ASTM F1701-2005 Standard Specification for Unused Polypropylene Rope with Special Electrical Properties《具有特殊电气性能的新聚丙烯绳索的标准规范》.pdf

1、Designation: F 1701 05Standard Specification forUnused Rope with Special Electrical Properties1This standard is issued under the fixed designation F 1701; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A

2、 number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers the requirements, sizes, con-struction, tests, and procedures for unused ropes for use byelectrical utiliti

3、es and related industries on energized linesoperating at voltages higher than 1 kV.1.2 This specification covers the minimum electrical, me-chanical, and physical properties guaranteed by the manufac-turer and the detailed procedures by which such properties areto be determined. The purchaser has th

4、e option to perform orhave performed any of these tests in order to verify theguarantee. Claims for failure to meet the specification aresubject to verification by the manufacturer.1.3 The rope to which this specification applies is designedto be used in a clean and dry condition, on or near energiz

5、edlines.1.4 A margin of safety shall be allowed between themaximum voltage and working distances on which it is usedand the test voltage and lengths at which it is tested.1.5 It is common practice for the user of this type ofequipment to prepare complete instructions and regulations togovern in deta

6、il the correct and safe use of such equipment.1.6 The use and maintenance of this equipment is beyondthe scope of this specification.1.7 The values stated in SI units are to be regarded as thestandard.1.8 The following safety hazards caveat pertains only to thetest method portion, Section 11, of thi

7、s specification: Thisstandard does not purport to address all of the safety concerns,if any, associated with its use. It is the responsibility of the userof this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.2. Re

8、ferenced Documents2.1 ASTM Standards:2D 1125 Test Methods for Electrical Conductivity and Re-sistivity of WaterD 4268 Test Methods for Testing Fiber RopesE4 Practices for Force Verification of Testing MachinesF711 Specification for Fiberglass-Reinforced Plastic (FRP)Rod and Tube Used in Live Line To

9、ols2.2 IEEE Standards:3IEEE Std 4 Standard Techniques for High Voltage Testing2.3 Other Standard:4Cordage Institute CI-1301 Polypropylene Fiber Rope3-Strand and 8-Strand Constructions (April 1999)3. Terminology3.1 GeneralThe terms used in this specification are com-mon to and well known by the indus

10、tries that will be usingthem.4. Ordering Information4.1 Orders for rope under this specification should includethe following information:4.2 Manufacturers designation of the rope.4.3 Length of Coil or Reel:4.3.1 LengthsEach package shall be continuous through-out without splices or knots. Ends shall

11、 be taped, heat sealed,or served to prevent ravelling.4.3.2 Rope should be shipped in reels.5. Physical Properties5.1 HardnessRefer to 11.6.5.2 Diameter, Break Strength, and ElongationRefer to11.6.5.3 Melt PointRefer to 11.6.6. Mechanical Properties6.1 The primary mechanical property of rope is the

12、breakingstrength. Minimum breaking strengths, and associated nominaldesign characteristics (dimensions, mass, and acceptable varia-tions) of ropes are available from the Cordage Institute.1This specification is under the jurisdiction of ASTM Committee F18 onElectrical Protective Equipment for Worker

13、s and is the direct responsibility ofSubcommittee F18.35 on Tools and Equipment.Current edition approved Dec. 15, 2005. Published January 2006. Originallyapproved in 1996. Last previous edition approved in 2001 as F 1701-96(2001).2For referenced ASTM standards, visit the ASTM website, www.astm.org,

14、orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from Institute of Electrical and Electronics Engineers, Inc. (IEEE),445 Hoes Ln., P.O. Box 1331, Piscataway, NJ 08854-13

15、31.4Available from The Cordage Institute, 994 Old Eagle School Rd., Suite 1019,Wayne, PA 19087.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.7. Workmanship, Finish, and Appearance7.1 All sizes of rope shall be evenly laid and well

16、balancedin accordance with best rope making workmanship. Rope andstrands shall be free from kinks, strand knots, and darting yarnsor loose ends (inside yarns which project through cover yarnsof strand at intervals along the rope).8. Sampling and Number of Tests or Retests8.1 Composition of Batch to

17、be SampledSamples shall betaken from a homogeneous batch consisting of ropes of thesame size and same dimensions and which have been subject tothe same series of manufacturing operations and the samechecking procedure.8.2 Selecting the SamplesUnless otherwise agreed uponbetween the purchaser and man

18、ufacturer, take at random fromthe batch the number of samples, S, obtained from thefollowing equation:S 5 0.4 =Nwhere N = number of coils making up the batch.Where the calculated value of S is not a whole number, thenumber obtained shall be rounded to the nearest whole number.For example, 27.5 and 3

