ground resistance Articles

  • Protective coatings for Underground utility concrete structures

    As our cities and municipalities grow older, the utility and wastewater infrastructure and corrosion preventive program for underground asset protection are aging with them. Municipalities and Utility Companies are struggling to handle rehabilitation measures and effective corrosion prevention programs to deal with prolonging the life of their buried assets. More municipalities are in the process ...


    By Sauereisen Inc.

  • Grounding resistance measurement by grid electrode in Brunei Darussalam

    This paper presents soil resistivity and grounding resistance measurements. The measured soil resistivity is used as the input of CYME GRD software for simulation purpose. The rms error between the measured and the calculated ground resistivity is found to be 4.38%. The grounding resistances are measured by placing the electrode as single and double rectangular grids horizontally into the soil. A ...


    By Inderscience Publishers

  • Grounding resistance measurement using vertically driven rods near residential areas

    Soil resistivity is usually measured at the selected site either for new installation or in the existing grounding system. In this paper, soil resistivity and grounding resistance are measured at the four selected sites of the Lambak Kanan, a residential area of Brunei Darussalam. The measured soil resistivities are then compared with the resistivities calculated by CYM GRD software and the rms ...


    By Inderscience Publishers

  • Roll along resistivity survey

    A roll-along survey is a method for operator to survey a long line. After the initial survey, the operator will leave one cable on the ground and move the instrument and cables forward. So there is always one cable overlap between two surveys. Alternatively, the operator can divide the cable in half and only overlap 16 electrode spacing. In this way, the opearator could complete the survey ...

  • Potential soil characteristics for riverbank filtration using 2-D ground resistivity in Kota Lama Kiri, Kuala Kangsar

    Identifying the subsurface profile for riverbank/bed filtration (RBF) using conventional methods such as drilled boreholes is usually labor intensive, costly and acquires only 1-D profiling. Hence, a 2-D ground resistivity method was used as an alternative to obtain a 2-D subsurface profile by extending to 200 m length at Kota Lama Kiri, Kuala Kangsar, Perak site area. Four resistivity survey ...


    By IWA Publishing

  • What is 61-channel resistivity meter?

    FlashRES resistivity meter has 64 electrodes, it uses one common ground electrode, two electrodes as current injection electrodes. For each current injection between A and B, the FlashRES resistivity meter measures the potential on remaining electrodes against the common ground electrode. In this way, 61 MN voltages are measured and hence FlashRES is a 61 channal resistivity meter. ...

  • Not All Stainless Steel Resists Corrosion

    For Municipalities and Municipal Utilities Authorities struggling to deal with corrosion issues, knowing where to turn when faced with these challenges can be daunting. Logan Township Municipal Utilities Authority, of NJ was faced with such problems when it was discovered that a five year old stainless steel headworks tank at their wastewater treatment facility was experiencing extreme ...


    By Sauereisen Inc.

  • MASW and resistivity sounding case study

    Anclote Natural Gas Conversion Project, Pasco County, FL  Our client was coordinating the conversion of an oil-burning power plant to natural gas. As part of the associated geotechnical study, GeoView, Inc. was tasked with determining the S-wave velocity and vertical resistivity structure at the site. For the seismic portion of the study, MASW (Multi-channel Analysis of Surface ...


    By GeoView, Inc.

  • Brüel & Kjær’s radiation-resistant accelerometers

    Carrying out vibration measurements in harsh industrial environments is much easier for engineers with Brüel & Kjær’s new Type 8347-C Accelerometer. The Type 8347-C accelerometer can withstand temperatures ranging from -196°C (-321°F) to +482°C (+900°F) and has high resistance to radiation. The shear design ensures the accelerometer  superior thermal ...

  • The key advantages of FlashRES resistivity meter

    FlashRES-UNIVERSAL is the first instrument in the world that can fully utilise all its electrodes during data collection.  It is a significant technological breakthrough. FlashRES-UNIVERSAL has following key advantages: FlashRES is a 61-channal resistivity/IP system and it is extremely fast For each current injection, conventional resistivity systems usually collect ...

