BRITISH STANDARD BS EN 50216 6 2002 Power transformer and reactor fittings — Part 6 Cooling equipment — Removable radiators for oil immersed transformers The European Standard EN 50216 6 2002 has the[.]
BRITISH STANDARD Licensed Copy: :FULLNAME, : DATE, Uncontrolled Copy, (c) BSI Power transformer and reactor fittings — Part 6: Cooling equipment — Removable radiators for oil-immersed transformers The European Standard EN 50216-6:2002 has the status of a British Standard ICS 29.180 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BS EN 50216-6:2002 BS EN 50216-6:2002 National foreword This British Standard is the official English language version of EN 50216-6:2002 Licensed Copy: :FULLNAME, : DATE, Uncontrolled Copy, (c) BSI The UK participation in its preparation was entrusted to Technical Committee PEL/14, Power transformers, which has the responsibility to: — aid enquirers to understand the text; — present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; — monitor related international and European developments and promulgate them in the UK A list of organizations represented on this committee can be obtained on request to its secretary Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue A British Standard does not purport to include all the necessary provisions of a contract Users of British Standards are responsible for their correct application Compliance with a British Standard does not of itself confer immunity from legal obligations This British Standard, having been prepared under the direction of the Electrotechnical Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 22 March 2002 Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages to 15 and a back cover The BSI copyright date displayed in this document indicates when the document was last issued Amendments issued since publication Amd No © BSI 22 March 2002 ISBN 580 39319 Date Comments EN 50216-6 EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM January 2002 ICS 29.180 Licensed Copy: :FULLNAME, : DATE, Uncontrolled Copy, (c) BSI English version Power transformer and reactor fittings Part 6: Cooling equipment Removable radiators for oil-immersed transformers Accessoires pour transformateurs de puissance et bobines d'inductance Partie 6: Appareillage de refroidissement Radiateurs détachables pour transformateurs immergés dans l'huile Zubehör für Transformatoren und Drosselspulen Teil 6: Kühlungseinrichtungen Abbaubare Radiatoren für Öltransformatoren This European Standard was approved by CENELEC on 2001-07-01 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 50216-6:2002 E EN 50216-6:2002 -2- Foreword This European Standard was prepared by the Technical Committee CENELEC TC 14, Power transformers Licensed Copy: :FULLNAME, : DATE, Uncontrolled Copy, (c) BSI The text of the draft was submitted to the formal vote and was approved by CENELEC as EN 50216-6 on 2001-07-01 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) 2002-08-01 - latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2004-08-01 EN 50216-6 is to be read in conjunction with EN 50216-1 -3- EN 50216-6:2002 Contents Licensed Copy: :FULLNAME, : DATE, Uncontrolled Copy, (c) BSI Page Scope Normative references Manufacturing prescription 3.1 Radiator types defined in this document 3.2 General characteristics 3.3 Material 3.4 Dimensions and tolerances 3.5 Lifting attachments and mechanical connections 3.6 Surface protection Tests 4.1 Routine tests 4.2 Type tests Preparation for transport and storage 4 4 5 EN 50216-6:2002 -4- Scope Licensed Copy: :FULLNAME, : DATE, Uncontrolled Copy, (c) BSI EN 50216-6 covers radiators, i.e the thermal exchangers for the oil cooling with natural ambient air circulation Such radiators are made with several elements with cooling channels connected in parallel This standard defines the overall