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ISO 13485:2016 Certified

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AC Mitigation

Mitigate Pipeline Inductive/Conductive Interference with Plattline™

The long-term trend in the United States and many other countries is shared land use for pipelines and other utilities. This movement has increased the number of overhead high voltage transmission lines parallel to and sharing a corridor with an underground pipeline. This combination has increased the need for grounding of the pipeline to dissipate interference.

Specification Chart

AC-Mitigation-Super
AC-Mitigation-Plus
AC-Mitigation-Standard
AC-Mitigation-Small
Product Size
Super
Plus
Standard
Small
Cross Sectional Dimensions:
Inches
Millimeters

1 x 1¼
25.4 x 31.75


5/8 x 7/8
15.88 x 22.22


½ x 9/16
12.7 x 14.28

11/32 x 13/32
8.73 x 10.32
Weight/Unit
Length Pounds/Foot
Kilogram/Meter

2.4
3.570

1.2
1.785

0.6
0.893

0.25
0.372
Diameter of Core Wire
Inches
Millimeters

0.185
4.70

0.135
3.43

0.130
3.30

0.115
2.92
Package Size
* Special Order Size
100 ft Coil
*500 ft Reel
200 ft Coil
*1000 ft Reel
2000 ft Reel
500 ft Reel
*1000 ft Reel
*3600 ft Reel
1000 ft Reel

In these systems, A.C. voltages are transmitted to the pipeline by conductive or inductive interference. Magnetic induction acts along the pipeline or pipeline segment that is approximately parallel to the power line and can cause significant pipeline potentials even at relatively large separation distances. 

Consideration must be given to safety of personnel and the public who may come into contact with above ground portions of the pipeline such as valves and test stations. These exposed structures can be a potential shock hazard when touched while the soil is at a significantly different potential. 

Advances in interference control have resulted in the gradient control wire method. This method consists of one or more bare zinc conductors buried parallel to and near the pipeline and regularly connected to it. Plattline™ zinc ribbon anode used in this way is very effective in mitigating excessive pipeline potentials due to both inductive and conductive interference. 

Plattline I – is an alloyed zinc product and is generally used in seawater or brackish water systems. It meets the chemical requirement of MIL-A-18001K and ASTM B418-95a Type I.
 
Plattline II – is a high purity product and generally used in underground and fresh water systems. It meets the chemical requirements of ASTM B418-95a Type II.
AC Mitigation Diagram
AC Mitigation

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