1、BRITISH STANDARD Power transformer and react or fittings Part 6: Cooling equipment - Removable radiators for oil-immersed transformers The European Standard EN 50216-6:2002 has the status ofa British Standard ICs 29.180 BS EN 502 16-612002 Wk present to the responsible European committee any enquiri
2、es 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. Cr oss-r e fer enc e s Th
3、e 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
4、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. Summary of pages This document comprises a
5、front cover, an inside front cover, the EN title page, pages 2 to 15 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. O BSI 22 March 2002 ISBN O 580 39319 4 EUROPEAN STANDARD EN 50216-6 NORME EUROPENNE EUROPISCHE NORM Januarv 2002 ICs 2
6、9.180 English version Power transformer and reactor fittings Part 6: Cooling equipment - Remova b I e rad i a tors for oi I- i m me rsed transform ers Accessoires pour transformateurs de puissance et bobines dinductance Partie 6: Appareillage de refroidissement - Radiateurs dtachables Abbaubare Radi
7、atoren pour transformateurs immergs dans lhuile Zubehr fr Transformatoren und Drosselspulen Teil 6: Khlungseinrichtungen - f r i tra nsfo rm a tore n This European Standard was approved by CENELEC on 2001-07-01. CENELEC members are bound to comply with the CENKENELEC Internal Regulations which stipu
8、late 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 Standar
9、d 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
10、 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 Comit
11、 Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels O 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 5021 6
12、-6:2002 -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 50216-6 on 2001-07-01. The following dates were fixed: - latest date by which the EN has to
13、be implemented at national level by publication of an identical national standard or by endorsement - latest date by which the national standards conflicting with the EN have to be withdrawn (dop) 2002-08-01 (dow) 2004-08-01 EN 50216-6 is to be read in conjunction with EN 50216-1. -3- EN 5021 6-6:20
14、02 Contents Page 1 Scope 4 2 Normative references . 4 3 Manufacturing prescription . 4 3.1 Radiator types defined in this document 4 3.2 General characteristics 4 3.3 Material . 4 3.4 Dimensions and tolerances . 5 3.5 Lifting attachments and mechanical connections . 5 4 Tests 5 4.1 Routine tests . 5
15、 4.2 Type tests 6 Preparation for transport and storage 6 3.6 Surface protection . 5 5 EN 5021 6-6:2002 -4- 1 Scope EN 50216-6 covers radiators, .e. the thermal exchangers for the oil cooling with natural ambient air circulation. Such radiators are made with several elements with cooling channels co
16、nnected in parallel. This standard defines the overall dimensions and ensures the mechanical interchangeability achieving the same thermal performances. 2 Normative references Addition to EN 50216-1: IS0 4406 1999 Hydraulic fluid power - Fluids - Method for coding the level of contamination by solid
17、 particles 3 Manufacturing prescription 3.1 Radiator types defined in this document The designations to identify the types of radiator are FA FG FTR FTTO FR FTT radiators with square flanges and elements of unequal length (see Figure 1) radiators with square flanges and elements of equal length (see
18、 Figure 2) radiators with square flanges and elements of equal length and with several elements with reduced width (see Figure 3) tangential radiators with oval flanges and elements of equal length (see Figure 4) radiators with square flanges with lowered upper header (see Figure 5) tangential radia
19、tors 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
20、elements are acceptable. The layout is given in Figures 1 to 6. 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 thick
21、ness of 1,2 mm, in conformity with ISO, EN or equivalent standards. Other thicknesses may be applicable. -5- EN 5021 6-6:2002 3.4 Dimensions and tolerances To ensure interchangeability between radiators of different manufacturers, the tolerances given in the figures shall be maintained. The radiator
22、s shall not deflect from horizontal by more than 2 mm per meter without oil. 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 on
23、e 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
24、 contaminants according to IEC 60296. They shall be washed with oil for transformers according to IS0 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,
25、 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 env
26、ironmental conditions. The environmental conditions shall be according to EN 60721 -3-4. 4 Tests 4.1 Routine tests 4.1 .I 4. I. I. 1 Visual inspection of surfaces External surfaces When carrying out the visual inspection, there shall be no excessive flexibility and deformations. Fillers of any natur
27、e are not acceptable. EN 5021 6-6:2002 -6- 4. I. 1.2 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 fl
