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REPORT Of CABLE SHSATHUn TASK 7RCUF* A. A. Smith, Jr. Manager, Central Research Laboratories American Smelting and Refining Co. Chairman, L.I.A. Cable Sheathing Task `Troup of the Technical Steering Committee In June, 195$, & coccittee consisting of A. A. Smith, Jr. - American Smeltin' & Refining Co. *1. M. Bolton ---- Bell Telephone Laboratories X. T. Isbell------ St. Joseph Lead Co. C. J. Snyder------ Anaconda Tire & Cable Co. R, J. Wiseman----- The (Aconite Co. was appointed by the Technical Steering Committee of the Lead Industries Associa tion to study the use of lead In cable sheathin' and to make suggestions as to possible improvements that could be made either In the alloys used or manufacturing methods. Later Ur. E. J. Merrell of Phelps Dodge Copper Products Corp was added to the Coccittee. Three meetings of the Committee have been held, and the tentative conclusions reached were, 1. that the power cable Industry would like to see a better alloy than is currently being used, whether it be for continuous or intermittent extrusion, and /" j 2, that both the power and connunications cable Industries would be interested in lead alloys with comparable propterties to those they are now using on intermittent extrusion for continuous extrusion. After considerable discussions it was felt that the development of a new alloy with greatly improved properties offered small chance of success considering the large amount of work that has been done over a period of many years. However, this possibility should not be entirely overlooked, and tho Committee .All keep it in mind. It was suggested that a co-operative research program on continuous extrusion be considered with Pirelli-Hilan and Lead Industries Association contact them with regard to power cable sheathing and to go as far as to offer them sufficient copper bearing and arsenical lead alleys for their experimental work. Hr. Bouton offered to contact them Independently with respect to 1? antlacnlal lead ccsmunicatioos cable sheathing alloy. Presented at the 20th Annual Meeting, Lead Industries Association, April 214-25, 1956, St. Louis, Mo, " ' _ .... . , _ ','.7 JjwfiP IMIJR k1'',1 IWU'.isu ` ----- !*gy5^g^*^^y^w?g,gr^ *-J420943 .1at*:-, Jr#*,.' ,* 04:k.t->' v-. Catlo Sho&thinc Task Croup -2- Cossmmicotions with Pirolli-Milan Indicated that they h*vo had roasonablo suc cess with laboratory extrusion of 1< nntimonial load alloy and hopo to run a ecomorclal teat in tho near future# They also hopo to do sooo laboratory work on the arsenical load alloys*A Vr, Morrison, chiof engineer of tho John Robertson Co., joinod ono of the mootings of tho Coanittoo, and bo stated it was his boliof that load alloys could be extruded on continuous machines but certain modifications wero necossary for each alloy* It is Xolt by tho Committee that the problem of continuously extruding lesd alloys can only bo solrod on a eonoorcial basis] and, of course, this may involve rather large oxpondituros. The Cocnitteo will givo further considoration to tho subject to soo if a program can bo developed which will giro tho answers with mini mum cost* A ? '7~,"