1、PAS 74:2008Internet safety Access control systems for the protection of children online SpecificationICS 35.040; 35.080NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWPUBLICLY AVAILABLE SPECIFICATIONControl and instrumentation cablesPart 1: Specification for polyethylene insula
2、ted cablesY IFICATIONPAS 5308-1:2009Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 18/11/2009 07:48, Uncontrolled Copy, (c) BSIPAS 5308-1:2009Publishing and copyright informationThe BSI copyright notice displayed in this document indicates when the document was last issued. BSI 2009 ISBN 978
3、 0 580 67111 1ICS 29.060.20No copying without BSI permission except as permitted by copyright lawPublication historyFirst published July 2009Amendments issued since publicationDate Text affected Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 18/11/2009 07:48, Uncontrolled Copy, (c) BSI BSI 2
4、009 iPAS 5308-1:2009ContentsForeword iiiIntroduction 11 Scope 12 Normative references 23 Terms and definitions 24 Conductor 35 Insulation 36 Laying up 37 Outer protection 68 Cable marking 79 Electrical testing 810 Finished cable testing 10AnnexesAnnex A (informative) Handling and usage at various te
5、mperatures 11Annex B (informative) Guide to use 12Annex C (normative) Pair identification 16Annex D (normative) Constructional dimensions 17Annex E (normative) Voltage test 27Bibliography 28List of tablesTable 1 Details of conductors and insulation thickness 3Table 2 Details of conductors and enhanc
6、ed insulation thickness 3Table 3 Maximum mutual capacitance values 9Table 4 L/R ratios for adjacent cores 9Table B.1 Minimum installation radius of bend 12Table B.2 Test voltages after installation 13Table C.1 Identification of cable pairs other than two-pair cables without individual pair screens (
7、quads) 16Table D.1 Dimensions of 0.5 mm2class 1 conductor multipair PE insulated cables without individual pair screens 17Table D.2 Dimensions of 0.5 mm2class 1 conductor multipair PE insulated cables with individual pair screens 18Table D.3 Dimensions of 1.0 mm2class 1 conductor multipair PE insula
8、ted cables without individual pair screens 19Table D.4 Dimensions of 1.0 mm2class 1 conductor multipair PE insulated cables with individual pair screens 20Table D.5 Dimensions of 0.5 mm2class 5 conductor multipair PE insulated cables without individual pair screens 21Table D.6 Dimensions of 0.5 mm2c
9、lass 5 conductor multipair PE insulated cables with individual pair screens 22Table D.7 Dimensions of 1.5 mm2class 2 conductor multipair PE insulated cables without individual pair screens 23Table D.8 Dimensions of 1.5 mm2class 2 conductor multipair PE insulated cables with individual pair screens 2
10、4Table D.9 Dimensions of 2.5 mm2class 2 conductor multipair PE insulated cables without individual pair screens 25Table D.10 Dimensions of 2.5 mm2class 2 conductor multipair PE insulated cables with individual pair screens 26Summary of pagesThis document comprises a front cover, an inside front cove
11、r, pages i to iv, pages 1 to 28, an inside back cover and a back cover.Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 18/11/2009 07:48, Uncontrolled Copy, (c) BSIPAS 5308-1:2009ii BSI 2009This page deliberately left blankLicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 18/11/2009 07:48
12、, Uncontrolled Copy, (c) BSI BSI 2009 iiiPAS 5308-1:2009ForewordPublishing informationThis Publicly Available Specification (PAS) was sponsored by the British Cables Association (BCA) with the support of the Electrical Contractors Association (ECA). It was developed by BSI and came into effect on 3
13、1 July 2009.Acknowledgement is given to the following organizations that were involved in the development of this specification as members of the Steering Group. British Cables Association British Approvals Service for Cables Electrical Contractors Association ERA Technology Limited Ministry of Defe
14、nce UK Defence StandardizationAcknowledgement is also given to the members of a wider Review Panel who were consulted in the development of this specification.BSI retains ownership and copyright of this PAS. BSI reserves the right to withdraw or amend this PAS on receipt of authoritative advice that
15、 it is appropriate to do so. This PAS will be reviewed at intervals not exceeding two years, and any amendments arising from the review will be published as an amended PAS and publicized in Update Standards.This PAS is not to be regarded as a British Standard.The PAS process enables a specification
16、to be rapidly developed in order to fulfil an immediate need in industry.Relationship with other publicationsThis PAS is issued in two parts: Part 1: Specification for polyethylene insulated cables Part 2: Specification for PVC insulated cablesThis part is based on BS 5308-1:1986, which was supersed
