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1、J I S GX3537 94 4933608 0523845 667 M . JIS 1 UDC 669.1 4-427:669.14.056.9:669.586.5 JAPANESE INDUSTRIAL STANDARD Zinc-coated steel wire strands JIS G 3 5 3 7 - 1 9 9 4 Translated and Published bY Japanese Standards Association Printed in Japan Copyright Japanese Standards Association Provided by IH
2、S under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 08:20:10 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S G*3537 94 4733608 05238Llb 5T3 = In the event of any doubt arising, the original Standard in Japanese is to
3、 be final authority. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 08:20:10 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S G*3537 74 4733608 0523847 43T T
4、ype No. No. 1 No. 2 (a) No. 2 (b) No. 3 (a) UDC 669. 14-427: 669. 14. 056. 9: 669. 586. 5 No. 3 (b) JAPANESE INDUSTRIAL STANDARD J I S Zinc-coated steel wire strands G 3537-1994 Constitution 1 . Scope This Japanese Industrial Standard specifies the zinc-coated steel wire strands (hereafter referred
5、to as “steel wire strand“) used for overhead ground wires, buried ground wires, messenger wires, supporting cables for electric power lines and electric communication lines and for similar purposes. I 3-wire 7-wire 19-wire I I Remarks: The following standards are cited in this Standard: JIS G 3505 L
6、ow carbon steel wire rods JIS G 3506 High carbon steel wire rods JIS H 0401 Methods of test for hot dip galvanized coatings JIS 2 2201 Test pieces for tensile test for metallic materials JIS Z 2241 Method of tensile test for metallic materials 2. Definitions definitions apply: For the main terms use
7、d in this Standard, the following (i) wire Is a material constituting steel wire strand which is the wire provided wherein wire rods specified in JIS G 3505 and JIS G 3506 are heat treated, cold worked and zinc-coated. intertwisted to a specific thickness. (2) zinc-coated steel wire strand Is provid
8、ed wherein a plurality of wires are 3. Grade and symbol 3.1 Classification by constitution into 3 types, Nos. 1 to 3 inclusive, in accordance with the constitution as shown in Table 1, and further, Types Nos. 2 and 3 shall be subclassified into 2 catego- ries, (a) and (b), according to the existence
9、 of joint of wire after the final cold working process. The steel wire strand shall be classified Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 08:20:10 MDTNo reproduction or networking p
10、ermitted without license from IHS -,-,- JIS GL3537 94 4933608 0523848 376 = Grade 2 G 3537-1994 Grade 1 Grade 2 Grade 3 3 . 2 The standard constitution (number of constituent wiredpreferred wire diameter) shall comply with Attached Table 1. Standard constitution (number of constituent wiredpreferred
11、 wire diameter) Class 3.3 The steel wire strands shall be classified according to the standard tensile strength of wire into Grades 1 to 3 inclusive as given in Table 2. Classification by standard tensile strength of wire Super A A B Table 2 . Classification by standard tensile strength of wire Unit
12、: N/mm2 Specially heavy coating I Heavy coating I Mass of zinc coating Light coating Standard tensile strength I 1230 I 880 1 690 of wire 3.4 shall be classified according to the mass of zinc coating on the wire into three classes, super A, A and B, as shown in Table 3. Classification according to m
13、ass of zinc coating The steel wire strands Table 3. Classification according to mass of zinc coating 4 . Mechanical properties 4 . 1 be tested in accordance with 10.2 and shall conform to Attached Table 1. Tensile load of steel wire strand Tensile load of steel wire strand shall 4.2 shall be tested
14、in accordance with 10.4 and shall conform to Attached Table 2 . Tensile load and elongation of wire Tensile load and elongation of wire 4 . 3 Torsion characteristic of wire tested in accordance with 10.5 and its number of torsion turns shall conform to Attached Table 2. However, the torsion characte
15、ristic is not specified for Grade 3. Torsion characteristic of wire shall be 5 . Characteristics of zinc coating 5.1 tested in accordance with 10.6 and conform to Attached Table 2. Mass of zinc coating of wire Mass of zinc coating of the wire shall be 5.2 Windability of wire with 10.7, and there sha
16、ll be no remarkable crack or flaking on the part wound six turns closely around the cylinder. Windability of wire shall be tested in accordance Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/20
17、07 08:20:10 MDTNo reproduction or networking permitted without license from IHS -,-,- JIS G*353 94 4933608 0523849 202 W Type No. No. 1 3 G 3537-1994 Length of lay 30 k 5 times preferred wire diameter 6. Shape, dimensions and tolerances The shape, dimensions and tolerances thereon shall be as follow