28、ushing shall be carried out. 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 transfo
29、rmer oil at a temperature of (60 f 5) “C and are kept at a pressure of 200 kPa for 3 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. Com
30、pliance is checked by immersing the radiator in a tank filled with water. 4.2 Type tests 4.2.1 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
31、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. 5 Radiators shall be clean and free of all foreign bodies and o
32、ther contaminations. Preparation for transport and storage 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 d
33、amage to the elements. -7- EN 5021 6-6:2002 Dimensions in mm Vent plug al / Liftina lua Thickness of an Lower value is applicable -l ir Lifting lug te Without beveled elements R-wit1 250) I beveled elements on the right L-with beveled elements on the left View x View x NOTE Connection flange: it is
34、possible to use flanges 0 100. .-.-.-.-. t-520 +5 -1 o View x Figure 1 - FA-type radiators with flange and elements having different lengths EN 5021 6-6:2002 -8- Dimensions in mm Vent plug max. 50 f 1,5 Lower value is applicable R-with beveled elements Without beveled elements f L2 h20 +5 -1 o View
35、x on the right -I u View x NOTE Connection flange: it is possible to use flanges 0 100. 22 min 170 L-with beveled elements on the left 38 -0 L520 +5 1 -1 o View x Figure 2 - FG-type radiators with flange and elements having the same lengths -9- Distance between centers L+2 al -a2 bl EN 5021 6-6:2002
36、 600 to 800 = length from 1 O0 to 1 O0 800 = length from 50 to 50 90 to 200 = Step 10 in 10 According to number of elements (4 to 32) Partial view Fixing plate B Connection flange With complete elements I 080 max ,530 4 2 Dimensions in mm With several With several With several elements reduced eleme
37、nts reduced elements reduced on right side on left side on right and left sides =min. 63,5 _I I= min. 633 min. 63,5 3 i yin. 63,5 I. ma:. 530, I max. 530 - I b2. b3 I According to bl I I max. 530 - NOTE Connection flange: it is possible to use flanges 0 100. Figure 3 - FTR-type radiators EN 5021 6-6
38、:2002 al bl b2. b3 - 10 - Minimum 9 = Step 10 in 10 Maximum 2 360 = Minimum Step 40 According to number of elements Dimensions in mm b4 . b5. b6 Partial view According to mounting on material Fixing plate F Connection flange With complete elements With several elements reduced on right side With sev
39、eral With several elements reduced elements reduced on left side on right and left sides I Distance between centers LT2 600 to 800 = length from 1 O0 I 1 O to 1 O0 k 1 O I 800 =lenath from 50k 10 to 50k 10 min. 63,5-1 1- min. 63,5 - I- Figure 4 - FTO-type radiators -11 - Number a off stiffenings one
40、 each side EN 5021 6-6:2002 dimension II 800 - 1 500 1 600 - 2 500 2 600 - 3 500 number (minimum) 2(0-1) 3 (1 -2) 4 (2 - 3) Table 1 - Characteristics and dimensions of the radiators whose width is 520 mm Distance between centres II I 800 to 3 500 having different length from 100 to 100 Number of ele
41、ments I 4 to 32 Length of tubes al and a2 I 60 to 200 having different length from 1 O to 1 O I (dimension 12) 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
42、indicated in brackets. In this case, refer to the dimension (12) indicated for the distances among the stiffenings. EN 5021 6-6:2002 - 12 - Dimensions in mm Vent plug Without beveled elements View x NOTE See Table 1 for the dimensions that are not indicated in the figure, the number of elements and
43、the number of stiffenings. NOTE Connection flange: it is possible to use flanges 0 100 Figure 5 - FR-type radiators with flange and upper connection depressed - 13 - Distance between centers L +2 al bl b2. b3 b4. b5. b6 600 to 800 = length from 1 O0 I 1 O to 1 O0 I 1 O Minimum 90 = Step 1 O in 1 O M
44、aximum 2 360 = Minimum Step 40 According to number of elements According to mounting on material 800 =length from 50 I loto 50 I10 EN 5021 6-6:2002 possible to use flanges 0 100. Dimensions in mm Partial view 6 Connection flange F With several With complete elements reduced elements on right side mi
45、n. 63,5 - With several With several elements reduced elements reduced on left side on right and left sides =I !yin. 633 min. 63,5 min. 63,5 Figure 6 - FlT-type radiators EN 5021 6-6:2002 - 14- Dimensions in mm “4 Dimensions: Centre distance: No of elements: Back-s heet: material thickness 13 Model I
46、 = 600 - 1 600 n = 2 - 14 Dim. a: 60 - 125 R = Radiator without flanges Back-sheet material thickness: 15 mm L 1 150 I I Ik d Figure 7 - FG1 A-type radiators (integral header positioned centrally) - 15- EN 5021 6-6:2002 Dimensions in mm Dimensions: Centre distance: Nb oGt&m&fEk Back-sheet : material
47、 thickness 13 Model I = 600 to 1 600 n = 2 - 14 Dim. a: 60 - 125 F = Radiat R = Radiator without flanges 131 _I Back-sheet material thickness: 13 I DN80 - - m Execution right Execution left Figure 8 - FGIA-type radiators (integral header offset horizontally 131 mm) BS EN 502 16-612002 BSI 389 Chiswi
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