IEEE C135 31-1988 en Zinc-Coated Ferrous Single and Double Upset Spool Insulator Bolts for Overhead Line Construction.pdf
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IEEE C135 31-1988 en Zinc-Coated Ferrous Single and Double Upset Spool Insulator Bolts for Overhead Line Construction.pdf
1、ANSI C135.31 88 E 0724150 0504978 3TT = ANSI C135.31-1988 American National Standard 1 for zinc-coated ferrous single and double upset spool insulator bolts for overhead line construction ( Approved March 2,1988 Secretariat: National Ele for example, a = f1164“. A double-letter superscript indicates
2、 that the plus value is that of the first letter and the minus value is that of the second letter; for example, ax = +1/64“, -0. Figure 1 - Single and double upset spool insulator bolts ANSI C135.31-1988 ANSI CL35.31 88 m 0724350 0504983 994 m Type of insulator bolt Page 4 of 4 pages Min. load at te
3、n Lever arm degrees deflection APPROX. 2“ DIA. STEEL THIMBLE STEEL BLOCK 1. _-_-_ - 10 DEGREES INSIDE FACE OF THIMBLE BEVELED TO AVOID BINDING NOTES 1 Application of load must coincide with center line of testing machine. 2 Angle of deflection shall be determined by the intersection of the center li
4、ne axis of the bolt in its initial position, with a line drawn through the center points of the bolt at the deflected position and the upset shoul- der nearest mounting support. Single upset bolt 1 518“ Double upset bolt 1900 Ibs. 800 Ibs. I I I I Figure 2 - Single and double upset spools insulator bolts ANSI C135.31-1988
