The Thumpphone I is designed as an aid to locating and pinpointing the thump or discharge at a cable fault caused by capacitive discharge impulse fault locators (thumpers). Applications include locating and pinpointing a cable fault that cannot be found and pinpointed easily by personnel walking and listening along the cable for the thump. Such cases may occur with faults under city streets, in locations where the ambient noise is great, in cable buried in plastic pipe, and very deeply buried faults.
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