Trace cable, locate faults with one instrument
- Florida Power Light Company, Juno Beach, FL (United States)
One of the problems with cable-tracing instruments that use radio-frequency (RF) signals is that they tend to radiate to nontarget conductors belonging to other utilities, such as telecommunications, gas, and cable TV. False readings generated by these RF units put repair crews at risk of locating the wrong lines, marking them, digging them up and so damaging another company's facilities. Crews at Florida Power Light Co (FP L) now are using a microprocessor-controlled transmitter that energizes the target cable at about 7776 Hz. This tracing frequency energizes only the secondary cable, even when nontarget conductors are nearby. An above-ground receiver detects this signal and guides the operator along the cable path. The instrument, known as the SFL-2000, is sold by AVO International, Blue Bell, Pa. 3 figs.
- OSTI ID:
- 6671853
- Journal Information:
- Electrical World; (United States), Vol. 208:12; ISSN 0013-4457
- Country of Publication:
- United States
- Language:
- English
Similar Records
Laboratory Instrument Software Controlled Spread Spectrum Time Domain Reflectometry for Electrical Cable Testing
Nondestructive Evaluation (NDE) of Cable Anomalies using Frequency Domain Reflectometry (FDR) and Spread Spectrum Time Domain Reflectometry (SSTDR)
Related Subjects
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
ELECTRIC CABLES
DETECTION
ELECTRICAL FAULTS
ELECTRIC UTILITIES
MICROPROCESSORS
RADIO EQUIPMENT
RF SYSTEMS
UNDERGROUND POWER TRANSMISSION
CABLES
COMPUTERS
CONDUCTOR DEVICES
ELECTRICAL EQUIPMENT
ELECTRONIC CIRCUITS
ELECTRONIC EQUIPMENT
EQUIPMENT
MICROELECTRONIC CIRCUITS
POWER TRANSMISSION
PUBLIC UTILITIES
240301* - Power Transmission Lines & Cables- Power Cables- (1990-)
240400 - Power Transmission & Distribution- Health & Safety- (1990-)
990200 - Mathematics & Computers