1、 INTERNATIONAL STANDARD IEC 61892-4First edition 2007-06Mobile and fixed offshore units Electrical installations Part 4: Cables Reference number IEC 61892-4:2007(E) THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2007 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no par
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7、/custserv If you wish to give us your feedback on this publication or need further assistance, please visit the Customer Service Centre FAQ or contact us: Email: csciec.ch Tel.: +41 22 919 02 11 Fax: +41 22 919 03 00 INTERNATIONAL STANDARD IEC 61892-4First edition 2007-06Mobile and fixed offshore un
8、its Electrical installations Part 4: Cables X For price, see current catalogue PRICE CODE Commission Electrotechnique Internationale International Electrotechnical Commission 2 61892-4 IEC:2007(E) CONTENTS FOREWORD.4 INTRODUCTION.6 1 Scope.7 2 Normative references .7 3 Terms and definitions .8 4 Typ
9、es, installation and operating conditions of cables 10 4.1 Types of cables.10 4.2 Voltage rating10 4.2.1 Power frequency cables 10 4.2.2 Control and instrumentation cables11 4.3 Cross-sectional areas of conductors and current-carrying capacities.11 4.3.1 Cross-sectional areas of conductors11 4.3.2 C
10、urrent-carrying capacities13 4.3.3 Current-carrying capacities for continuous service.13 4.3.4 Correction factors for different ambient air temperatures .17 4.3.5 Correction factors for short time duty.18 4.3.6 Correction factors for cable grouping.21 4.4 Voltage drop22 4.5 Estimation of lighting lo
11、ads22 4.6 Parallel connection of cables.22 4.7 Separation of circuits.22 4.8 Short circuit capacity (withstand capability). 22 4.9 Conductor .22 4.10 Insulation material.23 4.11 Screen, core screen or shield23 4.12 Sheathing material 23 4.13 Metallic braid armour.23 4.14 Fire performance.23 4.15 Ben
12、ding radius 24 Annex A (informative) Tabulated current-carrying capacities Defined installations 26 Annex B (Informative) Fire stops40 Annex C (Informative) Jet fire test for hydrocarbon (HCF) fire resistant cables 41 Annex D (Informative) Drilling fluid test procedure and requirements .42 Bibliogra
13、phy44 Table 1 Choice of cables for a.c. systems11 Table 2 Sizes of earth continuity conductors and equipment earthing connections13 Table 3 Coefficient related to maximum permissible temperature of the conductor.14 Table 4 Current-carrying capacities in continuous service at maximum rated conductor
14、temperature of 70 C (ambient air temperature 45 C) 15 61892-4 IEC:2007(E) 3 Table 5 Current-carrying capacities in continuous service at maximum rated conductor temperature of 90 C (ambient air temperature 45 C) 16 Table 6 Current-carrying capacities in continuous service at maximum rated conductor
15、temperature of 95 C (ambient air temperature 45 C) 17 Table 7 Correction factor for various ambient air temperatures (reference ambient temperature of 45 C) .18 Table 8 Correction factor for various ambient air temperatures (reference ambient temperature of 30 C) .18 Table 9 Bending radii for cables
16、 rated up to 1,8/3 kV .25 Table 10 Bending radii for cables rated at 3,6/6,0(7,2) kV and above.25 Table A.1 Current-carrying capacities in amperes Copper conductor temperature 60 C and reference ambient air temperature 45 C29 Table A.2 Current-carrying capacities in amperes Copper conductor temperat
17、ure 70 C and reference ambient air temperature 45 C30 Table A.3 Current-carrying capacities in amperes Copper conductor temperature 85 C and reference ambient air temperature 45 C31 Table A.4 Current-carrying capacities in amperes Copper conductor temperature 60 C and reference ambient air temperatu
18、re 30 C32 Table A.5 Current-carrying capacities in amperes Copper conductors temperature 70 C and reference ambient temperature 30 C.33 Table A.6 Current-carrying capacities in amperes Copper conductors temperature 85 C and reference ambient temperature 30 C.34 Table A.7 Current-carrying capacities
19、in amperes Copper conductors temperature 90 C and reference ambient temperature 45 C.35 Table A.8 Current-carrying capacities in amperes Copper conductors temperature 95 C and reference ambient temperature 45 C.36 Table A.9 Correction factors for groups of more than one circuit or of more than one m
20、ulti-core cable to be used with current-carrying capacities of Tables A.1 to A.8.37 Table A.10 Correction factors for group of more than one multi-core cable to be applied to reference ratings for multi-core cables in free air Method of installation E in Tables A.1 to A.8 38 Table A.11 Correction fa
21、ctors for groups of more than one circuit of single-core cables to be applied to reference rating for one circuit of single-core cables in free air Method of installation F in Tables A.1 to A.8 .39 Figure 1 Time constant of cables .19 Figure 2 Correction factors for half-hour and one-hour service.20
22、 Figure 3 Correction factor for intermittent service.21 Figure C.1 International recognized HC fire curve41 4 61892-4 IEC:2007(E) INTERNATIONAL ELECTROTECHNICAL COMMISSION _ MOBILE AND FIXED OFFSHORE UNITS ELECTRICAL INSTALLATIONS Part 4: Cables FOREWORD 1) The International Electrotechnical Commiss
23、ion (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in
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31、er damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication.
