EN 50216-12:2011

Power transformer and reactor fittings - Part 12: Fans

EN 50216 12 deals with fans for oil-to-air coolers used for transformers as well as fans used for blowing out radiators. Only fans operating axially are dealt with in this standard specification. This standard specification defines the dimensions and requirements for ensuring fan interchangeability and uniform fan assembly.

Zubehör für Transformatoren und Drosselspulen - Teil 12: Ventilatoren

Accessoires pour transformateurs de puissance et bobines d'inductance - Partie 12: Ventilateurs

Armature močnostnih transformatorjev in dušilk - 12. del: Ventilatorji

EN 50216-12 naslavlja ventilatorje za hladilnike olje-zrak, uporabljene za transformatorje, in ventilatorje, uporabljene za izpihovanje radiatorjev. Samo ventilatorji, ki delujejo osno, so zajeti v tej specifikaciji standarda. Ta specifikacija standarda določa dimenzije in zahteve za zagotovitev zamenljivosti ventilatorja in enotno sestavo ventilatorja.

General Information

• Status: Withdrawn
• Publication Date: 31-Mar-2011
• Withdrawal Date: 20-Mar-2014
• ICS: 29.180 - Transformers. Reactors
• Technical Committee: CLC/TC 14 - Power transformers
• Drafting Committee: IEC/TC 14 - IEC_TC_14
• Parallel Committee: IEC/TC 14 - IEC_TC_14
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Start Date: 22-Feb-2024
• Completion Date: 22-Feb-2024
• Ref Project: SIST EN 50216-12:2011 - Power transformer and reactor fittings - Part 12: Fans

Relations

• Replaced By: EN IEC 60076-22-6:2021 - Power transformers - Part 22-6: Power transformer and reactor fittings - Electric fans for transformers
• Effective Date: 23-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-junij-2011
$UPDWXUHPRþQRVWQLKWUDQVIRUPDWRUMHYLQGXãLONGHO9HQWLODWRUML
Power transformer and reactor fittings - Part 12: Fans
Zubehör für Transformatoren und Drosselspulen - Teil 12: Ventilatoren
Accessoires pour transformateurs de puissance et bobines d'inductance - Partie 12:
Ventilateurs
Ta slovenski standard je istoveten z: EN 50216-12:2011
ICS:
29.180 Transformatorji. Dušilke Transformers. Reactors
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 50216-12
NORME EUROPÉENNE
April 2011
EUROPÄISCHE NORM
ICS 29.180
English version
Power transformer and reactor fittings -
Part 12: Fans
Accessoires pour transformateurs de Zubehör für Transformatoren und
puissance et bobines d'inductance - Drosselspulen -
Partie 12: Ventilateurs Teil 12: Ventilatoren

This European Standard was approved by CENELEC on 2011-03-21. 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, 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, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2011 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 50216-12:2011 E
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 50216-12 on 2011-03-21.
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) 2012-03-21
– latest date by which the national standards conflicting

with the EN have to be withdrawn
(dow) 2014-03-21
EN 50216-12 is to be read in conjunction with EN 50216-1, Power transformer and reactor fittings –
Part 1: General.
___________________
– 3 – EN 50216-12:2011
Contents
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 5
4 Requirements . 5
4.1 Rated values . 5
4.2 Rated power and noise . 6
4.3 Design of the drive . 6
4.4 Design of the connection box . 6
4.5 Design of the housing . 6
4.6 Design of the fan wheel . 6
4.7 Design of the protective grating / basket guard . 6
4.8 Materials . 7
4.9 Mechanical design . 7
4.10 Surface protective coating . 7
5 Identification . 7
5.1 Specifications for the fan rating plate . 7
5.2 Specifications for the motor rating plate . 8
6 Tests . 8
6.1 General . 8
6.2 Routine tests . 8
6.3 Type tests . 8
7 Transport and storage . 8
8 Installation and operation, operational performance . 9
9 Technical documentation . 9
Annex A (normative) Ordering designations .10
Annex B (informative) Performance of the fans .11
Annex C (informative) Design example .12
Bibliography .13

Figures
Figure B.1 – Performance of the fans . 11
Figure C.1 – Design example . 12

1 Scope
EN 50216-12 deals with fans for oil-to-air coolers used for transformers as well as fans used for
blowing out radiators. Only fans operating axially are dealt with in this standard specification.
This standard specification defines the dimensions and requirements for ensuring fan
interchangeability and uniform fan assembly.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
EN 22768-1 General tolerances – Part 1: Tolerances for linear and angular dimensions
without individual tolerance indications (ISO 2768-1)
EN 22768-2 General tolerances – Part 2: Geometrical tolerances for features without
individual tolerance indications (ISO 2768-2)
EN 50216-1:2002 Power transformer and reactor fittings – Part 1: General
EN 50262 Cable glands for electrical installations
EN 60034-1 Rotating electrical machines – Part 1: Rating and performance (IEC 60034-1)
EN 60529 Degrees of protection provided by enclosures (IP Code) (IEC 60529)
EN 60721-3-4 Classification of environmental conditions – Part 3: Classification of groups of
environmental parameters and their severities – Section 4: Stationary use at
non–weather protected locations (IEC 60721-3-4)
EN ISO 3506-1 Mechanical properties of corrosion-resistant stainless steel fasteners –
Part 1: Bolts, screws and studs (ISO 3506-1)
EN ISO 5801 Industrial fans – Performance testing using standardized airways (ISO 5801)
EN ISO 13857 Safety of machinery – Safety distances to prevent hazard zones being reached
by upper and lower limbs (ISO 13857)
ISO 10816-1 Mechanical vibration – Evaluation of machine vibration by measurements on
non-rotating parts – Part 1: General guidelines
ISO 13347-1 Industrial fans – Determination of fan sound power levels under standardized
laboratory conditions – Part 1: General overview
ISO 13347-3 Industrial fans – Determination of fan sound power levels under standardized
laboratory conditions – Part 3: Enveloping surface methods
ISO 14694 Industrial fans – Specifications for balance quality and vibration levels

– 5 – EN 50216-12:2011
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
drive
depending on the specification the motor used to drive the fan wheel can be either a three-phase a.c.
motor, an a.c. motor or a d.c. motor. The motor is mounted rigidly in the housing
3.2
connection box
the electrical connection between the external power supply (and control system if this exists) and the
internal connection is made in the terminal box. The terminal board is located in the connection box
3.3
housing
the housing is used for attaching the fan to the radiator or cooler; the housing also supports the motor.
In addition the protective grating and / or basket guard is / are attached to it
3.4
fan wheel
the fan wheel is mounted rigidly on the motor axle / rotor
3.5
protective grating / basket guard
the protective grating or basket guard is used to prevent accidental contact with the rotating parts.
Furthermore, the protective grating or basket guard also prevents large foreign bodies from coming
into contact with the parts
4 Requirements
4.1 Rated values
The following designations are used:
- f [Hz] = frequency;
- U [V] = rated voltage;
r
-
...