ANSI C135.22-1988 American National Standard for Zinc-Coated Ferrous Pole-Top Insulator Pins With Lead Threads for Overhead Line Construction.pdf
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1、ANSI C135.22-1988 1 American National Standard I for zinc-coated ferrous pole-top insulator pins with lead threads for overhead line construction ( Approved March 2, 1988 Secretariat: National Electrical Manufacturers Association- 1 Scope and application 1.1 Scope This standard covers ferrous pole-t
2、op insulator pins with 1 -inch- and 1 -3/8-inch-diameter lead threads used in overhead line construction. 1.2 Application Pins conforming to this standard shall, in all respects, meet the dimensional and perfor- mance requirements hereinafter stated. The text, specifications or standards references,
3、 and associated figures supplement each other and shall be considered as parts of this stan- dard. 8 a 2 7 k N rri m _. G - v) z a 2 Normative references The following standard contains provisions which, through reference in this text, constitute provisions of this American National Standard. Page 1
4、 of 4 pages At the time of publication, the edition indicated was valid. All standards are subject to revision, and parties to agreements based on this American National Standard are encouraged to investigate the possibility of applying the most recent edition of the standard indicated below. ANSI/A
5、STM-A-153-82. Standard specifica- tion for zinc coating (hot dip) on iron and steel hardware. ) 3 Material 3.1 pins: Pins shall be made from one of the following materials: hot-rolled steel that has been produced by lhe open-hearth, basic-oxy- gen or electric-furnace process or malleable or ductile
6、ferrous castings. These materials shall be of a grade and qualfty suitable to meet the strength and performance requirements of this standard. ) This standard has been administratively withdrawn. Contact the Secretariat for more recent information. An American National Standard implies a consensus o
7、f those substantially concerned with its scope and provisions. An American National Standard is intended as a guide to aid the manufacturer, the consumer, and the general public. The existence of an American National Standard does not in any respect preclude anyone, whether he has approved the stand
8、ard or not, from manufac- turing, marketing, purchasing, or using products, processes, or procedures not conforming to the standard. American National Standards are subject to periodic review and users are cautioned to obtain the latest editions. The American National Standards Institute does not de
9、velop standards and will in no circumstances give an interpretation of any American National Standard. Moreover, no person shall have the right or authority to issue an interpretation of an American National Standard in the name of the American National Standards Institute. CAUTION NOTICE: This Amer
10、ican National Standard may be revised or withdrawn at any time. The procedures of the American National Standards Institute require that action be taken to reaffirm, revise, or withdraw this standard no later than five years from the date of approval. Purchasers of American National Standards may re
11、ceive current information on all standards by calling or writing the American National Standards Institute. -m . . e . Copyright 0 1992 by m N ; H American National Standards Institute, 11 West 42nd Street, New York, N.Y. 10036 ANS12C992/15 Authorized licensed use limited to: Tsinghua University Lib
12、rary. Downloaded on December 25,2010 at 10:34:13 UTC from IEEE Xplore. Restrictions apply. Page 2 of 4 pages 3.2 lead threads: Lead threads shall be made of a lead alloy of a grade and quality suitable to meet the strength and performance requirements of this standard. inch-pounds, the lead thread s
13、hall withstand a minimum load of 3000 pounds in tension with- out stripping or pulling off the pin. The load shall be applied to the thimble while the pin is restrained by the shank. 4 Dimensions 6 Corrosion protection 4.1 Dimensions of pins shall be in accordance with figure 1. 4.2 Dimensions of le
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