Bs 302-Part4-1987(Specification of Ropes for Lifts)

8/14/2019 Bs 302-Part4-1987(Specification of Ropes for Lifts)

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2/12

BSI B S * 3 0 2 P A R T 4 8 7 W L6211669 OLL118112 9BS 302 Part 4 : 1987 .

Foreword

This Part of BS 302 has been prepared under the directionof the Mechanical Handling Standards Committee. It s onePart of a combined revision of BS 302 : 1968, BS 236 : 1968,BS 329 : 1968, BS 330 : 1968, BS 365 : 1968 andBS 3530 : 1968, which are withdrawn. BS 302 is nowpublished in six Parts and takes account of both nationaland international developments since 1968.-This Part (Part 4) specifies requirements for ropes for lif tsadditional to the general requirements in Part 1. Other Partsspecify the additional requirements or other particular usesof ropes:

Part 2 Specification or ropes for general purposesPart 3 Specification for zinc coated ropes for shipsPart 5 Specification or ropes for hauling purposesPart 6 Specification or ropes for mine hoisting

Two further Parts are in preparation, covering larger diameterropes (64 mm to 205 mm diameter) and higher strengthropes and will be Parts 7 and 8 respectively.In line with the principles of international standardI S 0 2408, publishedby the International Organizationfor Standardization (ISO), the constructions are groupedaccording to the number of outer wires in the strands.The general requirements of BS 302 : Part and themethods used for calculating breaking loads and approxi-mate masses comply wi th IS 2408. In respect of individualusages the ropes in Parts 2 and 3 are fu lly in accordancewith I S 0 2408 and those in section two o f Part 4 are inaccordance with IS 4344. In each of these Parts however,certain additional ropes s t i l l in common use i n the UK havebeen included.In line with current international practice, the term 'zinccoated' has been adopted in this standard in place of'galvanized'. The terms are synonymous.Purchasers ordering to BS 302 are advised to specify intheir purchasing contract that the manufacturer operate aquality system in compliance with the appropriate Part ofBS 5750, or suitable equivalent, to ensure themselves thatproducts claimed to comply with BS 302 consistentlyachieve the required level of quality.Wire rope users will find valuable information in thecompanion publication BS 6570 'Code of practice for theselection, care and maintenance of steel wire ropes'.Compliance with a British Standard does not of i tsel fconfer immunity from legal obligations.

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4/12

BS 302 : Part 4 : 1987Speci f icat ion. Sect ion one

Section one. General

1 ScopeThis Part of BS 302, which consists of three sections,specifies the requirements for single and dual tensile steelwire ropes for lifts and i s for use in conjunction withBS 302 : Part 1.Section two applies to suspension and ancillary ropes forelectric lifts which:

(a) are new;(b) have been modified to use 1370/1770 grade dualtensile rope; or(c) are capable of using 1370/1770 grade dual tensilerope.

NOTE 1. Section two i s generally aligned with I S 0 4344 except thatthe 1770grade single tensile ropes which are not used in the UK arenot included. It also aligns wi th and i s complementary to BS 5655 :Part 1 which is the English language edition of EN 81 : Part 1.Section three applies to suspension and ancilliary ropes forexisting electric li fts that require replacement of 1180/1770grade ropes and are not capable of accepting the ropesspecified in section two with higher tensile outer wires.NOTE 2. The ropes in section three were previously specif ied inBS 329, and include some non-preferred sizes.NOTE 3. Information to be given by the purchaser on the enquiryand order is given in appendix F of BS 302 : Part 1 : 1987.NOTE 4. Recommendations or the handling, use and care of steelwire ropes for electric lifts are given in appendix A.NOTE 5. The titles of the publications referred to in this standardare listed o n the inside back page.

2 DefinitionsFor the purposes of this Part of BS 302, the definitionsgiven in BS 302 : Part 1 apply.

3 Compliance1570 grade and 1370/1770 grade ropes shall comply withthe requirements of sections one and two of this Part andwith BS 302 : Part 1. 1180/1770 grade ropes shall complywith the requirements of sections one and three of this Partand with BS 302 : Part 1.

4 Material4.1 Wire4.1.1 General. The wire used for the manufacture of wireropes to this standard,as shown in table 2, shall comply wiisections one and two of BS 2763 : 1982. The mechanicaltests shall be confined to the tensile strength and torsionrequirements.4.1.2 Wire finish. The wire shall be bright or zinc-coated.NOTE. It wi ll need to be stated by the.purchaser on his enquiry andorder if zinccoated wire is required, otherwise bright wire wi ll besupplied.

4.2 RopecoreThe core shall be of fibre and shall comply with 3.2 ofBS 302 : Part 1 : 1987.4.3 JointsWires of over 0.25 mm diameter shall be joined by weldingor brazing. Wires below these s i zes shall be welded, brazedor tucked.

