Disclosure to Promote the Right To Information

Transcription

1 इ टरन ट म नक Disclosure to Promote the Right To nformation Whereas the Parliament of ndia has set out to provide a practical regime of right to information for citizens to secure access to information under the control of public authorities, in order to promote transparency and accountability in the working of every public authority, and whereas the attached publication of the Bureau of ndian Standards is of particular interest to the public, particularly disadvantaged communities and those engaged in the pursuit of education and knowledge, the attached public safety standard is made available to promote the timely dissemination of this information in an accurate manner to the public. ज न1 क अ+धक र, ज 1 क अ+धक र Mazdoor Kisan Shakti Sangathan The Right to nformation, The Right to Live प0र 1 क छ ड न' 5 तरफ Jawaharlal Nehru Step Out From the Old to the New S (2000): Packaging of Winding Wires, Part 4: Methods of Test, Section 1: Delivery Spools Made from Thermoplastic Materials [ETD 33: Winding Wire]! न $ एक न' भ रत क +नम-ण Satyanarayan Gangaram Pitroda nvent a New ndia Using Knowledge! न एक ऐस खज न > ज कभ च0र य नहB ज सकत ह ह Bhartṛhari Nītiśatakam Knowledge is such a treasure which cannot be stolen

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4 S ( Part 4/Set 1) : 2000 EC l ( 1997 ) ndian Standard PACKAGNG OF WNDNG WRES PART 4 METHODS OF TEST Section 1 Delivery Spools Made from Thermoplastic Materials CS , BS 2000 BUREAU OF NDAN STANDARDS MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG NEW DELH July 2000 Price Group 4

5 Winding Wires Sectional Committee, ET 33 NATONAL FOREWORD This ndian Standard ( Part 4/ Set 1 ) which is identical with EC l (1997) Packaging of winding wires - Part-4-1 : Methods of test - Delivery spools made from thermoplastic materials issued by the nternational Electrotechnical Commission was adopted by the Bureau of ndian Standards on the recommendation of the Winding Wires Sectional Committee ( ET 33 ) and approval of the Electrotechnical Division Council. This standard is one of a series which deals with insulated wires used for winding wires in electrical equipment. Theseries comprises three groups describing: Methods of test (S 13778/EC 60851) Specifications for particular types of winding wires (S 13730EC 60317) Packaging (S /EC 60264) The text of EC standard has been approved as suitable for publication as ndian Standard without deviations. Certain conventions are, however, not identical to those used in ndian Standards. Attention is particularly drawn to the following: a) Wherever the words nternational Standards appear referring to this standard, they should be read as ndian Standard, and b) Comma (J has been used as a decimal marker while in ndian Standards, the current practice is to use a point (.) as the decimal marker. Only the English text of the nternational Standard has been retained while adopting it as ndian Standard. For the purpose of deciding whether a particular requirement of this standard is complied with, the final value, observed or calculated, expressing the result of a test, shall be rounded off in accordance with fs 2 : 1960 Rules for rounding off numerical values ( revised ). The number of significant places retained in the rounded off value should be the same as that of the specified value in this standard.

6 PACKAGNG ndian Standard OF WNDNG WRES PART 4 METHODS OF TEST S Part 4/Set 1 ) : 2000 EC l (1997) Section 1 Delivery Spools Made fromthermoplastic Materials 1 Scope This part of EC defines methods of test for delivery spools for winding wires made from thermoplastic materials in order to determine conformity with the established performance requirements for their properties. 2 General notes on methods of test Unless otherwise specified, all tests shall be carried out within a temperature range from 15 C to 35 C and a relative humidity from 45 % to 75 %. n case of dispute, the spools shall be preconditioned at a temperature of (23 f 2) C for 24 h. 3 Spool irregularities The surface and construction shall be visually inspected. 4 Spool marking The spool marking shall be visually inspected. 5 Mass The mass of the spool shall be measured by an apparatus capable of determining the mass with the accuracy required in the relevant specification. 6 Spool dimensions The spool dimensions shall be checked using standard measuring instruments. 7 True running deviation The true running deviation of the inside faces of the flanges and of the surface of the barrel shall be determined with a measuring device as shown in figure 1. 8 High temperature test The spool shall be conditioned for a period of 4 h in an oven with forced air circulation at a temperature specified in the relevant specification. The spool shall be allowed to cool to room temperature before the dimensional checks, as specified in &use 6, and the true running deviation checks in clause 7 are carried out. 1

