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Mauritanian HV Electric Transmission Corridor to be Surveyed with SP60 GNSS Receiver

By [email protected] - 21st March 2018 - 09:36

The Spectra Precision SP60 GNSS receiver has been selected to perform survey work for construction of a new 450-kilometer electric power transmission corridor. Connecting Mauritania’s two largest cities, the capital Nouakchott and to the south Nouadhibou, the 225/90Kv transmission line parallels the Atlantic Ocean as it traverses the Sahara Desert. The Mauritanian Electricity Company, SOMELEC awarded the sub-contract for surveying the transmission line and infrastructure to ETAFAT, a geospatial data acquisition and processing firm. ETAFAT tested the SP60 data with RTX corrections and obtained consistently successful results. The geodetic survey was related to several Ground Control Points (GCP) used in airborne survey. The measurement itself was conducted using two methods, dependently: the classical statistical method, and the RTK GNSS method. The SP60 met or exceeded the required +/- 15 cm order of accuracy. According to baseline processing and adjustment reports, the SP60 delivered superior results under all conditions.