dimensions and ensures the mechanical interchangeability achieving the same thermal performances Normative references Addition to EN 50216-1: ISO 4406 1999 Hydraulic fluid power - Fluids - Method for coding the level of contamination by solid particles Manufacturing prescription 3.1 Radiator types defined in this document The designations to identify the types of radiator are FA radiators with square flanges and elements of unequal length (see Figure 1) FG radiators with square flanges and elements of equal length (see Figure 2) FTR radiators with square flanges and elements of equal length and with several elements with reduced width (see Figure 3) FTTO tangential radiators with oval flanges and elements of equal length (see Figure 4) FR radiators with square flanges with lowered upper header (see Figure 5) FTT tangential radiators with square flanges and elements of equal length (see Figure 6) 3.2 General characteristics The main radiator components are - headers, - connection flanges, - elements The headers shall be made in such a way to guarantee a complete filling and a complete draining Oblique elements or reduced elements are acceptable The layout is given in Figures to The radiators shall be provided with an air vent device on the top header and a draining device on the bottom header 3.3 Material The radiator elements shall be made of stamped steel plates or steel pipes (round or ovaled) with a thickness of 1,2 mm, in conformity with ISO, EN or equivalent standards Other thicknesses may be applicable -5- 3.4 EN 50216-6:2002 Dimensions and tolerances To ensure interchangeability between radiators of different manufacturers, the tolerances given in the figures shall be maintained The radiators shall not deflect from horizontal by more than mm per meter without oil Licensed Copy: :FULLNAME, : DATE, Uncontrolled Copy, (c) BSI The radiators shall be vacuum resistant if required 3.5 Lifting attachments and mechanical connections 3.5.1 Lifting attachments The radiators shall have a lifting attachment This lifting attachment shall have at least one lifting lug consisting of a hole with a diameter not less than 30 mm 3.5.2 Mechanical connections A facility to make a mechanical connection between radiators shall be provided 3.6 Surface protection 3.6.1 Internal surfaces The internal surfaces shall be free of foreign bodies and transformer oil contaminants according to IEC 60296 They shall be washed with oil for transformers according to ISO 4406 The oil shall conform to IEC 60296 An appropriate velocity of the oil during the washing operation is required If the cooling liquid is different from transformer oil according to IEC 60296, the radiators shall be treated in agreement with the purchaser Internal painting shall be as agreed between the manufacturer and the purchaser 3.6.2 External surfaces The process of anti-rust treatment and painting shall be agreed between manufacturer and purchaser Due regard is to be paid to environmental conditions The environmental conditions shall be according to EN 60721-3-4 Tests 4.1 4.1.1 4.1.1.1 Routine tests Visual inspection of surfaces External surfaces When carrying out the visual inspection, there shall be no excessive flexibility and deformations Fillers of any nature are not acceptable EN 50216-6:2002 4.1.1.2 -6- Internal surfaces The inspection shall be carried out by visual means where possible and then in addition by flushing using a filter to detect the presence of any foreign bodies or contaminations If this inspection is not satisfactory, further flushing shall be carried out Licensed Copy: :FULLNAME, : DATE, Uncontrolled Copy, (c) BSI 4.1.2 Leakage test The leakage test shall be carried out according to one of the following two methods Other methods with other testing values may be carried out by agreement between manufacturer