1、BS 8512:2008Electric cables Code of practice for the storage, handling, installation and disposal of cables on wooden drumsICS 29.060.20NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDPublishing and copyright informationThe BSI copyright notice displayed in this
2、 document indicates when the document was last issued. BSI 2008ISBN 978 0 580 59979 8The following BSI references relate to the work on this standard:Committee reference GEL/20/17Draft for comment 07/30169968 DCPublication historyFirst published March 2008Amendments issued since publicationAmd. no.
3、Date Text affectedBS 8512:2008 BSI 2008 iBS 8512:2008ContentsForeword ii1 Scope 12 Normative references 13 Terms and definitions 24 Personal protective equipment 35 Storage 36 Manual handling 57 Lifting 58 Unwinding and rewinding 69 Storage and handling at the installation site 810 Installation 911
4、Disposal 9Bibliography 10List of figuresFigure 1a Correct drum storage 4Figure 1b Incorrect drum storage 4Figure 1c Drum storage view from the top 4Figure 2 Handling drums 5Figure 3 Lifting by crane 6Figure 4 Lifting by fork lift trucks 6Figure 5 Unwinding cable 6Figure 6 Rewinding cable 7List of ta
5、blesarmoured cables 8Summary of pagesThis document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 10, an inside back cover and a back cover.Table 1 Minimum barrel diameters for 600/1 000 V single wire BS 8512:2008ii BSI 2008ForewordPublishing informationThis British Stand
6、ard is published by BSI and came into effect on 31 March 2008. It was prepared by Subcommittee GEL/20/17, Low voltage cables, under the authority of Technical Committee GEL/20, Electric cables. A list of organizations represented on this committee can be obtained on request to its secretary.Informat
7、ion about this documentThis is a new standard, which has been written to give sound guidance on how to handle cables supplied on wooden drums between the point of manufacture and the point of installation. The need for such guidance is most apparent when cables are packed, transported, stored and ha
8、ndled in the form of coils wound on to large wooden cable drums, and is primarily intended for stockists, wholesalers, distributors and contractors. The purpose of this new code of practice is to offer codified information to ensure that cable reaches the point of installation in the best possible c
9、ondition and can be used as part of any health and safety assessment.Use of this documentAs a code of practice, this British Standard takes the form of guidance and recommendations. It should not be quoted as if it were a specification and particular care should be taken to ensure that claims of com
10、pliance are not misleading.Any user claiming compliance with this British Standard is expected to be able to justify any course of action that deviates from its recommendations.It has been assumed in the preparation of this British Standard that the execution of its provisions will be entrusted to a
11、ppropriately qualified and experienced people, for whose use it has been produced.Presentational conventionsThe provisions in this standard are presented in roman (i.e. upright) type. Its recommendations are expressed in sentences in which the principal auxiliary verb is “should”.Commentary, explana
12、tion and general informative material is presented in smaller italic type, and does not constitute a normative element.Contractual and legal considerationsThis publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compli
13、ance with a British Standard cannot confer immunity from legal obligations. BSI 2008 1BS 8512:20081 ScopeThis British Standard gives recommendations for the storage and handling of cables for fixed installations, rated up to 1 900/3 300 V, that are packaged on wooden cable drums suitable for storage
14、 outdoors.NOTE The recommendations could also be applied to: cables of higher rated voltages that are packaged on wooden drums; and cables of similar size, on similar wooden drums, and made to standards and specifications not specifically quoted here.This standard does not cover metal drums, cable s
15、pools or cable reels, or trailing and reeling cables.2 Normative referencesThe 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 (including
16、 any amendments) applies.BS 5308 (all parts), Instrumentation cablesBS 5467, Electric cables Thermosetting insulated, armoured cables for voltages of 600/1 000 V and 1 900/3 300 VBS 6004, Electric cables PVC insulated, non-armoured cables for voltages up to and including 450/750 V, for electric powe
17、r, lighting and internal wiring BS 6007, Electric cables Single core unsheathed heat resisting cables for voltages up to and including 450/750 V, for internal wiringBS 6195, Electric cables Rubber or silicone rubber insulated flexible cables and cords for coil end leadsBS 6231, Electric cables Singl