19、0.35 shall be rounded to 28 and 30,respectively. Where S 1, take one sample length.8.2.1 Specimen Selection LocationFor acceptance or re-testing of rope shipped in reel lengths, specimens shall beselected from each end. One specimen shall be selected fromthe outside end and one from the inside (drum

20、) end. This willrequire a re-reeling of the rope.8.3 For routine production testing, single-finished produc-tion runs of greater than 1828 m (6000 ft) tests shall beconducted at the beginning and end of the finished productionlength.9. Specimen Preparation9.1 Specimen preparation is included as a pa

21、rt of each testmethod. The ends of each rope specimen shall be heat scaled.10. Recommended Working Load10.1 Manufacturers furnishing rope under this specificationshall specify a recommended maximum working load.11. Test Methods and Performance Requirements11.1 The ropes complying with these specific

22、ations shallundergo two different tests, electrical and mechanical/physical,and are to be termed “nonconductive” rope. Samples of ropeselected in accordance with Section 7 from every productionlot (single finished production length) shall be tested and eachreel identified by lot (see 15.3).11.1.1 Th

23、e test sequence is (1) visual (Refer to Section 7;(2) electrical; (3) mechanical/physical.11.2 CautionIt is recommended that the test apparatus bedesigned to afford the operator full protection in performanceof his duties. Reliable means of deenergizing and groundingthe high-voltage circuit shall be

24、 provided.11.3 Electrical Test ProcedureWet TestThis is a rou-tine production test.11.3.1 Specimen for TestWhen selected in accordancewith 8.3, the test specimen shall be at least 2.4 m (8 ft) long sothat when the rope is held in a vertical position, there will be1.5 m (5 ft) of rope free of knots,

25、eyes, or splices.11.3.2 Handling of SpecimenWhen the specimen ishandled, it shall always be outside the test footage (see Fig. 1).11.3.3 Attachment of ElectrodesThe electrodes shall beattached prior to wetting the specimen. See Fig. 1 for attach-ment points. The electrode shall be made of one wrap o

26、f 22gage solid copper wire twisted tightly and pigtailed to ensureall filaments are in contact. See Fig. 1.11.3.4 Wetting of Specimen:11.3.4.1 A clean nonmetallic tank or trough shall be rinsedwith the same type water to be used during the wetting.11.3.4.2 The entire rope specimen shall be kept subm

27、ergedhorizontally in test water at a depth of 305 mm (1 ft) usingnon-metallic device(s) for a period of 15 min. There shall be nobends in this specimen.11.3.5 Water for WettingThe electrical resistivity of thewater used for wetting shall meet the requirements of IEEE-Standard 4, that is 100 V m at a

28、mbient temperature 615C.The resistivity may be measured by using the test methods asdescribed in Test Methods D 1125.11.3.6 Drying of SpecimenWithin 1 min after removingspecimen from wetting tank, the specimen shall be hung in avertical position with an unrestrained weight of 4.5 kg (10 lb)attached.

29、 Allow to dry at as near standard atmospheric condi-tions as practical with rope attachment point and weightattachment point as described in Fig. 1. The specimen shall beallowed to dry for 15 min.11.3.7 Leakage Readings:FIG. 1 Test Configuration for Electrical Routine Production TestF 1701 05211.3.7

30、.1 The 60 Hz voltage shall be applied immediatelyafter the 15-min drying period and shall be raised from 0 to 30kV in not less than 5 nor more than 15 s. The voltage shall beheld at 30 kV for 30 s. The leakage current obtained over the2 ft test section shall not exceed 50 A from the time of initiala

31、pplication of voltage until the end of the test. If the currentexceeds 50 A, the lot will be rejected. Refer to Fig. 2 for testcircuit.11.3.7.2 The wet test in 11.3 is a discriminatory test used asa method of determining the rope quality, not as a method ofdetermining the ropes ability to operate pr

32、operly under wetconditions in the field.11.4 Electrical Test ProcedureAcceptance TestThis is adry specimen acceptance test.11.4.1 Specimen for TestWhen selected in accordancewith 8.3, the test specimen shall be at least 2.4 m (8 ft) long sothat when the rope is held in a vertical position, there wil

33、l be1.5 m (5 ft) of rope free from knots, eyes, or splices (see Fig.1).11.4.2 Handling of SpecimenWhen the rope is handled, itshall always be outside the test footage (see Fig. 1).11.4.3 Electrodes:11.4.3.1 The electrodes shall be designed to shield out themajority of stray capacitive currents.11.4.

