. The Bell System technical journal . been Obtained for Laboratory Examination BTL No. Location Depth Latitude Longitude Fathoms 110 approx. 81° 30 00N 24° 30 00W 5 approx. 111 approx 81° 30 00N 24° 30 00W 5 approx. 112 approx. 81° 30 00N 24° .30 00W 5 approx. 113 approx. 81° 30 00N 24° 30 00W 5 approx. 114 approx 81° 30 00N 24° 30 00W 5 approx. 135a 23° 45 00N 81° 57 30W 830 136 Several mil es south of Long Island, N. Y. Exact 1 ocation unknown. 90 137 40° 13 40N 71° 07 25W 90 163 48° 36 06N 36° 23 36W 2460 164 51° 53 42N 10° 37 18W 54 165 51° 40 42N 13° 02 12W 630 166 51° 55 21 N 11° 58 18W
. The Bell System technical journal . been Obtained for Laboratory Examination BTL No. Location Depth Latitude Longitude Fathoms 110 approx. 81° 30 00N 24° 30 00W 5 approx. 111 approx 81° 30 00N 24° 30 00W 5 approx. 112 approx. 81° 30 00N 24° .30 00W 5 approx. 113 approx. 81° 30 00N 24° 30 00W 5 approx. 114 approx 81° 30 00N 24° 30 00W 5 approx. 135a 23° 45 00N 81° 57 30W 830 136 Several mil es south of Long Island, N. Y. Exact 1 ocation unknown. 90 137 40° 13 40N 71° 07 25W 90 163 48° 36 06N 36° 23 36W 2460 164 51° 53 42N 10° 37 18W 54 165 51° 40 42N 13° 02 12W 630 166 51° 55 21 N 11° 58 18W 387 167 47° 52 24N 38° 23 12W 2460 168 47° 22 06N 42° 14 12W 2175 169 36° 41 46N 25° 38 09W 1180 195 45° 28 21N 60° 20 24W 106 196 46° 41 36N 56° 18 18W 37 197 47° 00 32N 56°5140W 100 200 44° 25 40N 63° 25 15W 46 212 45° 08 38N 54° 33 06W 82 281 43° 38 10N 55° 07 00W 2090 282 39° 17 24N 70° 12 15W 1450 283 53° 57 00N 165° 50 00W Unknown 1124 THE BELL SYSTEM TECHNICAL JOURNAL, SEPTEMBER 1957. Fig. 15 — Corrosion pockets in galvanized steel armor wires of submarine cableafter 12 years of service. Of special interest is a particular type of corrosion which has occurredin two separate cable samples — one from Alaskan waters, the otherfrom off the southern coast of Newfoundland. In one case the age of thecable was 12 years, and in the other 36 years. The Alaskan sample waslocated in an area characterized by water velocities of 5 to 9 knots. Inboth instances, the outer jute and most of the flooding compound was |gone. Corrosion, instead of starting and progressing on the outer sur- ■face of the wires, had started, and been confined largely to the sides of ,the wires. Usually there are corresponding areas of corrosion on two !adjacent wires to form corrosion pockets. These pockets are illustratedin Fig. 15. In the case of the 12 year old cable, corrosion caused failureof the armor wires. In the case of the cable which was in service 36
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Keywords: ., bookcentury1900, bookdecade1920, booksubjecttechnology, bookyear1