17、ed by BS EN 50288-7:2005.It takes into account the following recently published harmonized European standards which supersede key British Standards: BS EN 60228:2005, a specification for conductors of insulated cables, which superseded BS 6360:1991; and BS EN 62230:2007, a sparktest method, which ex
18、ists alongside BS 5099:2004. WARNING. This PAS calls for the use of substances and/or procedures that can be injurious to health if adequate precautions are not taken. It refers only to technical suitability and does not absolve the user from legal obligations relating to health and safety at any st
19、age.Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 18/11/2009 07:48, Uncontrolled Copy, (c) BSIPAS 5308-1:2009iv BSI 2009Use of this documentIt has been assumed in the preparation of this PAS that the execution of its provisions will be entrusted to appropriately qualified and experienced pe
20、ople, for whose use it has been produced.Presentational conventionsThe provisions of this standard are presented in roman (i.e. upright) type. Its requirements are expressed in sentences in which the principal auxiliary verb is “shall”.Commentary, explanation and general informative material is pres
21、ented in smaller italic type, and does not constitute a normative element. The word “should” is used to express recommendations, the word “may” is used to express permissibility and the word “can” is used to express possibility, e.g. a consequence of an action or an event.Contractual and legal consi
22、derationsThis publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a PAS cannot confer immunity from legal obligations.Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 18/11/2009 07:48, Uncontrolle
23、d Copy, (c) BSI BSI 2009 1PAS 5308-1:2009IntroductionPAS 5308 has been developed to incorporate additional aspects not covered in the European standard for control and instrumentation cables, BS EN 50288-7. In particular PAS 5308:a) covers circumstances where higher voltages are encountered and as s
24、uch specifies cables that are suitable for more demanding applications, for example, in petrochemical plants; andb) gives detailed constructional tables, showing actual dimensions for the full range of cable types as previously specified in BS 5308-1:1986 and as such maintains the availability of su
25、ch data, which is required by stakeholders as a tool for design, manufacture, testing and selection.The contribution of cables to fire hazard can pose a significant risk. The fire performance of cables is not covered. However, attention is drawn to the fact that safety systems or national and local
26、regulations might specify requirements for either resistance to fire performance (e.g. circuit integrity under fire) and/or reaction to fire performance (e.g. low emission of smoke and corrosive and acidic gases and propagation of fire).1 ScopeThis part of PAS 5308 specifies requirements for and dim
27、ensions of polyethylene (PE) insulated control and instrumentation cables in multipair construction, with or without screens, and optionally incorporating a lead sheath and single wire armour.It categorizes cables into:a) type 1: PE insulated and PVC sheathed;NOTE These cables are not recommended fo
28、r underground burial.b) type 2: PE insulated, PE bedded, single wire armoured and PVC oversheathed; andc) type 3: PE insulated, PVC bedded, lead alloy sheathed, single wire armoured and PVC oversheathed.The cables are suitable for operation at voltages up to and including 300 V r.m.s. core to earth
29、and 500 V r.m.s. core to core (i.e. 300/500 V). These cables are not primarily intended for direct connection to a low impedance source, such as the public electricity supply.NOTE 1 Guidance on the safe handling, especially at low temperatures, for PVC sheathed cables is given in Annex A.NOTE 2 Guid
30、ance on use is given in Annex B. It includes guidance on installation and which cables under certain conditions could be operated at 600/1 000 V.Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 18/11/2009 07:48, Uncontrolled Copy, (c) BSIPAS 5308-1:20092 BSI 20092 Normative referencesThe follo
31、wing 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 (including any amendments) applies.BS 5099, Electric cables Voltage levels for spark testingBS
32、 5467:1997, Electric cables Thermosetting insulated, armoured cables for voltages of 600/1 000 V and 1 900/3 300 VBS EN 10257-1, Zinc or zinc alloy coated non-alloy steel wire for armouring either power cables or telecommunication cables Part 1: Land cablesBS EN 50290-2-22:2002, Communication cables
33、 Part 2-22: Common design rules and construction PVC sheathing compoundsBS EN 50290-2-23:2002, Communication cables Part 2-23: Common design rules and construction PE insulationBS EN 50290-2-24:2002, Communication cables Part 2-24: Common design rules and construction PE sheathingBS EN 50290-2-29, C
