1、IEEE Std 1070-2006(Revision of IEEE 1070-1995)IEEE Guide for the Design and Testingof Transmission Modular RestorationStructure ComponentsI E E E3 Park Avenue New York, NY10016-5997, USA8 December 2006IEEE Power Engineering SocietySponsored by theTransmission and Distribution CommitteeRecognized as
2、anAmerican National Standard (ANSI)IEEE Std 1070-2006(R2012)(Revision ofIEEE Std 1070-1995)IEEE Guide for the Design and Testingof Transmission Modular RestorationStructure ComponentsSponsor Transmission and Distribution Committeeof theIEEE Power Engineering SocietyApproved 18 October 2006American N
3、ational Standards InstituteApproved 8 June 2006Reaffirmed 29 March 2012IEEE SA-Standards BoardThe Institute of Electrical and Electronics Engineers, Inc.3 Park Avenue, New York, NY 10016-5997, USACopyright 2006 by the Institute of Electrical and Electronics Engineers, Inc.All rights reserved. Publis
4、hed 8 December 2006. Printed in the United States of America.IEEE is a registered trademark in the U.S. Patent +1 978 750 8400. Permission to photocopy portions of any individual standard for educational classroom use can also be obtained through the Copyright Clearance Center. iv Copyright 2006 IEE
5、E. All rights reserved. Introduction This introduction is not part of IEEE Std 1070-2006, IEEE Guide for the Design and Testing of Transmission Modular Restoration Structure Components. In the past years, most of the utilities in North America have joined together through mutual aid programs to help
6、 one another in case of emergencies. As part of the mutual aid for transmission, a modular restoration structure was developed and is now being used by several utilities worldwide. The versatility of this structure and its contribution to the utility industry prompted the preparation of this guide.
7、This guide is generic in its design so that any utility desiring to use the modular concept as part of a mutual aid plan can do so. Structures built to this design would then be compatible with the structures of another company using the same concept. This feature affords many positive results in th
8、at savings are realized in crew training, crew readiness for emergencies, and total investment of emergency structures (i.e., fewer structures because structures could be loaned from mutual aid participants). Of course, this modular concept is not limited to any particular application. Numerous requ
9、ests for a generic design of a modular structure were received from throughout the industry. The Subcommittee on the Engineering in the Safety, Maintenance and Operation of Lines (ESMOL), part of the Transmission and Distribution (T see Figure 1 (A and B). 3.2 Design considerations7The 610 mm 610 mm
10、 lattice column was designed with aluminum diagonal angles to a compressive load of 334 kN at a column height of 25.6 m. The basic column section is 6.4 m with other column heights of 4.27 m and 2.13 m. These combinations allow considerable flexibility in building structures for most standard transm
11、ission voltages. These three lengths maintain the same diagonal spacing for ease of climbing. The entire column assembly is welded for consistency, strength and to eliminate the loss of bolted members. The column end plates have guide pins and mating holes for ease in assembly. The assembly hole pat
12、tern on the end plates has the same spacing throughout, and it meshes with all other components. A 4 in channel is placed next to the end plates to create a stacking slot. A hole is centered in the column end plates and can be used for a load line through the center section of the columns. The found
13、ation base has the same assembly hole pattern as the columns. Handholds (lifting rings) are provided, and large holes conveniently spaced are for stabilizing bars, which can be driven into the ground or bolted to a crib of crossarms or cross ties. The guy plates fit between the column sections to se
14、rve as guy wire and insulator attachment points. The assembly bolts are long enough to connect two column end plates and three guy plates, as required. The three holes in the guy plates are to accommodate spread or straight guys. If a temporary guy is necessary, the permanent guys can be installed w
15、ithout affecting the temporary guy. The box section is available to support horizontal post insulators, provide vertical spacing for bundle conductors and attachment points high strength guy plates, if required. The box section has the same assembly hole pattern and can be used between column sectio
16、ns and guy plates or above the foundation to help level a structure. The gimbal is 2.13 m high and meshes with the foundation and column end plates. According to its intended use, the gimbal can remain a pivot, or it can be connected in a rigid manner with stays. Combinations of these parts can make
17、 a variety of structures, as shown in Goodreid and Magwood B6, Grose B7, and Van Name, et al. B13. 6Information on references can be found in Clause 2. 7See Cole B3. IEEE Std 1070-2006 IEEE Guide for the Design and Testing of Transmission Modular Restoration Structure Components 4 Copyright 2006 IEE