and purchaser 4.1.2.1 Test with oil The radiators are filled with transformer oil at a temperature of (60 ± 5) °C and are kept at a pressure of 200 kPa for h There shall be no oil leaks Compliance is checked by visual inspection 4.1.2.2 Test with compressed air The radiators are filled with air at a pressure of 200 kPa There shall be no air leaks, however small Compliance is checked by immersing the radiator in a tank filled with water 4.2 4.2.1 Type tests Inspection of the external paint The paint thickness shall be checked by means of a scratch thickness gauge in the accessible points and by means of a magnetic thickness gauge in the invisible points The thickness of the single coats shall comply with that specified when ordering Regarding the surface protection specified in 3.6, a checker-work test can be applied or another test defined by agreement between manufacturer and purchaser Preparation for transport and storage Radiators shall be clean and free of all foreign bodies and other contaminations Radiator flanges shall be covered to prevent the ingress of contamination during transport or storage and steps shall be taken to ensure that there is no deterioration caused by condensation All measures shall be taken to avoid mechanical damage to the elements -7- EN 50216-6:2002 Dimensions in mm Vent plug a1 Lifting lug Fixing plate 30 Licensed Copy: :FULLNAME, : DATE, Uncontrolled Copy, (c) BSI 18 55° 50 C L1 ± Thickness of an element: 30 max + max 50 - 1,5 Lower value is applicable Fixing plate 30 Drain plug a2 Lifting lug Without beveled elements 160 Ỉ R-with beveled elements on the right 170 45° DN80 20 Ỉ 330 380 L2 (250) L-with beveled elements on the left 170 330 380 Ỉ8 L2 (250) 150 150 520 +5 520 +5 520 +5 View x View x View x -10 -10 -10 NOTE Connection flange: it is possible to use flanges Ỉ 100 0,5 +180 45° 22 Ỉ 170 Figure - FA-type radiators with flange and elements having different lengths EN 50216-6:2002 -8- Dimensions in mm Vent plug Lifting lug a1 Licensed Copy: :FULLNAME, : DATE, Uncontrolled Copy, (c) BSI 18 Fixing plate 30 C I1 ± Thickness of an element: 30 max max 50 ± 1,5 Lower value is applicable Fixing plate 30 Drain plug a1 Lifting lug Without beveled elements 160 Ỉ R-with beveled elements on the right 170 45° DN80 20 330 Ỉ L2 (250) L-with beveled elements on the left 170 380 380 330 Ỉ8 L2 (250) 150 520 +5 -10 View x 150 520 +5 520 +5 View x View x -10 -10 NOTE Connection flange: it is possible to use flanges Ỉ 100 0,5 +180 45° 22 Ỉ 170 Figure - FG-type radiators with flange and elements having the same lengths -9- EN 50216-6:2002 Dimensions in mm a1 55 Lifting lug b2 18 + 0,6 Partial view F b1 b3 Air vent Fixing plate Licensed Copy: :FULLNAME, : DATE, Uncontrolled Copy, (c) BSI F 0,5 +160 45° 20 Ỉ Connection flange Step With several elements reduced on right side With complete elements Draining Stiffening a2 40 With several elements reduced on left side With several elements reduced on right and left sides 63,5 63,5 63,5 63,5 Ỉ 80 L±2 150 150 max 530 Distance between centers L +- a1 - a2 b1 b2 b3 max 530 max 530 max 530 600 to 800 = length from 100 to 100 > 800 = length from 50 to 50 90 to 200 = Step 10 in 10 According to number of elements (4 to 32) NOTE Connection flange: it is possible to use flanges Ỉ 100 0,5 +180 45° According to b1 22 Ỉ 170 Figure – FTR-type radiators EN 50216-6:2002 - 10 - Dimensions in mm b1 + 140 b1 b5 Lifting lug 40 Step 70 b4 Partial view F b2 Fixing plate Air vent 70 b6 b3 Air vent Licensed Copy: :FULLNAME, : DATE, Uncontrolled Copy, (c) BSI F 0,5 +160 45° 20 Ỉ Flange 100 Connection flange Draining Draining Stiffening Ỉ 18 + 110 - 0,5 140 With complete elements With several elements reduced on right side 100 With several elements reduced on left side 63,5 63,5 With several elements reduced on right and left sides 63,5 