5 Directionof layRopes shall be of right-hand lay or of left-hand lay.NOTE. For economic reasons right-hand lay is preferred and wi ll besupplied. It will need to be stated by the purchaser on his enquiryand order if a left-hand lay rope i s required.

6 Diameter and ovality tolerances6.1 Diameter tolerancesWhen measured in accordance with appendix A of BS 302 :Part 1 : 1987, under no load and under a load of 10 ofthe minimum breaking load (MBL), the actual diametershall be equal to the nominal diameter with a tolerance inaccordance with table 1.

Table 1. Ro p e diameter tolerances

+2

10 MBL4

+3

6.2 Ovality tolerancesThe maximum variation between any of the four measure-ments made in accordance wi th appendix A of BS 302 :Part 1 : 1987 under no load or under a load of 10 of theminimum breaking oad shall not exceed 3 of the nominaldiameter.

7 LubricationThe rope shall be lubricated in stranding and wiped wellback.The main fibre core shall be adequately lubricated.Lubricants shall comply with 3.3 of BS 302 : Part 1 : 1987.

8 Wire rope constructions and sizesConstructions and size ranges shall be as given in table 2.

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5/12

O

e

BS 302 : Part 4 : 1987Section one

Table 2. Wire rope construction sRopegroup

6 x 19

8 x 1 9

Descr ip t ion~~~

Six strands, 8 to 12outer wires in a strandTw o o r three layers overa king wireWires equal laidEigh t strands, 8 to 12outer wires in a strandTw o o r th ree layers overa king wireWires equal laid

Size rangediameter)mm6 to 22

8 t o 22

Typ ica l const ruc t ion

6 x 19 9/9/1)6 x 19 12/6+6F/1)

8 x 19 9/9/1)8 x 19 12/6+6F/ I )

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6/12

BSI B S X 3 0 2 P A R T U 4 87 L b 2 4 b b 7 OL LBLib bBS 302 : Part 4 :987Section two

Section two . 1370/1770 grade dual tensile rope and 1570 gradesingle tensile rope

9 Tensi le gradeof wires 10 Minimum breaking oadExcluding filler wires and kin g wires, the tensile grade forsingle tensi le rope shall be 1570 N/mmz * and the tensilegrade for dual tensile ropes shall be:The m inim um breaking loads shall be as given in tables 3and 4.NOTE. For guidanc e, these tables also give appro xim ate masses ofropes, calcu lated as in C.2 of BS 302 : Part 1 : 1987.a) outers: 1370 N/mm2;

b) inners: 1770 N/mm2.

Table 3. 6 x 19 construction group: equal lay

6 x 19 (9/9/1) FCNomina ldiameter

mm68

101113161922

6 x 19 (12/6 t 6F/1) FCMin imum break ing fo rcd load of rope corresponding o n omin altensile grade o f the wires o f 157 0 N/mm z single tensile;1370/1770 N/mm 2 du tens i le ; bo th calcu la ted on a c ing letensile o f 1 5 00 N / m mkN t

17.8 1.8131.7 3.2349.5 5.0559.9 6.1 183.7 8.53

127 12.9179 18.2240 24.5

Natural f ibre Man-made f ibre

kg/100 m13.023.136.143.761 O92.4

130175

kg/100 m12.722.535.242.659.590.1

127170

I N/ m m 2 = 1 MPa.




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BSI B S X 3 0 2 P A R T S 4 87 L b 2 4 b b 9 031.13847BS 302 Part 4 : 987Section two

Table 4. 8 x 19 construct ion group: equal lay

8 x 19 (91911) FCNomina ldiameter

mm101113161922

8 X 19 (1216+ 6F/1) FCMin im um break ing fo rce / load o f rope cor respond ing to nomina ltensi le grade of t hq wires of 1570 N/m m2 single tensi le;1370/1770 N/mm dual tensile; bo th calcu lated on a singletensi le o f 1500 N/mm2kN28.143.953.274.3

113159213

t2.864.485.427.57

11.516.221.7

5

Approx imate mass f ibre co red)Natural f ibre

kg/100 m22.234.742.058.688.8

125168

Man-made ibre

kg1100 m21.733.941 O57.386.8

122164

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8/12

BS 302 : Part 1987Sect ion three

Section three. 1 180/1770 g rade dual tens ile rope

11 Tensile grade of wires 12 Minimum breaking loadExc ept fill er w ires and ki ng wires, the tensile grade of wiresshall be:

For the purposes o f clause 7 o f BS 302 : Part 1 : 1987,the min imu m breaking loads shall be as given in tables 5a) outers: 1180 N/mm2;b) inners: 1770 N/mrn2.

and 6.NOTE. For guidance, these tables also give app ro xim ate masses ofropes, calculated as in C.2 of BS 302 : Part 1 : 1987.

