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ELECTRICAL INTERFERENCE ANALYSIS
AND MITIGATION DESIGN |
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Pipelines are often forced to share right-of-way corridors with
high voltage power lines and other facilities. As a result, inductive
and conductive electrical interference is an increasingly familiar
problem. The design and installation of mitigation systems on the
pipelines can reduce the interference levels and eliminate safety
and operational problems.
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| DATA COLLECTION
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SOIL RESISTIVITY
ANALYSIS |
| Through field surveys and investigation,
ARK Engineering determines voltage levels and current flow in both
the underground structures and overhead electrical circuits. Once
a detailed assessment of the current flow is completed, it is possible
to estimate the interference effects and determine possible solutions. |
If required, ARK
Engineering provides soil resistivity analysis using state-of-the-art
instruments to determine soil structure and resistivities of multi-layer
soil. The soil characteristics and the distribution of current in
the soil surrounding a structure is very important in determining
electrical interference effects on nearby structures and the effectiveness
of a mitigation system. |
| ELECTROMAGNETIC
& CONDUCTIVE INTERFERENCE ANALYSIS |
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If data collection and testing indicate the need for further analysis,
ARK Engineering conducts a detailed analysis using state-of-the-art
modeling software. The software models the interference effects
based on technical parameters of both utilities. The programs analyze
the combined effects of inductive and conductive coupling for steady
state and fault conditions.
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| MITIGATION DESIGN |
POST COMMISSIONING
TESTING |
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ARK Engineering designs the most appropriate and cost effective
mitigation system to reduce electrical interference to safe levels.
The design is integrated into the client's construction drawings
for installation on a new build or into existing facilities.
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As part of our comprehensive engineering services,
ARK Engineering provides post commissioning testing to ensure that
the mitigation system is functioning as designed and that it is effectively
reducing the interference levels on the buried structure. |
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| MITIGATION
SYSTEM INSTALLATION |
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In addition to performing testing, interference analysis, and
designing mitigation systems, ARK Engineering's team of experienced
engineers and technicians also install and commission AC mitigation
systems.
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| SYSTEM
INSTALLATION |
START-UP
TESTING |
| ARK Engineering's Installation and Testing Division
staff has extensive experience in the installation of AC mitigation
systems. Great care is taken to properly install the system materials
so that they will meet their design life expectations. |
As part of our comprehensive
AC interference services, ARK Engineering provides start-up testing
and commissioning of these systems. We perform all of the necessary
testing to ensure that the equipment is functioning as designed and
is effectively reducing the interference levels on the pipeline. |
| MATERIALS
PROCUREMENT |
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Proper selection of system materials is crucial to ensuring that
the system performs as designed. The choice of materials has an
economic aspect as well. ARK Engineering has established relationships
with manufacturers and distributors of reliable corrosion control
products. These products provide the most cost effective and dependable
protection.
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| © 2006 ARK Engineering
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