63,5 16 L ±2 max 353,5 max 263,5 max 617 Distance between centers L +- a1 b1 max 353,5 max 263,5 max 617 max 353,5 max 263,5 max 617 600 to 800 = length from 100 ± 10 to 100 ± 10 > 800 = length from 50 ± 10 to 50 ± 10 Minimum = Step 10 in 10 Maximum 360 = Minimum Step 40 b2 b3 According to number of elements b4 b5 b6 According to mounting on material Figure - FTTO-type radiators max 353,5 max 263,5 max 617 - 11 - EN 50216-6:2002 Table – Characteristics and dimensions of the radiators whose width is 520 mm Distance between centres I1 800 to 500 having different length from 100 to 100 Number of elements to 32 Length of tubes a1 and a2 60 to 200 having different length from 10 to 10 Licensed Copy: :FULLNAME, : DATE, Uncontrolled Copy, (c) BSI a Number off stiffenings one each side dimension I1 number (minimum) (dimension I2) b 800 - 500 600 - 500 600 - 500 (0 - 1) (1 - 2) (2 - 3) (I1/2) (I1/3) b (I1/4) a The number and position of stiffenings can be modified for possible applications of the electric fans b The minimum number of stiffenings on each side can be, as an alternative, the one indicated in brackets In this case, refer to the dimension (I2) indicated for the distances among the stiffenings EN 50216-6:2002 - 12 - Dimensions in mm Vent plug Lifting lug Licensed Copy: :FULLNAME, : DATE, Uncontrolled Copy, (c) BSI a1 P Fixing plate 30 Without beveled elements L2 (250) 160 45° DN 80 Ỉ 20 Ỉ I1 ± C 150 L2 (250) a2 +5 520 - 10 Fixing plate 30 Drain plug 150 View x Lifting lug max 50 ± 1,5 Lower value is applicable NOTE See Table for the dimensions that are not indicated in the figure, the number of elements and the number of stiffenings NOTE Connection flange: it is possible to use flanges Ỉ 100 +-0,5 180 45° 22 Ỉ 170 Figure - FR-type radiators with flange and upper connection depressed - 13 - EN 50216-6:2002 Dimensions in mm 70 b4 Partial view F Fixing plate b2 Air vent b1 + 140 b1 b5 Lifting lug 40 Step 70 b6 b3 Air vent Licensed Copy: :FULLNAME, : DATE, Uncontrolled Copy, (c) BSI F 0,5 +160 45° 20 Flange Ỉ 150 Connection flange Draining With several elements reduced on right side With complete elements a1 Draining Stiffening 150 Flange With several elements reduced on left side 63,5 63,5 18 + 0,6 With several elements reduced on right and left sides 63,5 63,5 L±2 max 353,5 max 263,5 max 617 Distance between centers L + -2 a1 b1 max 353,5 max 263,5 max 617 max 353,5 Minimum 90 = Step 10 in 10 Maximum 360 = Minimum Step 40 According to number of elements b4 b5 b6 According to mounting on material NOTE Connection flange: it possible to use flanges Ỉ 100 0,5 +180 45° 22 Ỉ 170 Figure - FTT-type radiators max 263,5 max 617 max 617 600 to 800 = length from 100 ± 10 to 100 ± 10 > 800 = length from 50 ± 10 to 50 ± 10 b2 b3 max 353,5 max 263,5 is EN 50216-6:2002 - 14 - Dimensions in mm Dimensions: Centre distance: No of elements: Dim a: Back-sheet: Ỉ R = Radiator without flanges 40 Ỉ8 200 Bracing iron from elements on Licensed Copy: :FULLNAME, : DATE, Uncontrolled Copy, (c) BSI F = Radiator with flanges Model l = 600 – 600 n = - 14 60 - 125 material thickness 1,5 200 a 18 Back-sheet material thickness: 1,5 mm DN80 150 / / / / / Figure - FG1A-type radiators (integral header positioned centrally) - 15 - EN 50216-6:2002 Dimensions in mm Dimensions: Centre distance: No elements: l l of600 600 Dim a: Back-sheet : Ỉ R = Radiator without flanges 131 40 200 Ỉ8 Bracing iron from elements on Licensed Copy: :FULLNAME, : DATE, Uncontrolled Copy, (c) BSI F = Radiator with flanges Model I = 600 to 600 n = - 14 60 - 125 material thickness 1,5 200 18 a M10 150 10 22 40 160 Back-sheet material thickness: 1,5 DN80 10 Execution right Execution left Figure - FG1A-type radiators (integral header offset horizontally 131 mm) BS EN 50216-6:2002 BSI — 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