18、e core PVC insulated flexible cables of rated voltage 600/1 000 V for switchgear and controlgear wiringBS 6346, Electric cables PVC insulated, armoured cables for voltages of 600/1 000 V and 1 900/3 300 VBS 6500, Electric cables Flexible cords rated up to 300/500 V, for use with appliances and equip
19、ment intended for domestic, office and similar environmentsBS 6724, Electric cables Thermosetting insulated, armoured cables for voltages of 600/1 000 V and 1 900/3 300 V, having low emission of smoke and corrosive gases when affected by fireBS 6883, Elastomer insulated cables for fixed wiring in sh
20、ips and on mobile and fixed offshore units Requirements and test methodsBS 7211, Electric cables Thermosetting insulated, non-armoured cables for voltages up to and including 450/750 V, for electric power, lighting and internal wiring, and having low emission of smoke and corrosive gases when affect
21、ed by fireBS 8512:20082 BSI 2008BS 7629 (all parts), Specification for 300/500 V fire resistant electric cables having low emission of smoke and corrosive gases when affected by fireBS 7846, Electric cables 600/1 000 V armoured fire-resistant cables having thermosetting insulation and low emission o
22、f smoke and corrosive gases when affected by fireBS 7889, Electric cables Thermosetting insulated, unarmoured cables for a voltage of 600/1 000 VBS 7919, Electric cables Flexible cables rated up to 450/750V, for use with appliances and equipment intended for industrial and similar environmentsBS 843
23、6, Electric cables 300/500 V screened electric cables having low emission of smoke and corrosive gases when affected by fire, for use in walls, partitions and building voids Multicore cablesIEC 60050-461, International Electrotechnical Vocabulary Part 461: Electric cables3 Terms and definitionsFor t
24、he purposes of this British Standard, the terms and definitions given in IEC 60050-461 and the following apply.3.1 cable drumcylinder with containing flanges, onto which cable is wound during manufacture3.2 cable spool (reel)cable drum of small size, usually with flanges made of cardboard, hardboard
25、 or plywood3.3 barrel cylindrical part of a cable drum or cable spool on which the cable is wound3.4 laggingexternal protective material covering cable wound on a drum3.5 battenstrip, generally made of wood, which when assembled forms the lagging3.6 end capdevice placed on the ends of a cable to pre
26、vent the ingress of moisture BSI 2008 3BS 8512:20084 Personal protective equipment4.1 A risk assessment should be conducted to ascertain the most suitable personal protective equipment, including but not limited to: stout gloves; protective footwear; safety helmets; eye protection; protective clothi
27、ng. NOTE Attention is drawn to the Management of Health and Safety at Work Regulations 1992 2.4.2 Loose clothing should be avoided.4.3 Gloves with stapled palms should not be used. 4.4 Gloves used should be designed to protect the wearer from sleeve cuffs being caught in a rolling drum.5Storage5.1 C
28、ables stored at temperatures which are below those recommended for installation by cable guides to use in relevant product standards, or cable manufacturers should not be subjected to any mechanical stress, i.e. shocks, impact, bending and torsion.5.2 Cable drums should be stored on a flat, firm, ev
29、en and well-drained surface, in an upright position, using wedges in the heels of the flanges (see Figure 1a). They should not be stored on their side (see Figure 1b) or stacked, i.e. flange on flange.5.3 Cable drums should be stored so that the drum flanges do not touch cable on another drum (see F
30、igure 1c).5.4 Drums of cable that have been supplied with battens already applied should be left in place. Drums that have been supplied without battens, or drums where battens have been removed, should be assessed as to the likelihood of damage to the cable, taking into account the storage facility
31、 or method of transport, and have battens fitted or re-fitted if considered appropriate.5.5 To protect against UV degradation, all cables in long-term storage should be shielded from direct sunlight or other UV sources by suitable coverings such as black plastic sheeting.5.6 A regular system of insp
32、ection and action should be followed, paying particular attention to drums that have been stored for long periods. If a drum has deteriorated or been damaged, the cable should be rewound onto a replacement drum, and the cable inspected for damage. Work Regulations 1999 1 and the Personal Protective
33、Equipment at BS 8512:20084 BSI 2008Figure 1a Correct drum storageThe drum should be stood upright, using wedges in the heels of the flanges.Figure 1b Incorrect drum storageThis type of storage is not recommended.Figure 1c Drum storage view from the topThe drums should be aligned as shown. BSI 2008 5
