BS-5604-1986 IEC-60587-1984.pdf
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1、BRITISH STANDARD BS 5604:1986 IEC 587:1984 Methods for Evaluating resistance to tracking and erosion of electrical insulating materials used under severe ambient conditions UDC 621.315.611.001.4:620.193.7:621.317.333.6 Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 14:55:11 GMT+00:00 2006, U
2、ncontrolled Copy, (c) BSI BS 5604:1986 This British Standard, having been prepared under the direction of the General Electrotechnical Engineering Standards Committee, was published under the authority of the Board of BSI and comes into effect on 31 July 1986 BSI 11-1999 First published June 1978 Fi
3、rst revision July 1986 The following BSI references relate to the work on this standard: Committee reference GEL/16 Draft for comment 85/28025 DC ISBN 0 580 15268 5 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the General Electrotechnical
4、 Engineering Standards Committee (GEL/-) to Technical Committee GEL/16, upon which the following bodies were represented: Adhesive Tape Manufacturers Association British Industrial Ceramic Manufacturers Association British Paper and Board Industry Federation (PIF) British Plastics Federation British
5、 Telecommunications plc Department of Trade and Industry (National Measurement Accreditation Service) Electrical and Electronic Insulation Association (BEAMA Ltd) Electrical Installation Equipment Manufacturers Association (BEAMA Ltd) Electricity Supply Industry in England and Wales Electronic Engin
6、eering Association ERA Technology Ltd Ministry of Defence Rotating Electrical Machines Association (BEAMA Ltd) Rubber and Plastics Research Association of Great Britain Telecommunication Engineering and Manufacturing Association (TEMA) Transmission and Distribution Association (BEAMA Ltd) Amendments
7、 issued since publication Amd. No.Date of issueComments Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 14:55:11 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5604:1986 BSI 11-1999i Contents Page Committees responsibleInside front cover National forewordii 1Scope and object1 2Definitions1 3Te
8、st specimens1 4Apparatus1 5Procedure2 6Test report3 Figure 1 Test specimen with holes for fixing electrodes3 Figure 2a Schematic circuit diagram4 Figure 2b Example: typical circuit for an overcurrent dela delay relay (F in Figure 2a)4 Figure 3a Assembly of the electrodes5 Figure 3b Test assembly, sc
9、hematic5 Figure 4 Top electrode, stainless steel 0.5 mm thick6 Figure 5 Bottom electrode, stainless steel 0.5 mm thick6 Figure 6 Filter-paper (eight sheets requested for each top electrode)6 Table I1 Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 14:55:11 GMT+00:00 2006, Uncontrolled Copy, (
10、c) BSI BS 5604:1986 ii BSI 11-1999 National foreword This revision of BS 5604, published under the direction of the General Electrotechnical Engineering Standards Committee, is identical with IEC 587:1984 “Test methods for evaluating resistance to tracking and erosion of electrical insulating materi
11、als used under severe ambient conditions”, published by the International Electrotechnical Commission (IEC). It supersedes BS 5604:1978 which is withdrawn. Terminology and conventions. The text of the International Standard has been approved as suitable for publication as a British Standard without
12、deviation. Some terminology and certain conventions are not identical with those used in British Standards; attention is drawn especially to the following. In Figure 4 the comma has been used as a decimal marker. In British Standards it is current practice to use a full point on the baseline as the
13、decimal marker. 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. Summary of pages This doc
14、ument comprises a front cover, an inside front cover, pages i and ii, pages 1 to 6 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheff
15、ieldun, na, Fri Dec 01 14:55:11 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5604:1986 BSI 11-19991 1 Scope and object This standard describes two test methods for the evaluation of electrical insulating materials for use under severe ambient conditions at power frequencies (48 Hz to 62 Hz) by meas
16、urement of the resistance to tracking and erosion, using a liquid contaminant and inclined plane specimens. Method 1: constant tracking voltage; Method 2: stepwise tracking voltage. NOTEThe test conditions are designed to accelerate the production of the effects, but do not reproduce all the conditi
17、ons encountered in service. With the test apparatus described in the following sub-clauses, the track starts at the lower electrode. Two criteria for determining the end point of the test are in use: Criterion A: The end point is reached when the value of the current in the high voltage circuit thro
18、ugh the specimen exceeds 60 mA. An overcurrent device then breaks this circuit. NOTEThis end point criterion permits the use of an automatic apparatus testing several specimens simultaneously. Criterion B: The end point is reached when the track reaches a mark on the specimen surface 25 mm from the
19、lower electrode (see Figure 1 and Figure 3b, pages 3 and 5). NOTE 1This end point criterion requires visual supervision and manual control. NOTE 2Criterion A is the preferred criterion. Criterion B may be used if required by the relevant material specification. 2 Definitions 2.1 track a partially co
20、nducting path created by localized deterioration on the surface of an insulating material 2.2 tracking the process that produces tracks as a result of the action of electric discharges on or close to a contaminated surface of an insulating material 2.3 erosion, electrical the wearing away of electri
21、cal insulating material by the action of electrical discharges 2.4 time-to-track the time required to produce tracks under the specified conditions of test 3 Test specimens 3.1 Dimensions Flat inclined specimens shall be at least 50 mm 120 mm. The preferred thickness shall be 6 mm. Other thicknesses
22、 may be used, but must be mentioned in the test report. The specimens shall be drilled as shown in Figure 1, page 3, to take the electrodes. 3.2 Preparation Unless otherwise specified, the surface of the specimens shall be lightly abraded. The abrasion should be done with a fine silicon carbide abra
23、sive paper under de-ionized or distilled water until the whole surface wets and appears uniformly matt when dry. If abrasion has not been used, the method of cleaning shall be mentioned in the test report. Specimens used for criterion B (see Clause 1) shall have reference marks on both edges 25 mm a
24、bove the lower electrode (see Figure 1 and Figure 3b, page 5). 4 Apparatus 4.1 Electrical apparatus A schematic circuit is given in Figure 2a, page 4. As the test will be carried out at high voltages, it is obviously necessary to use an earthed safety enclosure. The circuit comprises: 4.1.1 A 48 Hz
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