf spécification contraire ici, les accessoires ci-dessus doivent être conformes aux exigences de la EN 50216-1.

Power transformer and reactor fittings - Part 5: Liquid level, pressure devices and flow indicators

General Information

• Status: Withdrawn
• Publication Date: 30-Sep-2002
• Withdrawal Date: 15-Aug-2023
• ICS: 29.180 - Transformers. Reactors
• Technical Committee: ETR - Power transformers
• Current Stage: 9900 - Withdrawal (Adopted Project)
• Start Date: 27-Jul-2023
• Due Date: 19-Aug-2023
• Completion Date: 16-Aug-2023
• Ref Project: EN 50216-5:2002 - Power transformer and reactor fittings - Part 5: Liquid level, pressure and flow indicators, pressure relief devices and dehydrating breathers

Relations

• Amended By: SIST EN 50216-5:2002/A1:2004 - Power transformer and reactor fittings -- Part 5: Liquid level, pressure and flow indicators, pressure relief devices and dehydrating breathers
• Effective Date: 29-Jan-2023
• Replaced By: SIST EN IEC 60076-22-7:2020 - Power transformers - Part 22-7: Power transformer and reactor fittings - Accessories and fittings
• Effective Date: 16-Mar-2021
• Replaced By: SIST EN IEC 60076-22-1:2019 - Power transformers - Part 22-1: Power transformer and reactor fittings – Protective devices
• Effective Date: 16-Mar-2021
• Amended By: SIST EN 50216-5:2002/A3:2007 - Power transformer and reactor fittings -- Part 5: Liquid level, pressure and flow indicators, pressure relief devices and dehydrating breathers
• Effective Date: 01-Jan-2007
• Amended By: SIST EN 50216-5:2002/A2:2006 - Power transformer and reactor fittings -- Part 5: Liquid level, pressure and flow indicators, pressure relief devices and dehydrating breathers
• Effective Date: 01-Jan-2006
• Amended By: SIST EN 50216-5:2002/A1:2004 - Power transformer and reactor fittings -- Part 5: Liquid level, pressure and flow indicators, pressure relief devices and dehydrating breathers
• Effective Date: 01-Feb-2004
• Amended By: SIST EN 50216-5:2002/A2:2006 - Power transformer and reactor fittings -- Part 5: Liquid level, pressure and flow indicators, pressure relief devices and dehydrating breathers
• Effective Date: 28-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 50216-5:2002
01-oktober-2002
Power transformer and reactor fittings - Part 5: Liquid level, pressure devices and
flow indicators
Power transformer and reactor fittings -- Part 5: Liquid level, pressure and flow
indicators, pressure relief devices and dehydrating breathers
Zubehör für Transformatoren und Drosselspulen -- Teil 5: Flüssigkeitsstandanzeiger,
Druckanzeigeeinrichtungen und Durchflussmesser, Druckentlastungsventile und
Luftentfeuchter
Accessoires pour transformateurs de puissance et bobines d'inductance -- Partie 5:
Indicateurs de niveau de liquide isolant, manomètres et indicateurs de circulation de
liquide isolant, soupapes de sûreté et assécheurs d'air
Ta slovenski standard je istoveten z: EN 50216-5:2002
ICS:
29.180 Transformatorji. Dušilke Transformers. Reactors
SIST EN 50216-5:2002 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 50216-5:2002

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SIST EN 50216-5:2002
EUROPEAN STANDARD EN 50216-5
NORME EUROPÉENNE
EUROPÄISCHE NORM January 2002
ICS 29.180
English version
Power transformer and reactor fittings
Part 5: Liquid level, pressure devices and flow indicators
Accessoires pour transformateurs Zubehör für Transformatoren
de puissance et bobines d'inductance und Drosselspulen
Partie 5: Indicateurs de niveau Teil 5: Flüssigkeitsstandanzeiger,
de liquide isolant, manomètres Druckanzeigeeinrichtungen
et indicateurs de circulation und Durchflussmesser
de liquide isolant
This European Standard was approved by CENELEC on 2001-09-25. 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.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.
This European Standard 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 Central Secretariat has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic,
Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands,
Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels
© 2002 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 50216-5:2002 E

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SIST EN 50216-5:2002
EN 50216-5:2002 - 2 -
Foreword
This European Standard was prepared by the Technical Committee CENELEC TC 14, Power
transformers.
The text of the draft was submitted to the formal vote and was approved by CENELEC as
EN 50216-5 on 2001-09-25.
The following dates were fixed:
- latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2002-10-01
- latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2004-10-01
EN 50216-5 is to be read in conjunction with EN 50216-1.
__________

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SIST EN 50216-5:2002
- 3 - EN 50216-5:2002
Contents
Page
1 Scope.4
2 Normative references .4
3 Direct reading dial type liquid level indicators.4
3.1 General .4
3.2 Electrical characteristics of switch.5
3.3 Tests .5
4 Liquid pressure gauges - Differential pressure gauges.6
4.1 General .6
4.2 Electrical characteristics of switch.6
4.3 Tests .7
5 Liquid flow indicators .7
5.1 General .7
5.2 Electrical characteristics of switch.8
5.3 Tests .9

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SIST EN 50216-5:2002
EN 50216-5:2002 - 4 -
1 Scope
EN 50216-5 specifies the liquid level, pressure and flow indicators for power transformer and
reactor fittings.
Except where otherwise specified or implied herein, liquid level, pressure and flow indicators
shall comply with the requirements of EN 50216-1.
2 Normative references
Addition to EN 50216-1:
EN 60947-5-1 1997 Low-voltage switchgear and controlgear - Part 5-1: Control circuits
+ A12 1999 devices and switching elements - Electromechanical control circuit
                     devices (IEC 60947-5-1:1997)
3 Direct reading dial type liquid level indicators
3.1 General
Where the conservator for transformer tanks or other separated expansion chambers are
required to be provided with a liquid level indicator of the direct reading dial type, it shall
comply with the following:
- In case of electric alarm contacts, a terminal box shall be provided with one earth terminal.
2
- The terminals shall allow for connection of cables having a cross section area of 1,5 mm to
4 mm².
- The thread for the cable glands should be either Pg 16 or M20 x 1,5 to be agreed between
supplier and purchaser.
- The liquid level indicator shall be fitted with a solid float operating on the displacement
principle (hollow floats are not permitted). There shall be no direct mechanical contact
between the float mechanism and the dial indicator.
- The liquid level indicator shall withstand seismic and operational vibrations and
environmental conditions in accordance with EN 50216-1.
- Unless otherwise agreed, the liquid level at 20 °C and the minimum and the maximum level
shall be indelibly and clearly marked.
- The movement of the pointer form the minimum to the maximum level shall be clockwise
when facing the dial.
- The mounting arrangement of the indicator shall be such that it can be dismantled and
removed from the outside of the conservator. It shall be possible to remove the dial,
maintain or replace switches, without emptying the conservator.
- The marking of the dial plate shall be indelible.
3.2 Electrical characteristics of switch
This device is based on EN 60947-5-1.

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SIST EN 50216-5:2002
- 5 - EN 50216-5:2002
3.2.1 General
The purchaser shall specify whether the switch shall have normally open, normally closed or
change over contacts. Unless otherwise specified, the supplier shall provide switches with
change over contacts.
The switch shall be able to operate at between maximum 5 % and minimum 95 % of the
pointer deflection range.
3.2.2 Currents
The rated current shall be 2 A r.m.s. and the short time current 10 A r.m.s. for 30 ms.
Other values may be agreed between purchaser and suppli
...