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Show New phone cable fo withstand most disasters A $200 million blast-resistant cable route that adds 9,000 telephone tel-ephone circuits to the 15,000 now spanning the country was opened for service December 2, by the Bell Telephone System. Sys-tem. The 4,000-mile transcontinental transcontinen-tal cable was built by the Bel) System to withstand natural distasters including nuclear blasts short of a direct hit. It can take an overall pressure of more than 100 .pounds a square inch. An overall pressure pres-sure of one-half pound per square inch could crush the average home. All communications communica-tions equipment associated with the cable is shockmounted in underground concrete buildings. The cable itself is four to five feet underground. The cable runs from New York to California, skirting all major cities and potential target areas. |