Table 5. 6 x 19 construction group: equal lay

6 x 19 12/6 t 6F/1) FC 6 x 19 9 /9/1) FCNominaldiameter Min imu m breaking force/ load of rope corresponding o nominaltensi le grade of th e wires of 1370 N/mm 2, 1180/1770 N/mm 21370/1570 N/mm 2 calculated on a single tensi le of 1370 N/mm 2mm

6.589.5

111316

kN19.229.141 O55.076.8

116

t1.962.974.185.617.83

11.8

6

Appro ximate mass f ibre cored)Natural f ibre Man-made f ibr ekg/100 rn kg/100 rn15.3 14.923.1 22.532.6 31.843.7 42.661 O 59.592.4 90.1


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9/12

BSI B S * 3 0 2 P A R T * 4 87 W 1 b 4 b b 7 0141847 1~

BS 302 Part 4 : 1987Section three

.Table 6. 8 x 19 construction group: equal lay

8 x 19 (9/9/11 FC 8 x 19 (12/6 t 6F/1) FCNom ina ldiameter

mm89.5

11131619

I

Natura l f ibreMinimu m break ing forcehoad of rope cor responding to nom inaltensi le grade of the wires of 1370 N/mm2, 1180/1770 N/mm 2,1370/1570 N/m m2 calculated on a single tensile o f 1370 N /m m 2k N25.235.647.766.6

101142

t2.573.634.866.79

20.314.5

kg/100 m22.231.342.058.688.8

125

Man-made f ibrekg/100 m21.730.641 O57.386.8

122


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10/12

BSI B S * 3 0 2 PART*K4 8 7 l b 2 4 6 6 9 L 4 L 8 5 0 I MBS 302 : Part 4 : 1987Appendix AAppendix

Appendix A. Recommendations orhandling use and care of steel wire ropesfor electric liftsA. l StorageThe wrappings of a rope should be removed immediatelyafter delivery and the rope examined.Ropes should be stored in a cool, dry building whosetemperature i s kept reasonably constant to preventcondensation, and should not be in contact with the floor.Ropes should never be stored where they are liable to beaffected by acid fumes, steam or other corrosive influences.Rope in store should be examined periodically.A.2 Uncoiling and handlingRopes should be paid out from a reel or coil and, to preventthe possibility of kinking or disturbance to the lay, shouldbe paid out without slack and in a straight line. A coil ofrope should preferably be paid out from a turntable. A reelof rope should be set up with a spindle supported on jacks.A rope should never be unwound by throwing off turnswith the coil or reel flat on the ground.Langs lay rope is more liable to deform than ordinary lay,and will give satisfactory service only if handled with duecare.A 3 End fittingsAll rope terminations should comply with the appropriateBritish Standard*. They should be strictly compatible wi ththe wire rope, correctly fitted, tested and certified whereapplicable.

.e . BS 462, BS 463 or BS 464.

8

A.4 Hand splicingA thimble or loop splice made in the wire rope should havea t east three tucks with a whole strand of the rope, and twotucks with one half of the wires cut out of each strandmade under and over, against the lay of the rope. The spliceshould be tightly drawn and neatly made.A 5 Ferrule secured eye terminationsFerrule secured eye terminations fi tted to wire ropes shouldbe in accordance wi th BS 5281.A.6 InstallationIt i s recommended that al l the ropes of any one liftinstallation should be taken from one rope-making(production length).Prior to installation of a new rope, grooves of drumssheaves and pulleys should be examined to ensure that theprofile i s correct for the size and type of rope to be fitted.Where necessary worn grooves should be machined to thecorrect profile. A new rope installed on to a worn sheavewi ll suffer damage which could greatly reduce i t s service life.Care should be taken when installinga rope to preventunlaying of the rope due to rotation o f the free end. This i sparticularly important with Langs lay ropes.Servings should not be removed without ensuring that thelay of the rope wil l be held.Care should be taken when installing multiple ropes toensure tensions are equal, and provision should be made forany necessary length adjustment.After installation ropes should be checked for lengths andtensions.A.7 MaintenanceMaintenance should comprise regular inspections andcleaning, with records kept of any adjustments carried out,any defects noted, or any other incident relative to ropeperformance. The inspection should always include any endfittings, with emphasisa t the point of entry.