18、E. All rights reserved. NOTE 1All dimensions are in millimeters unless otherwise noted.8NOTE 2Structure fabrication should conform to Clause 3. NOTE 3Each section to be supplied with ten bolts, nuts, and lock washers in accordance with 3.1. NOTE 4The 25 guide pins should be on opposite corners NOTE
19、5Affix eight stainless steel washers to the eight 18 holes on each tower end plate as shown. Figure 1 AColumn section design tolerance 8Notes in text, tables, and figures are given for information only, and do not contain requirements needed to implement the guide. IEEE Std 1070-2006 IEEE Guide for
20、the Design and Testing of Transmission Modular Restoration Structure Components 5 Copyright 2006 IEEE. All rights reserved. NOTE 1Structure fabrication should conform to Clause 3. NOTE 2Each section to be supplied with ten bolts, nuts, and lock washers in accordance with 3.1. NOTE 3The 25 guide pins
21、 should be on opposite corners. Figure 1 BColumn section design and tolerance 3.2.1 Column design and tolerance For column sections, all manufacturing tolerances and basic design should be as specified in Figure 1. The number of diagonals required for each tower section should be as specified in Fig
22、ure 1. The diagonals should be positioned on the tower with all flanges located in the same direction, as shown in Figure 1, to facilitate tower climbing. 3.2.2 End plate design and tolerance For end plates, all manufacturing tolerances and basic design should be as specified in Figure 1. The perpen
23、dicularity tolerance should be a maximum deviation of 3.17 mm over a 610 mm distance. 3.2.3 Guy plate design and tolerance For guy plates, basic design and all manufacturing tolerances should be as specified in Figure 2. IEEE Std 1070-2006 IEEE Guide for the Design and Testing of Transmission Modula
24、r Restoration Structure Components 6 Copyright 2006 IEEE. All rights reserved. 3.2.4 Gimbal design and tolerance For gimbals, basic design and all manufacturing tolerances should be as specified in Figure 3. 3.2.5 Foundation base design and tolerance For foundation bases, basic design and all manufa
25、cturing tolerances should be as specified in Figure 4. 3.2.6 Box section design and tolerance For box sections, basic design and all manufacturing tolerances should be as specified in Figure 5. 3.2.7 Workmanship All work should be performed using the best modern practices of the industry. Material s
26、hould be as specified in 3.1 (new and free of defects or irregularities). All components of the same design and designation should be identical; like components should be interchangeable. All corners should be rounded and sharp edges should be broken. 3.3 Fabrication Fabrication should not begin unt
27、il the purchaser has approved drawings. The best modern practices should be used in the manufacture and fabrication of the types of materials covered in this guide. 3.3.1 Bending All bending should maintain sufficient thickness of material in order to provide full strength without impairing the mate
28、rial. 3.3.2 Cutting Cutting of plates and structural shapes should be guided by electrical or mechanical means to assure a neat, accurate cut. Cuts should be clean and free from sharp edges. 3.3.3 Drilling and milling All load-bearing holes should be drilled, and all slots should be milled in all ma
29、terial thicknesses. Punching of holes or slots is not recommended. 3.3.4 Welding procedures Welding procedures should be in accordance with American Welding Societys Aluminum Structural Welding Code. All welds should completely seal. There should be no voids or seams between joining surfaces into wh
30、ich fluids may enter. Welders and welding operators should be qualified in accordance with ANSI/AWS D1.2. IEEE Std 1070-2006 IEEE Guide for the Design and Testing of Transmission Modular Restoration Structure Components 7 Copyright 2006 IEEE. All rights reserved. NOTE 1All dimensions are in millimet
31、ers unless otherwise noted. NOTE 2Holes on plates 1, 2 and 3 should be interchangeable with holes on towers, foundation base, and box section as shown in Figure 1, Figure 4, and Figure 5. Figure 2 Guy plate design and tolerance IEEE Std 1070-2006 IEEE Guide for the Design and Testing of Transmission
32、 Modular Restoration Structure Components 8 Copyright 2006 IEEE. All rights reserved. NOTE 1All dimensions are in millimeters unless otherwise noted. NOTE 2Holes on gimbal section top and bottom flange should be interchangeable with holes on towers, foundation base, and box section as shown in Figur
33、e 1, Figure 4, and Figure 5. NOTE 3The gimbal section should be designed to be locked rigidly parallel to the two axes for ease of storage and transportation. When unlocked, the top section of the gimbal should be able to rotate as follows: a. 90about the Y-axis (see detail A) b. 90about the X-axis
