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Standards for Insulating links
ANSI/CPLSO-14
ANSI/UL2737 (Withdrawn)
ASTM F2973
MIL-L-24410 (Withdrawn)
Tests by Independent Organizations
Load Insulator
Miller & Hirtzer
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As a first step you would be advised to buy try www.ihs.com : Institute of Electrical and Electronics Engineers [1995] IEEE standard techniques for high-voltage testing IEEE Std 4. 345 E 47 St. NY 100017 Institute of Electrical and Electronics Engineers [1997] National electrical safety code ISBN 1-55937-715-1. 345 E 47 St. NY 100017 ANSI C29.1 Test methods for Electrical Power Insulators ANSI C 29.11 For Composite Suspension Insulators Overhead Transmission Line Tests ANSI C29.12 For Insulator Composite Type You will find CPLSO C:14 is almost identical to C29.12. All documents are passed through membership prior to publication. A National Standard must be based upon experts work not just manufacturers. Back ground to testing protocols Insulating devices have been in existence for over 50 years, the earliest patent granted in 1959. Between 1970 and 1980 there was a substantial amount of work to test, and define, insulating devices. These tests were performed at the AB Chance and Ontario Hydro facilities on behalf of the companies such as Grove, National Crane, RO and FMC Corporation. This work was done by industry experts using IEEE tests such as: Dr. J. D. Morgan - New Mexico State University Dr. J. Kuffel - Ontario Hydro Research division Mr. C. G. Maurice - Ontario Hydro Research division Dr. T.C. Cheng – University of Southern California Dr. G.Whitehouse Dr. H. B. Hamilton Dr. J. Fagan - Oklahoma State University Morgan's protocols were text book tests already in existence IEEE Std4 page 79. He chose an elegant way to determine salinity from saline deposits from an actual crane of only 2 siemens per m. (Please note some insulators are contaminated tested at 16 siemens per m!) Morgan's documents are court testimony, crane magazine article and various tests mentioned below which are all in the public domain. In the late 1990’s a new draft standard, more mechanically demanding and complete than the earlier work, was circulated for comment in the crane industry called the Standard Insulating Link Tests - 2000, SILT 2000, by Load Monitor (UK) Ltd. In addition the following experts have been acknowledged as helping in the process o f defining critical SILT 2000 test values. Prof. T. Davies - University of Southampton Dr. P. Aplin – University of Bristol G. Hearn - Wolfson Electrostatics - University of Southampton P. Stanton – British Short-Circuit Testing Station This SILT 2000 standard was also presented to the following committees o r conferences: Pa ge 2 of 3 Messa ge 09/11/2011
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