
|
Suites 2 & 3 |

|
DC Voltage Gradient Technology & Supply Ltd. |
|
We Lead - Others Follow |
|
© DCVG Ltd. 2008 |
|
ADVANTAGES OF THE ANALOGUE DCVG cont. |
|
Possible to determine Depth of Burial of the pipeline from DCVG Measurements. |
|
|
|
The Corrosivity Factor, a measure of the protective nature of the inorganic film on the steel surface at a Coating Fault can be calculated from DCVG Measurements. |
|
|
|
Possible to detect Coating Faults the size of a fingernail buried two metres down. |
|
|
|
The Technique can be used to survey pipelines buried under Concrete and Asphalt paving. Some modifications to the normal survey method are required. |
|
|
|
The accuracy of the DCVG Technique allows surveying to be carried out in complex pipeline networks such as City Streets, Process Plant and Tank Farms. |
|
|
|
The analogue DCVG Technique can be used to survey pipelines under Overhead Power Lines. AC does not interfere with the DCVG technique. |
|
|
|
The Analogue DCVG Technique can be operated at the same time as an AC Pipe Locator. |
|
|
|
Because there is no trailing cable the technique is not interfered with by animals, people etc. that could break a trailing cable. |
|
|



|
Polyester coating failure |
|
Fusion Bonded Epoxy coating failure |
|
Polyester coating failure |