34、(see detail B) c. 360about the Z-axis (see detail C) d. 45about the XY-axis (see detail D) NOTE 4When unlocked, all three axes of the gimbal should be mechanically held together so that any rotations, or combination of rotations as described in Note 2, should not cause the top and base sections to s
35、eparate. NOTE 5When unlocked, the gimbal should be designed to allow disconnecting the top section from the bottom section. NOTE 6The X-axis and Y-axis should be a maximum of 483 mm above the flange of the base section and should be at least 127 mm above the flange of the base section. NOTE 7Each gi
36、mbal section to be supplied with ten bolts, nuts, and lock washers in accordance with 3.1. Figure 3 Gimbal design and tolerance IEEE Std 1070-2006 IEEE Guide for the Design and Testing of Transmission Modular Restoration Structure Components 9 Copyright 2006 IEEE. All rights reserved. NOTEHoles on b
37、ase flange should be interchangeable with holes on towers, gimbals, and box sections as shown on Figure 1, Figure 3, and Figure 5. Figure 4 Foundation base design and tolerance IEEE Std 1070-2006 IEEE Guide for the Design and Testing of Transmission Modular Restoration Structure Components 10 Copyri
38、ght 2006 IEEE. All rights reserved. NOTEHoles on box section top and bottom flange should be interchangeable with holes on towers, gimbals, and foundation bases as shown on Figure 1, Figure 3, and Figure 4. Figure 5 Box section design and tolerance IEEE Std 1070-2006 IEEE Guide for the Design and Te
39、sting of Transmission Modular Restoration Structure Components 11 Copyright 2006 IEEE. All rights reserved. 4. Test requirements 4.1 Strength test verification The first production units of 6.4 m column sections, guy plates, and box sections should be tested by the manufacturer as specified in 4.1.1
40、 through 4.2.3 and as illustrated in Figure 6 through Figure 16. A detailed test report should be submitted. Elastic and permanent deformation of each component should be measured to 0.025 mm, at load intervals of 50%, 75%, 90%, and 100% of the maximum test load and recorded in the test report. All
41、test loads should be held for 5 min before measurements are taken. If the manufacturer has previously tested the same design, in accordance with these or equivalent requirements, and manufactured the same assemblies listed below, the results of those tests may be submitted in lieu of performing new
42、tests. 4.1.1 Compression of the columns A 6.4 m column should be tested to 290 kN, with compression applied at the center axis (see Figure 6). Maximum permanent deformation should be less than 0.508 mm. Figure 6 Compressive load test 4.1.2 Bending of columns Using production bolts and nuts, a 6.4 m
43、column section should be bolted to a suitable test structure on one end of the column. A cantilever load of 11.34 kN should then be applied at the center axis of the opposite end without failure (see Figure 7). Maximum permanent deformation should be less than 2.032 mm. Figure 7 Cantilever load test
44、 IEEE Std 1070-2006 IEEE Guide for the Design and Testing of Transmission Modular Restoration Structure Components 12 Copyright 2006 IEEE. All rights reserved. 4.1.3 Torsion strength A 6.4 m column section should be tested as in 4.1.2 except that an 8 kN load should be applied at the cantilevered en
45、d at a point 0.457 m from the center axis of the column without failure (see Figure 8). Maximum permanent rotational deformation of the column should be less than 0.5. Figure 8 Torsional load test 4.1.4 Combined bending and compression test A 6.4 m column section should be loaded to 445 kN compressi
46、on and 22.2 kN cantilever load simultaneously. The loads, elastic and permanent deflections, should be measured and recorded (see Figure 9). Maximum permanent deformation should be less than 0.508 mm in compression and 2.54 mm in bending. Figure 9 Compressive and cantilever load test 4.1.5 Ultimate
47、strength bendingbolts Using production bolts and nuts, a 6.4 m column section should be bolted to a suitable test structure on one end of the column (identical to Figure 7 except with the loads specified in the following sentences in this paragraph). A load should be applied at a rate not to exceed
48、8.9 kN/min. The combined assembly of column, bolts, and nuts should have an ultimate strength greater than an equivalent moment of 190 000 Nm. The first component to fail should be the bolt and nut assemblies. The welded column should not be the first to fail; however, secondary failure of the welds
49、 after a bolt failure is permissible. 4.1.6 Ultimate strength bendingwelds Using extra high strength bolts and nuts, a 6.4 m column section should be bolted to a suitable test structure on one end of the column (identical to Figure 7 except with the loads specified in the following sentences in this paragraph). Four tests should be performed by rotating the column. A load should be applied at a rate not to exceed 8.9 kN/min unless failure occurs. In no case should the column have an ultimate strength less than an e
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