BS-7922-2004.pdf
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1、BRITISH STANDARD BS 7922:2004 Electric cables Fluid-filled, paper- and PPL-insulated, metal-sheathed cables and accessories for alternating voltages up to and including 400 kV (Um= 420 kV) Requirements and test methods (Implementation of HD 633) ICS 29.060.20 ? Licensed Copy: London South Bank Unive
2、rsity, London South Bank University, Fri Dec 08 12:06:44 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7922:2004 This British Standard, was published under the authority of the Standards Policy and Strategy Committee on 4 August 2004 BSI 4 August 2004 The following BSI references relate to the work
3、on this British Standard: Committee reference GEL/20/16 Draft for comment 95/215974 DC ISBN 0 580 38553 1 Committees responsible for this British Standard The preparation of this British Standard was entrusted by Technical Committee GEL/20, Electric cables, to Subcommittees GEL/20/16, Medium/high vo
4、ltage cables, upon which the following bodies were represented: British Approvals Service for Cable British Cables Association British Plastics Federation Energy Networks Associations ERA Technology Ltd. Co-opted members Amendments issued since publication Amd. No.DateComments Licensed Copy: London
5、South Bank University, London South Bank University, Fri Dec 08 12:06:44 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7922:2004 BSI 4 August 2004 i Contents Page Committees responsibleInside front cover Forewordii 1Scope1 2Normative references1 3Terms and definitions2 4Voltage designation2 5Charact
6、eristics of cables and accessories3 6Test categories, frequency and conditions3 7Routine tests on cables5 8Sample tests on cables7 9Routine tests on accessories9 10Sample tests on accessories10 11Type tests on cables and accessories11 12Non-electrical type tests on cables17 13Non-electrical type tes
7、ts on accessories20 14Tests and requirements for direct reading pressure gauges22 15Tests after installation28 16Tests on ancillary equipment32 Annex A (informative) Methods of heating cable samples40 Annex B (informative) Pressure drop40 Bibliography41 Figure 1 Diagram showing internal electrical c
8、onnections25 Table 1 Number of samples for sample tests4 Table 2 Tan measurement requirements for paper insulated cables6 Table 3 Tan measurement requirements for PPL insulated cables6 Table 4 Standard values of system voltages and test voltages recommended for cables to be used in 3-phase systems7
9、Table 5 Test cylinder diameters for bending test8 Table 6 Internal test pressure9 Table 7 Pressure/volume characteristics10 Table 8 Waveshape15 Table 9 Voltage levels15 Table 10 Lightning impulse test voltage levels17 Table 11 Impulse voltage test levels21 Table 12 Salt fog test voltage levels21 Tab
10、le 13 Classification of gauges22 Table 14 Climatic chamber temperatures for temperature limit tests26 Table 15 High voltage test levels29 Table 16 SVL test parameters29 Table 17 Maximum contact resistance values30 Table 18 Construction of single core bonding leads33 Table 19 Construction of concentr
11、ic bonding leads33 Table 20 Test voltages for bonding leads35 Table 21 Conductor resistance35 Table 22 Short circuit requirements37 Table 23 Impulse voltage withstand levels39 Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 12:06:44 GMT+00:00 2006, Uncontrolled
12、Copy, (c) BSI BS 7922:2004 ii BSI 4 August 2004 Foreword This British Standard has been prepared by Subcommittee GEL/20/16. It implements the nationally applicable parts of Harmonization Document HD 633 published by the European Committee for Electrotechnical Standardization (CENELEC), in accordance
13、 with the decision of the CENELEC Technical Board. BS 7922 applies to fluid-filled, paper- and PPL-insulated, metal-sheathed cables and accessories for alternating voltages up to and including 400 kV (Um= 420 kV). It has been assumed in the preparation of this British Standard that the execution of
14、its provisions will be entrusted to appropriately qualified and experienced people, for whose use it has been produced. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does
15、not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i to ii, pages 1 to 41 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Licensed Copy: London S
16、outh Bank University, London South Bank University, Fri Dec 08 12:06:44 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7922:2004 BSI 4 August 2004 1 1 Scope This British Standard specifies tests and requirements for radial field, fluid-filled, paper or polypropylene paper laminate (PPL) insulated met
17、al-sheathed cables and their accessories, which operate with a minimum static pressure of between 20 kPa (0.2 bar) and 300 kPa (3.0 bar) inclusive, a maximum static pressure of not more than 800 kPa (8.0 bar) and a minimum transient pressure of not less than 20 kPa (0.2 bar)1). NOTEThe cables in thi
18、s British Standard are specifically excluded from the scope of the Pressure Equipment Directive. It also specifies tests for cables and accessories with maximum static pressures exceeding 800 kPa (8.0 bar). This British Standard is applicable to cables and accessories intended for use in systems wit
19、h nominal voltages not exceeding 400 kV between phases. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (inclu
20、ding any amendments) applies. BS 228:1994, Specification for short-pitch transmission precision roller chains and chain wheels. BS 4727-2:Group 08, Glossary of electrotechnical, power, telecommunication, electronics, lighting and colour terms Part 2: Terms particular to power engineering Group 08: E
21、lectric cables. BS 6346, Specification for 600/1 000 V and 1 900/3 300 V armoured electric cables having PVC insulation. BS 6500:2000, Electric cables Flexible cords rated up to 300/500 V, for use with appliances and equipment intended for domestic, office and similar environments. BS 7912, Power ca
22、bles with XLPE insulation and metallic sheath, and their accessories, for rated voltages from 66 kV (Um = 72.5 kV) to 132 kV (Um = 145kV) Requirements and test methods. BS EN 50062, Specification for ceramic pressurized hollow insulators for high-voltage switchgear and controlgear. BS EN 60068-2-1,
23、Environmental testing Part 2: Test methods Section 2-1: Tests A Cold. BS EN 60068-2-2, Environmental testing Part 2: Test methods Section 2-2: Tests B Dry heat. IEC 60060-1, High-voltage test techniques Part 1: General definitions and test requirements.2) IEC 60060-2, High-voltage test techniques Pa
24、rt 2: Measuring systems. IEC 60228:1978, Conductors of insulated cables.3) IEC 60229:1982, Tests on cable oversheaths which have a special protective function and are applied by extrusion. IEC 60230, Impulse tests on cables and their accessories.4) IEC 60507:1991, Artificial pollution tests in high-
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