32、Use of the referenced publications is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such paten
33、t rights. International Standard IEC 61892-4 has been prepared by IEC technical committee 18: Electrical installations of ships and of mobile and fixed offshore units, in cooperation with SC 18A: Cables and cable installations. The text of this standard is based on the following documents: FDIS Repo
34、rt on voting 18/1052/FDIS 18/1058/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. 61892-4 IEC:2007(E) 5 A list of all parts of
35、the IEC 61892 series, published under the general title Mobile and fixed offshore units Electrical installations, can be found on the IEC website. The committee has decided that the contents of this publication will remain unchanged until the maintenance result date indicated on the IEC web site und
36、er “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be reconfirmed; withdrawn; replaced by a revised edition, or amended. A bilingual version of this publication may be issued at a later date. 6 61892-4 IEC:2007(E) INTRODUCTION IEC 61892 for
37、ms a series of International Standards intended to enable safety in the design, selection, installation, maintenance and use of electrical equipment for the generation, storage, distribution and utilisation of electrical energy for all purposes in offshore units which are being used for the purpose
38、of exploration or production of petroleum resources. This part of IEC 61892 also incorporates and coordinates, as far as possible, existing rules and forms a code of interpretation, where applicable, of the requirements of the International Maritime Organisation. It also constitutes a guide for futu
39、re regulations which may be prepared and a statement of practice for offshore unit owners, constructors and appropriate organisations. This standard is based on equipment and practices which are in current use but it is not intended in any way to impede development of new or improved techniques. The
40、 ultimate aim has been to produce a set of International standards exclusively for the offshore petroleum industry. 61892-4 IEC:2007(E) 7 MOBILE AND FIXED OFFSHORE UNITS ELECTRICAL INSTALLATIONS Part 4: Cables 1 Scope This part of IEC 61892 specifies requirements for the choice and installation of e
41、lectrical cables intended for fixed electrical systems in mobile and fixed offshore units, including pumping or “pigging” stations, compressor stations and exposed location single buoy moorings, used in the offshore petroleum industry for drilling, production, processing and for storage purposes. Th
42、e reference to fixed electrical systems includes those that are subjected to vibration due to the movement of the unit, e.g. cables installed on a drag chain, and not those that are intended for repeated flexing. Cables suitable for repeated flexing use are detailed in other IEC specifications, e.g.
43、 IEC 60227 and IEC 60245, and their uses on board offshore units are restricted to those situations which do not directly involve exposure to a marine environment, e.g. portable tools, domestic appliances, etc. The following types and applications of cables are not included: optical fibre cables; su
44、b-sea and umbilical cables; cables supplying downhole pumps; data, telecommunication and radio frequency cables. 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 referen
45、ces, the latest edition of the referenced document (including any amendments) applies. IEC 60038:1983, IEC standard voltages 1)Amendment 1 (1994) Amendment 2 (1997) IEC 60092-350:2001, Electrical installations in ships Part 350: Shipboard power cables - General construction and test requirements IEC
46、 60092-351, Electrical installations in ships Part 351: Insulating materials for shipboard and offshore units, power, control, instrumentation, telecommunication and data cables IEC 60092-353, Electrical installations in ships Part 353: Single and multicore non-radial field power cables with extrude
47、d solid insulation for rated voltages 1 kV and 3 kV IEC 60092-354, Electrical installations in ships Part 354: Single and three-core power cables with extruded solid insulation for rated voltages 6 kV (U m =7,2 kV); up to 30 kV (U m =36 kV) _ 1) There exists a consolidated edition 6.2 (2002) includi
48、ng IEC 60038:1983 and its Amendments 1 and 2. 8 61892-4 IEC:2007(E) IEC 60092-359, Electrical installations in ships Part 359: Sheathing materials for shipboard power and telecommunication cables IEC 60092-376, Electrical installations in ships Part 376: Cables for control and instrumentation circui
49、ts 150/250 V (300 V) IEC 60228:2004, Conductors of insulated cables IEC 60331-21:1999, Tests for electric cables under fire conditions Circuit integrity Part 21: Procedures and requirements Cables of rated voltage up to and including 0,6/1,0 kV IEC 60331-31:2002, Tests for electric cables under fire conditions Circu