18、s: The length of lay of the steel wire strand shall be tested in accordance with 10.3 and shall conform to Table 4. The length of one steel wire strand shall be 200 m, 500 m or 1000 m, as a rule. The tolerance on length of one steel wire strand shall be and -t 3 %.for others. The preferred wire diam
19、eter of the wire constituting the steel wire strand and its tolerance shall comply with Attached Table 2. + 6 o % for cable use, Table 4. Length of lay No. 2 (a), (b) I 40 f 5 times preferred wire diameter No. 3 (a), (b) I 70 f 10 times preferred wire diameter Surface condition The surface condition
20、 of steel wire strand shall be as follows: (i) (2) The surface of wire shall be smooth and free from such defects as rust, flaw, fissure, and others that are detrimental to practical use. The steel wire strand shall be of such formation that the wires are twisted together tightly, concentrically and
21、 uniformly throughout the whole length. 8. Material JIS G 3505 and JIS G 3506. The steel wire strand shall be made from the rods specified in 9. Method of manufacture shall be as follows: The method of manufacture of steel wire strand (i) The wires to form the steel wire strands shall be cold-worked
22、 after heat treatment and shall be zinc-coated uniformly. The coating of zinc shall be hot-dipped or electrolytic zinc-coated process. The steel wire strand shall be twisted so that the diameter, stiffness of twisting, length of lay, etc. will be uniform throughout the whole length. Unless otherwise
23、 particularly specified, the strand shall be so twisted that it may not loosen when it is cut off. The twisting direction of the steel wire strand is expressed by that of the outermost wire lay, and unless otherwise specified, shall be the “S“ direc- tion, and that of the inner layer of 1 x 19 stran
24、d shall be “Z“ direction as shown in Fig. 1. (2) (3) Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 08:20:10 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S
25、 G*3537 94 4933608 0523850 T24 = Nos. 1, 2 (a) and 3 (a) NOS. 2 (b) and 3 (b) 4 G 3537-1994 No joint is allowed, except the joint by upset butt welding before the cold working process. Not more than one upset butt welding or splicing after zinc-coated for each 50 m length of steel wire strand is all
26、owed. Here, the weld zone shall be zinc-coated sufficiently. Fig. 1. Direction of twist “S“ direction “Z“ direction (4) The wires constituting the steel wire strand shall be joined together as shown in Table 5. (5) Unless otherwise particularly specified, the steel wire strand shall be coated with s
27、uitable anticorrosive oil as necessary for preservation. Table 5 . Joining of wires Type No. I Joining 10. Tests 10.1 Sampling of test piece 10.1.1 Sampling of test piece for steel wire strand test and lay length test shall be taken from a twisted up coil. purchaser and the supplier. Test pieces for
28、 tensile The number of test pieces shall be determined as agreed upon between the 10.1.2 test, test for mass of zinc coating, windability test, and measurement of wire diameter shall be taken from the wire after stranding. However, when the test piece is required to be corrected for bend, the correc
29、tion shall be carefully carried out by a suitable method lest the test piece should be injured without heating. The number of test pieces shall be determined as agreed upon between the purchaser and the supplier. Sampling of test piece for wire Test pieces for tensile test, torsion 10.2 fixed to the
30、 grips of a testing machine by suitable means, and pulled the test piece gradually until it breaks to read the tensile load at that instance. The distance between the grips shall be not less than 40 times the calculated outside diameter of the steel wire strand. Tensile test of steel wire strand The
31、 both ends of a test piece shall be I I 5 Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 08:20:10 MDTNo reproduction or networking permitted without license from IHS -,-,- JIS G*3537 94 47
32、33608 0523851 960 W 5 G 3537-1994 In this test, if the test piece breaks at the gripping portion before the specified tensile load is achieved, the test shall be considered invalid and a retest shall be made on the additional test pieces sampled again. 10.3 strand stretched straight on a suitable sh
33、eet of paper and measure the length of Measurement of length of lay Sketch the profile of the steel wire Tensile test of wire The tensile test of a wire shall be as follows: No, 9B test piece specified in JIS Z 2201 shall be used as the test piece. The test method shall be in accordance with JIS Z 2
