1、 IEC/TS 60815-2Edition 1.0 2008-10TECHNICAL SPECIFICATION Selection and dimensioning of high-voltage insulators intended for use in polluted conditions Part 2:Ceramic and glass insulators for a.c.systems IEC/TS 60815-2:2008(E)LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATI
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10、rvice Centre FAQ or contact us:Email:csciec.chTel.:+41 22 919 02 11 Fax:+41 22 919 03 00 LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.IEC/TS 60815-2Edition 1.0 2008-10TECHNICAL SPECIFICATION Selection and dimensioning of high-voltag
11、e insulators intended for use in polluted conditions Part 2:Ceramic and glass insulators for a.c.systems INTERNATIONAL ELECTROTECHNICAL COMMISSION SICS 29.080.10 PRICE CODEISBN 2-8318-1015-5 Registered trademark of the International Electrotechnical Commission LICENSED TO MECON Limited.-RANCHI/BANGA
12、LOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.2 TS 60815-2 IEC:2008(E)CONTENTS FOREWORD.4 1 Scope and object.6 2 Normative references.6 3 Terms,definitions and abbreviations.6 3.1 Terms and definitions.7 3.2 Abbreviations.7 4 Principles.7 5 Materials.8 6 Site severity det
13、ermination.8 7 Determination of the reference unified specific creepage distance(RUSCD).8 8 Choice of profile.9 8.1 General recommendations for porcelain and glass profiles.9 8.2 Profile suitability.12 9 Checking the profile parameters.12 9.1 Alternating sheds and shed overhang.15 9.2 Spacing versus
14、 shed overhang.15 9.3 Minimum distance between sheds.16 9.4 Creepage distance versus clearance.16 9.5 Shed angle.17 9.6 Creepage factor.17 10 Correction of the RUSCD.17 10.1 Correction for altitude Ka.18 10.2 Correction for insulator diameter Kad.18 11 Determination of the required minimum nominal c
15、reepage distance.19 12 Confirmation by testing.19 12.1 Determination of the long-duration withstand voltage.19 12.2 Selection of the standard pollution withstand test type.19 12.3 Artificial pollution test parameters.20 12.4 Criteria of confirmation.21 Bibliography.22 Figure 1 RUSCD as a function of
16、 SPS class.9 Figure 2 Typical“standard”profiles.10 Figure 3 Typical“open”profiles.11 Figure 4 Typical“anti-fog”profiles.11 Figure 5 Typical“alternating”profiles.11 Figure 6 Typical pin insulator shed profiles.12 Figure 7 Kad as a function of insulator diameter.18 LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.TS 60815-2 IEC:2008(E)3 Table 1 Principal advantages(+)and disadvantages(-)of main profile types.10 Table 2 Profile suitabi