  • LNAPL remediation using electrical resistance heating

    Abstract An Electrical Resistance Heating (ERH) pilot test was conducted in the fall of 1998 to determine the effectiveness of using ERH in combination with soil vapor extraction (SVE) for the remediation of benzene and light nonaqueous-phase liquids (LNAPL) at an island location on a river in the Midwest. Hydrocarbon-stained soils were discovered on an island in Ohio in May 1993 during the ...


    By TRS Group, Inc.

  • Using Resistivity for Basalt Site Characterization - Case Study

    Purpose A mining company in Turkey hoped to determine existing and new alternative basalt zones at an existing basalt mining site by using Electrical Resistivity Imaging (ERI). Process Our client, Ali Karan, used 84 electrodes spaced at 10 meters and two lines 5 meters apart inside the study ...


    By Advanced Geosciences, Inc.

  • Exploring Soil Resistivity in Lima, Peru - Case Study

    In April 2013, in partnership with SensorVital and Pontificia Universidad Católica del Perú, AGI conducted a workshop focused on exploring the resistivity of shallow soil at Pontificia Universidad ...


    By Advanced Geosciences, Inc.

  • Grounding equipment can prevent costly repairs

    Every remote environmental monitoring station should include a plan for an Earth Ground. All sensors, loggers and telemetry devices should be bonded, or connected, to the Earth Ground in order to protect instrument circuitry from damage due to changes in electric potential. Electric potential is defined as the difference in electrical energy between two points and is typically measured in volts ...

  • Development of post–tensioned self–centring structures for earthquake resistance

    A three–story frame was designed for earthquake resistance by using post–tensioned (PT) columns and beams. Two interior connections, representing the first floor column and beam sizes, were tested under cyclic loading to evaluate the effects of energy dissipation and PT load and on the seismic behaviour. A full–scale one–story two–bay specimen frame, which was a substructure of the three–story PT ...


    By Inderscience Publishers

  • Social resistance to biotechnology: attempts to create a Genetically Modified-free territory in Brazil

    This paper looks at the attempt to create a territory free of transgenic crops in the state of Rio Grande do Sul (RS) Although the state government had legal grounds under federal law and court decisions that banned these crops in Brazil, resistance by groups representing local farmers managed to disseminate the planting of transgenic soybeans in the state. The reasons for the government's ...


    By Inderscience Publishers

  • First State-funded cleanup using electrical resistivity heating technology

    The Remediation and Redevelopment Division (RRD) completed remediation at a former dry cleaning facility in the city of Owosso using electrical resistivity heating (ERH) technology. Electrical resistivity heating is an in­situ electrical heating technology that uses electricity and applies it into the ground through electrodes. The resistance of the electricity traveling through the ground ...


    By TRS Group, Inc.

  • Panama Canal: Boat Towed 3D Resistivity Surveys - Case Study

    The Panama Canal Authority (ACP) needed to expand the canal in order to accommodate larger ships (and more traffic)—but first, they needed to know two things: what types of sediment loads needed to be dredged out—and more importantly—how much these loads would cost. That’s where AGI marine resistivity imaging ...


    By Advanced Geosciences, Inc.

  • Bedford Pumps delivers ground breaking technology in deep shaft project

    Bedford Pumps Ltd, in collaboration with Morgan Farrans jv, recently contributed to the success of one of the biggest infrastructure projects in Northern Ireland with the installation of six 15 tonne Storm Water pumps. The pumps, among the largest in Northern Ireland, are a crucial part of Northern Ireland Water’s £160 million Belfast Sewers project, commissioned to overhaul the ...


    By Bedford Pumps Ltd

  • Low-Flow (Minimal Drawdown) Ground-Water Sampling Procedures

    Untitled Document Background The Regional Superfund Ground Water Forum is a group of ground-water ...


    By Solinst Canada Ltd.

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