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B S I BS 302 P A R T * 4 87 M 1 b i 4 b b 7 0141851 T M

Publications referred t oB S 462B S 463B S 464BS 2763B S 5281B S 5655BS 5750 Qual ity systemsBS 6 5 7 0 *IS 2 4 0 8 * Steel wire ropes fo r general purposes CharacteristicsIS 4 3 4 4 * Steel wire ropes fo r lif tsEN 81

Specification for w ire rope gripsSockets for wi re rope8Thimbles for wire ropesSpecification for round carbon steel wire for wire ropesFerrule secured eye terminat ions for wire ropesLif ts and service lif tsPart 1 Safety rules for the construction and installationof electric liftsPart2 Specification for manufacture and installationCode of practice fo r the selection, care and maintenanceof steel wire ropes

Safety rules for the construction and installation of lif ts and service lift sPart 1 Electric l i f t s

I

*Referred to in the foreword only.PYRIGHT 2002; British Standards Institution on ERC Specs and Standards Document provided by IHS Licensee=Qatar Petroleum/5943408103, User=, 10/12/2002

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12/12

BSI B S * 3 0 2 P A R T a 4 8 7 1 6 2 4 6 6 7 0141852 L MBS 302 Part 4: 1987

This Brit ish Standard, having been prepared under the direction ofthe Mechanical Handling Standards Committee, was published underthe authority of the Board of BSI and comes into effecton 30 June 1987.

British Standards Institution, 1987First published, as BS 302, September 1927First revision, as BS 302 and 621, December 1957Second revision, as BS 302, May 1968Third revision, as BS 302 : Part 4, June 1987.ISBN O 580 15659 1The foll owing BSI references relate to the work on this standard:Committee reference MHE/2 Draft for comment 85170788 DC

British Standards Institution. Incorporated by Royal Charter, BSI i sthe independent national body for the preparation of BritishStandards. It i s the UK member of the International Organizationfor Standardization and UK sponsor of the British NationalCommittee of the International Electrotechnical Commission.In addition to the preparation and promulgation of standards. BSIoffers specialist services including the provision of informationthrough the BSI Library and Standardline Database; Technical Helpto Exporters; and other services. Advice can be obtained from theEnquiry Section, BSI, Milton Keynes MK14 6LE. telephoneO908 221 166, telex 825777.Copyright. Users of British Standards are reminded that copyrightsubsists in al l BSI publications. No part of this publicat ion may be

reproduced in any form withou t the prior permission in writing ofBSI. This does not preclude the free use, in the course ofimplementing the standard, of necessary details such as symbols andsize, type or grade designations. Enquiries should be addressed tothe Publications Manager, BSI, Linford Wood, Milton KeynesMK14 6LE. The number for telephone enquiries i s O908 220022and for te lex 825777.Contract requirements. A British Standard does not purport toinclude al l the necessary provisions of a contract. Users of BritishStandards are responsible for their correct application.Revision of British Standards. British Standards are revised, whennecessary, by the issue either of amendments or of revised editions.It is important that users of British Standards should ascertain thatthey are in possession of the latest amendments or editions.Automatic updating service. BSI provides an economic, individualand automatic standards updating service called PLUS. Details areavailable from BSI Enquiry Section a t Mi lton Keynes, telephone0908 221 166, telex 825777.Information on al l BSI publications is in the BSI Cataloguesupplemented each month by BSI News which i s available t osubscribing members of BSI and gives details of new publications,revisions, amendments and withdrawn standards. Any person who,when making use of a Br itish Standard, encounters an inaccuracy orambiguity, is requested to not ify BSI without delay in order thatthe matter may be investigated and appropriate action taken.

Com mittees responsible fo r this British StandardThe preparation of this British Standard was entrusted by theMechanical Handling Standards Committee (MHE/-) to TechnicalCommittee MHE/2, upon which the fo llowing bodies wererepresented:Associated Offices Technical CommitteeAssociation of Supervisory and Executive EngineersBritish CoaBritish Ports Association and the National Association of PortsBritish Railways BoardBritish Steel Industry (Wire Section)Bureau Veritas

Employers

Amendments issued since publication

Chain Testers Association of Great BritainDepartment of t h e Environment (Property Services Agency)Federation of Manufacturers of Construction Equipment and CranesFederation of Wire Rope Manufacturers of Great Brita inHealth and Safety ExecutiveInstitution of Mechanical EngineersInst ituti on of Mining EngineersInst ituti on of Mining and MetallurgyMinistry of DefenceNational Association of Li ft MakersZinc Development Association

Amd. No. Date o f issue Text affected

British Standards Institution . 2 Park Street London W1A 2BS Telephone 01-629 000 Telex 266933

..W9aP..

8706-5-2k-8 MH 2PYRIGHT 2002 B iti h St d d I tit ti ERC S d St d d D t id d b IHS Li Q t P t l /5943408103 U 10/12/2002

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Documents

Bs 302-Part4-1987(Specification of Ropes for Lifts)