34、ommunication cables Part 2-29: Common design rules and construction Cross-linked PE insulation compoundsBS EN 50307, Lead and lead alloys Lead and lead alloy sheaths and sleeves of electric cablesBS EN 50334, Marking by inscription for the identification of cores of electric cablesBS EN 60228:2005,
35、Conductors of insulated cablesBS EN 62230, Electric cables Spark-test methodPD 2379, Register of colours of manufacturers identification threads for electric cables and cordsIEC 60050-461, International Electrotechnical Vocabulary Part 461: Electric cables3 Terms and definitionsFor the purposes of t
36、his PAS the definitions given in IEC 60050-461 apply.Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 18/11/2009 07:48, Uncontrolled Copy, (c) BSI BSI 2009 3PAS 5308-1:20094 ConductorA conductor shall conform to Table 1 or Table 2.Table 1 Details of conductors and insulation thicknessConductor
37、 Insulation thickness Maximum core diameterNominal cross-sectional areaBS EN 60228:2005 conductor classMaximum resistance at 20 C (multipair) A)Nominal Minimummm2W/km mm mm mm0.50 1 36.8 0.50 0.45 1.901.00 1 18.4 0.60 0.50 2.450.50 5 39.7 0.60 0.50 2.351.50 2 12.3 0.60 0.50 3.002.50 2 7.6 0.60 0.50
38、3.25A)These resistance values are 2% higher than the values in BS EN 60228:2005 to allow for cables of multipair construction.Table 2 Details of conductors and enhanced insulation thicknessConductor Insulation thickness Maximum core diameterNominal cross-sectional areaBS EN 60228:2005 conductor clas
39、sMaximum resistance at 20 C (multipair) A)Nominal Minimummm2W/km mm mm mm1.50 2 12.3 0.70 0.60 3.202.50 2 7.6 0.70 0.60 3.45A)These resistance values are 2% higher than the values in BS EN 60228:2005 to allow for cables of multipair construction.5 InsulationInsulation shall be either thermoplastic P
40、E insulation conforming to BS EN 50290-2-23:2002, grade L/MD or a cross-linked PE insulation compound conforming to BS EN 50290-2-29.The thickness of the insulation shall conform to Table 1 or Table 2. 6 Laying up6.1 PairsTwo insulated conductors shall be twisted together to form a pair. The lengths
41、 of lay used shall be such that the two cores forming each pair are not dissociated by normal handling. The length of lay of any pair shall not exceed 100 mm.Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 18/11/2009 07:48, Uncontrolled Copy, (c) BSIPAS 5308-1:20094 BSI 20096.2 Two-pair cable
42、s without individual pair screens (quads)Two-pair cables without individual pair screens (quads) shall have four cores laid in quad formation round a central dummy.6.3 Pair identification6.3.1 Cables without individual pair screensUnscreened pairs shall be identified either:a) by means of coloured i
43、nsulation in the sequence specified in Annex C, starting at the centre; orb) by each pair in the cable having either one black and one white core or, on agreement between the customer and manufacturer, one black and one blue core. Each core shall also be identified through marking by inscription of
44、a number on the cores insulation in accordance with BS EN 50334. Both cores in a pair shall be marked with the same number.6.3.2 Cables with individual pair screensScreened pairs shall be identified either:a) by means of coloured insulation in the sequence specified in Annex C, starting at the centr
45、e; orb) by each pair in the cable having either one black and one blue core or, on agreement between the customer and manufacturer, one black and one white core. Each pair shall be covered in a numbered polyester film. The numbering shall be such that each pair is distinguishable from any other pair
46、s in the cable. The distance between each number shall not be greater than 50 mm.NOTE The numbered polyester film may also serve as part of the pair screen.6.4 Pair screensWhen individual pair screens are used, each pair shall have a laminated screening tape applied with a minimum overlap of 25% wit
47、h the metallic side down in electrical contact with a drain wire.The laminated screening tape shall comprise aluminium bonded to polyester with a minimum thickness of aluminium of 0.008 mm and a minimum thickness of polyester of 0.010 mm.The drain wire shall comprise one or more tinned annealed copp
48、er wires with a total cross-section of not less than 0.5 mm2.Over the screening tape, either two polyester tapes shall be applied with a minimum overlap of 25%, or one polyester tape shall be applied with a minimum overlap of 50%.Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 18/11/2009 07:4
49、8, Uncontrolled Copy, (c) BSI BSI 2009 5PAS 5308-1:20096.5 Cabling of pairsThe required number of pairs shall be assembled together using the reverse layer or reciprocating lay technique. The cable shall be so constructed that the pairs are in concentric layers.NOTE 1 Non-hygroscopic fillers may be used to maintain a circular formation.NOTE 2 The number of pairs should preferably be 1, 2, 5, 10, 15, 20, 30 or 50.6.6 Binder tape6.6.1 Cables without a collective screenCables without