34、3.2 The electrodes shall be similar to those specified inSpecification F711 for testing FRP rod and tube. Electricalcontact is made through washers that fit snugly around therope. The electrodes shall be mounted in a suitable frame toallow the suspension of the 305 mm (12 in.) test sectionbetween th

35、e electrodes. A 4.5 kg (10 lb) weight shall beattached to the rope to maintain good electrical contact. SeeFig. 3. For alternative electrode design, see Fig. 4.11.4.4 Dry Test Leakage ReadingsThe 60 Hz voltageshall be raised from 0 to 100 kV rms in not less than 5 nor morethan 15 s. The voltage shal

36、l be held at 100 kV rms for 5 min.If at the end of 5 min the current is stable and has not exceeded100 A or flashed over, the specimen has passed the test. If atthe end of 5 min the current is not stable and does not exceed100 A, or flashover, the test shall continue for an additional 25min. If at t

37、he end of that time the rope has not flashed over andthe current has stabilized at less than 100 A, the specimen haspassed.NOTE 1The acceptance tests may be performed at the option of thepurchaser to verify that the product meets the criteria of 11.4 and 11.5. Thecost of these tests is negotiable be

38、tween the purchaser and the manufac-turer.11.5 Wet Acceptance Test:11.5.1 Specimen for TestWhen selected in accordancewith 8.3, the test specimen shall be at least 2.4 m (8 ft) long sothat when the rope is held in a vertical position, there will be1.5 m (5 ft) of rope free from knots, eyes, or splic

39、es (see Fig.1).11.5.2 Handling of SpecimenWhen the rope is handled, itshall always be outside the test footage (see Fig. 1).11.5.3 Electrodes:11.5.3.1 The electrodes shall be designed to shield out themajority of stray capacitive currents.11.5.3.2 The electrodes shall be similar to those specified i

40、nSpecification F711 for testing FRP rod and tube. Electricalcontact is made through washers that fit snugly around therope. The electrodes shall be mounted in a suitable frame toallow the suspension of the 305 mm (12 in.) test sectionbetween the electrodes. A 4.5 kg (10 lb) weight shall beattached t

41、o the rope to maintain good electrical contact. SeeFig. 3.11.5.4 Wetting of Specimen:11.5.4.1 A clean nonmetallic tank or trough shall be rinsedwith the same type water to be used during the wetting.11.5.4.2 The entire rope specimen shall be kept submergedhorizontally in test water at a depth of 305

42、 mm (1 ft) usingnonmetallic device(s) for a period of 15 min. There shall be nobends in this specimen.11.5.5 Water for WettingThe electrical resistivity of thewater used for wetting shall meet the requirements of IEEE-Standard 4, that is, 100 V m at ambient temperature 6 15C.The resistivity may be m

43、easured by using the test methods asdescribed in Test Methods D 1125.11.5.6 Drying of SpecimenWithin 1 min after removingspecimen from wetting tank, the specimen shall be hung in avertical position with an unrestrained weight of 4.5 kg (10 lb)attached and allowed to dry at as near standard atmospher

44、icconditions as practical, with rope attachment point and weightattachment point as described in Fig. 1. The specimen shall beallowed to dry for 15 min.11.5.7 Wet Leakage ReadingsThe 60 Hz voltage shall beraised from 1 to 50 kV rms in not less than 5 nor more than 15s. The voltage shall be held at 5

45、0 kV rms for 5 min. If at the endof 5 min the current is not stable or exceeds 100 A or flashesover, the specimen has failed.11.6 Mechanical/Physical Test Procedures:11.6.1 Specimen for TestThe specification for the testspecimen is provided in the details for each mechanical/physical test.11.6.2 Mas

46、s per Unit LengthThe procedure for determin-ing the mass per unit length shall be in accordance with TestMethods D 4268.Legend:Faraday Boxa shielded container (continuous copper screen, with a suitablemounting frame) enclosing and guarding the dropping resistor R1, and M (VM).Both the screen, and sh

47、ield of the measuring lead, by-pass R1 and M, by pro-viding a path for stray capacitive currents to ground.R1100 V, 50 W wire wound noninductive resistor. A minimum 50 W resistoris recommended because a hazardous condition would exist if the resistorshould burn open.Mbattery operated, true RMS, soli

48、d state voltmeter. Read drop across R1and calculate current I=ERFIG. 2 Electrical Test CircuitF 1701 05311.6.3 Diameter and CircumferenceThe method for de-termining the nominal circumference and diameter shall be inaccordance with Test Methods D 4268.11.6.4 Hardness:11.6.4.1 Hardness shall be no les

49、s than 3 lb. nor more than15 lb.11.6.4.2 Hardness shall be determined in accordance withCordage Institute test methods.11.6.5 Breaking StrengthThe method for determining thebreaking strength of the rope shall be in accordance with TestMethods D 4268.11.6.6 Elongation:11.6.6.1 Elongation shall be determined in accordance withTest Methods D 4268.11.6.6.2 This method covers the determination of elongationof new synthetic rope during its initial loading.11.6.7 Melt Point:11.6.7.1 An individual strand shall be placed on the plate ofthe melting