34、241. If the test piece breaks outside +the gauge length from the center of the gauge marks in the tensile test and the results do not meet the require- ments, the test shall be considered invalid and a retest shall be made on the additional test pieces of 10.1.2 sampled from the same coil. Torsion t
35、est of wire The torsion test of a wire shall be as follows: A torsion test piece shall have a length capable of obtaining a distance between the grips of 100 times the preferred wire diameter. For the test method, grip the test piece firmly at both ends of the test piece for the distance of 100 time
36、s the preferred wire diameter. Turn its one side until it is ruptured while it is stretched not to be bent. If the test is carried out with grip distance other than the specified distance, the number of twisting turns shall be increased or decreased proportionally to the grip distance and converted
37、to the number of twisting turns in case of 100 times the preferred wire diameter. When the test piece is ruptured at the grip portion and the results do not conform to the specified requirements, the test shall be made invalid and further the test piece is taken from the same coil to carry out the t
38、est again. Test for mass of zinc coating of wire The test for mass of zinc coating of a wire shall be carried out in accordance with 3.2 of JIS H 0401. 10.7 carried out in accordance with 5.4 of JIS H 0401. Thought the diameter of a Test for windability of wire The test for windability of a wire sha
39、ll be cylinder used for the windability test is made 15 times the preferred wire diameter, when especially requested from the user, it may be determined as agreed upon between the purchaser and the supplier. The number of winding turns shall be 6. 10.8 a wire, the maximum and minimum diameters on th
40、e same section at any Measurement for diameter of wire For measurement of the diameter of position shall be measured. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 08:20:10 MDTNo reproduc
41、tion or networking permitted without license from IHS -,-,- JIS G*3537 94 M 4933b08 0523852 BT7 M 6 G 3537-1994 11. Inspection The inspection shall be as follows: (i) (2) (3) (4) The mechanical properties shall conform to the requirements specified in 4 . The zinc coating characteristics shall confo
42、rm to the requirements specified in 5. The shape and dimensions shall conform to the requirements specified in 6. The surface condition shall conform to the requirements specified in 7 . 12. Designation of product wire diameter, symbol for constitution, grade, and class. A product shall be designate
43、d by name, preferred Example Zinc-coated steel wire strand 3.5 mm 1 x 7 (a) grade 1 class A For zinc-coated steel wire strand of grade 1 class A, 3.5 mm preferred wire diameter, and 1 x 7 (a) in symbol for constitution 13. Marking clearly be marked with the following items by suitable means. However
44、, a part of them may be omitted when approved by the purchaser. Each steel wire strand that has passed the inspection shall Name Preferred wire diameter Symbol for constitution Grade Class Length Manufacturers name or identifying brand Year and month of manufacture or its abbreviation 14. Report him
45、 a data sheet containing the dimensions and length of steel wire strand, results of tensile test of the strand and those of the wire test. If requested by the purchaser, the manufacturer shall submit to 4 Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Emp
46、loyees/1111111001, User=Wing, Bernie Not for Resale, 03/12/2007 08:20:10 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S G*3537 94 4933608 0523853 733 7 G 3537-1994 Attached Table 1. Number of constituent wiredpreferred wire diameter, calculated outside diameter and c
47、ross-sectional area, and tensile load of steel wire strand Type No. Vo. of con- ;tituent Mires1 referred wire dia. Number/ mm Calculated outside diameter of strand mm Calculated cross- sectional area of strand mm2 lensile load of steel wire strand kN :informative reference) Standard mass kgkm Grade
48、1 Grade 2 Grade 3 312.90 3/3.20 313.50 314.00 314.30 314.50 22.4 min. 27.4 min. 32.5 min. 42.5 min. 49.2 min. 53.8 min. No. 1 6.2 6.9 7.5 8.6 9.3 9.7 19.8 24.1 28.9 37.7 43.6 47.7 12.6 min. 15.2 min. 18.2 min. 23.8 min. 27.7 min. 30.0 min. 156 190 228 297 344 376 16.1 min. 19.6 min. 23.4 min. 30.6 min. 35.5 min. 38.7 min. No. 2 711.00 711.20 711.40 711.60 711.80 712.00 712.30 712.60 712.90 713.20 713.50 713.80 714.00 714.30 714.50 715.00 3.0 3.6 4.2 4.8 5.4 6.0 6.9 7.8 8.7 9.6 10.5 11.4 12.0 12.9 13.5 15.0 5.50 7.92