7 S ( Part 4Sec 1) : 2000 EC l (1997) 9 mpact test on flanges 9.1 At normal -ambient conditions After conditioning the spool for a minimum of 24 h at a temperature of (20 f 5) C the spool shall be tested in the apparatus as shown in figure 2. For practical reasons the hammer shall be dropped on the flanges as indicated in either figure 3a (cylindrical barrelled spool) or figure 3b (taper barrelled spool) or figure 3c (cylindrical barrelled spool with conical flanges). The hammer shall be a solid cylinder with a minimum diameter of 40 mm. The surface that strikes the flange shall be flat and smooth. 9.2 At low temperature The spool shall be conditioned for a period of 24 h at a temperature specified in the relevant specification. The spool shall then be tested in the apparatus as shown in figure Deformation under load The spool shall be~subjected to a deformation test in the as received condition which shall be carried out at a temperature of (20 + 5) C, using a suitably equipped tensile machine. The spool flanges shall be clamped with the test jigs as shown in figure 4. The half disks in each jig shall be in contact with the surface of the two sides of each flange. The clearance between the disk and the barrel, when using figure 4a, shall be (1,5 + 0,5) mm. When using figure 4b, the clearance between the disk and the barrel shall be (0,5 + 0,5) mm. When using figure 4c for cylindrical or tapered barrelled spools with one conical flange, the clearance between the disk and the barrel for the flat flange shall be (1,5 * 0,5) mm and for the conical flange (0,5 +- OS) mm. The edges of the disks shall not be sharp. The deformation test shall be carried out with an initial elonga+ion speed from 10 mm/min to 15 mm/min up to the specified load. After the specified load is reached, the spool shall remain under load for 30 min. When using figure 4a, the distance between the half disks along the barrel of the spool shall then be measured. When using figure 4b or 4c, the spool shall be unloaded, and measured after 60 min. 11 Flexibility test on flanges 11.l Spools with flat flanges The test shall be carried out according to clause 10, except that the half are shown in figure 5. The inside diameter of the half disks shall be (94 f 0,2) % of the diameter of the flanges. 2

8 JS ( Part 4/Set 1) : 2000 EC (1997) After the specified load is reached the spool shall remain under load for 30 min. The distance between the flanges at the inside diameter of the half disks of the stressed spool shall then be measured. Sixty minutes after removing the load, the distance between the flanges shall be measured again at the same place as before Spools with conical flanges Every single conical flange shall be tested. The flange shall be placed between the two fixing partsas shown in figure 6. The size a of the fixing parts shall be 0,3 times the flange diameter, the size P of the fixing parts shall be twice the diameter of the flange. The flange will be pressed together with a speed of 50 mm/min. The forces necessary to get a reduction of the flange diameter of 4 %, 8 % and 14 % shall be measured.

9 S ( Part 4/Set 1 ) : 2000 EC l (1997) Figure 1 - Measuring device for true running deviations Tube with reference marks / Hammer A - i - Spool holding fixture Figure 2 - Flange impact test apparatus 4

10 S ( Part 4/Set 1) : 2000 EC l (1997) Figure 3a - Cylindrical barrelled spool Figure 3b -Taper barrelled spool Figure 3c - Cylindrical barrelled spool with conical flanges Figure 3 - Spool holding fixture (detail of figure 2) 5

11 S ( Part 4/Set 1 ) : 2000 EC l (1997) F Dvnamometer clamp Disk Spacer Half disks Mounting bolt Tensile rod Two half disks Figure 4a - Cylindrical barrelled spool F Dynamometer clamp Disk Half disks berrel Half disks Two half disks Disk Figure 4b - Cylindrical barrelled spool with conical flanges F Dynamometer clamp Disk Half disks Spool barrel Half disks Two half disks Disk Figure 4c - Cylindrical barrelled spool with one conical flange Figure 4 - Tensile testing jig for deformation test 6

12 S ( Part VSec 1) : 2000 EC l (1997) Dynamometer clamp Disk Spacer Half disks Mounting bolt Tensile rod Two half disks Figure 5 - Tensile testing jiq for flexibility test (flat flanges) F Section A-B,L---+-! L----d a=(0,3xd,) E lb Figure 6 - Crushing testing Jim for flexibility test (conical flanges)

13 Bureau of ndian Standards BS is a statutory institution established under the Bureau o~mian StandardsAct, 1986 to promote harmonious development of the activities of standardization, marking and quality certification of goods and attending to connected matters in the country. Copyright BS has the copyright of all its publications. No part of these publications may bereproduced in any form without the prior permission in writing of BS. This does not preclude the free use, in the course of implementing the standard, of necessary details, such as symbols and sizes, type or grade designations. Enquiries relating-to copyright be addressed to the Director (Publ ications), BlS. Review of ndian Standards Amendments are issued to standards as the need arises on the basis of comments. Standards are also reviewed periodically; a standard along with amendments is reaffirmed when such review indicates that no changes are needed; if the review indicates that changes are needed, it is taken upfor revision. Users of ndian Standards should ascertain that they are in possession of the latest amendments pr edition by referring to the latest issue of BS Handbook and Standards : Monthly Additions. This ndian Standard has been developed from DQC : No. ET 33 ( 3830 ). Amendments ssued Since Publication Amend No. Date of ssue Text Affected Headquarters: BUREAU OF NDAN STANDARDS Manak Bhavan, 9 Bahadur Shah Zafar Marg, New Delhi Telephones : , , Regional Offices: Central : Manak Bhavan, 9 Bahadur Shah Zafar Marg NEW DELH Eastern : l/l4 C.. T. Scheme V M, V.. P. Road, Maniktola CALCUTTA Northern : SC , Sector 34-A, CHANDGARH Southern : C.. T. Campus, V Cross Road, CHENNA W,estern : Manakalaya, E9 MDC, Marol, Andheri (East) MUMBA Telegrams. Manaksanstha ( Common to all offices ) Telephone , , i , , , /891, Branches : AHMADABAD. BANGALORE. BHOPAL. BHUBANESHWAR. COMBATORE. FARDABAD. GHAZABAD. GUWAHAT. HYDERABAD. JAPUR. KANPUR. LUCKNOW. NAGPUR. PATNA. PUNE. THRUVANANTHAPURAM. Printed at New ndia Printing Press, Khuja, rklta