34、BS 8512:20086 Manual handling6.1 A risk assessment should be carried out for the manual handling of drums.NOTE Attention is drawn to the Manual Handling Regulations 1992 3, as amended in 2002, which apply to a wide range of manual handling activities including lifting, lowering, pushing, pulling and
35、 carrying.6.2 Cable drums should be rolled only for short distances over flat, solid ground in the direction indicated by the arrow on the flange (see Figure 2), having regard to: the mass of the drum; the method and direction of rolling; the condition of floor/ground including slopes; the risk asse
36、ssment.Particular care should be taken when drums are full of cable.7Lifting7.1 Only fork-lift trucks or cranes of sufficient size and weight limit for the drums to be lifted should be used.7.2 When lifting drums by crane, a spreader beam should be used (see Figure 3). The spreader beam should be of
37、 the weight capacity and length specified by the manufacturer for the weight and width of drum. Any slings or hooks should be of the correct weight capacity, as specified by the manufacturer, for the drum to be lifted.7.3 When lifting drums by fork lift trucks, the cable drum flanges should be at ri
38、ght angles to the forks, and the forks should be longer than the width of the drum (see Figure 4). NOTE Specially adapted fork lift trucks may use spindle type lifting bars, booms or fork shoes or extensions, for which advice can be sought from the truck supplier. Figure 2 Handling drumsNOTE Wooden
39、drums frequently have an arrow marked on their flanges to indicate both the direction that cable is to be wound on to them and also the direction in which the drum is to be rolled.BS 8512:20086 BSI 20088 Unwinding and rewinding8.1 Unwinding and rewinding of cables should be performed as shown in Fig
40、ure 5 and Figure 6.Figure 3 Lifting by craneFigure 4 Lifting by fork lift trucksNOTE It is important that drums are correctly positioned on the forks.Figure 5 Unwinding cableCables should be unwound as shown. Cable should not be unwound in this way.NOTE The arrow on the drum flange does not indicate
41、 direction of unwinding. BSI 2008 7BS 8512:20088.2 If a cable is to be rewound onto a different drum, then the drum selected should be capable of carrying the weight of the cable and have the appropriate minimum barrel diameter (MBD) which can be obtained from the cable manufacturer. Alternatively,
42、the MBD recommendations given in 8.3 and 8.4 should be followed. 8.3 The recommended MBDs for 600/1 000 V single wire armoured cable (15 cores) conforming to BS 5467, BS 6346, BS 6724 and BS 7846, given in Table 1, should be used.8.4 For cables not covered by Table 1, the MBD should be at least:a) 2
43、5 times the measured overall diameter for single core non-armoured cable with solid conductors; orb) 20 times the measured overall diameter for all other cable types. The above MBD values should be applied in accordance with but not limited to the following standards (as relevant): BS 5308, BS 6004,
44、 BS 6007, BS 6195, BS 6231, BS 6500, BS 6883, BS 7211, BS 7629, BS 7889, BS 7919 and BS 8436.8.5 Repeated winding and excessive tension should be avoided as it might cause damage to the cable. Figure 6 Rewinding cableCable should be rewound from drum to drum as shown. Cable should not be rewound in
45、this way.NOTE The arrow on the drum flange does not indicate direction of unwinding.BS 8512:20088 BSI 20088.6 Following cutting, all cable ends should be sealed to prevent moisture ingress. NOTE Pre-formed heat shrink end caps with a moisture seal are most suitable for this purpose. The use of tapes
46、 alone might not guarantee moisture tight sealing.8.7 Some cables have coloured tape end marking to indicate direction of lay and core sequence (as required by some cable standards), where present, this marking should be reinstated after cutting.8.8 Slack turns should be tightened to prevent abrasio
47、n damage and trapped turns.9 Storage and handling at the installation site9.1 Battens should not be removed from drums until the cable is about to be installed. 9.2 Battens should be made safe (i.e. nails removed) and removed from the immediate area prior to cable installation. Table 1 Minimum barre
48、l diameters for 600/1 000 V single wire armoured cablesConductor areamm2nominalSingle core cableMBD (mm)2 core cableMBD (mm)3 core cableMBD (mm)4 core cableMBD (mm)5 core cableMBD (mm)1.5 N/A 200 225 225 2502.5 N/A 225 250 250 2754 N/A 250 250 275 3006 N/A 275 275 300 32510 N/A 300 325 350 37516 N/A
49、 325 350 375 42525 N/A 400 425 475 50035 N/A 450 475 500 55050 375 450 475 500 65070 425 475 500 600 72595 450 525 575 650 N/A120 500 575 625 725 N/A150 550 625 700 800 N/A185 625 700 775 875 N/A240 675 775 850 975 N/A300 725 825 925 1 075 N/A400 825 925 1 025 1 200 N/A500 900 N/A N/A N/A N/A630 1 000 N/A N/A N/A N/A800 1 125 N/A N/A N/A N/A1 000 1 225 N/A N/A N/A N/A BSI 2008 9BS 8512:200810 InstallationCOMMENTARY ON 10 Installation of cables is a very wide
