Continuous Anode

CerAnode PiggyBack Pipeline Anode System™

 

Functions Efficiently in Arid Soils or Immersed in Water

 

  • Continuous Anode Technology
  • Easy to Install
  • Follows Pipeline Symmetry
  • 100% Factory Connections
  • Optimized for Current Distribution
  • >50 Year Anode Design Life
  • Optimized Power Efficiency
  • Cost Effective
  • Optimized for Low Groundbed Resistance
  • Arrives Ready to Lay in Place

Ideal Anode to Coke Interface
Ideal Coke to Earth Interface
An Ideal Execution of An Ideal Technology

Anode MMO Element Current Density 
Anode to Coke Current Density Based on 20 Year Life17.4 A/m²
Anode to Coke Current Density Based on 30 Year Life11.6 A/m²
Anode to Coke Current Density Based on 50 Year Life7.0 A/m²
Anode Coke Sock Current Density 
Coke to Earth Interface Current Density Based on 20 Year Life0.653 A/m²
Coke to Earth Interface Current Density Based on 30 Year Life0.435 A/m²
Coke to Earth Interface Current Density Based on 50 Year Life0.261 A/m²

The Technology associated with the Cathodic Protection of underground pipelines has undergone fundamental innovations. Unprecedented optimization is now possible based on close to ideal current distribution. The CerAnode Continuous Anode System, the PiggyBack Pipe Anode Mixed Metal Oxide (MMO) Anode System is closely related to the CerAnode PiggyBack Tank Anode which has been in operation by major oil companies since 1992 with earlier versions in 1990. The mode of operation of the different versions and their theory of operation and application are the same. These systems operate in close proximity to the cathode providing optimized current distribution, low groundbed resistance and better than ever power efficiencies. The individual components of these systems have been used by CerAnode since the mid 1980’s.

PiggyBack™ Pipe Anode with Coke Sock -- Characteristics
PiggyBack Pipeline Anode Model PBP-15-33/50
Coke Sock Anode Diameter 40 mm
MMO Anode Wire Diameter 1.5 mm
Anode to Coke Current Density Based on 20 Year Life 17.4 A/m²
Coke to Earth Interface Current Density Based on 20 Year Life 0.653 A/m²
Primary Header Cable Cross Section 13.3 mm²
MMO Anode Rating for 20 years 82 mA/m
MMO Anode Rating for 30 years 55 mA/m
MMO Anode Rating for 50 years 33 mA/m
Max. Attenuation in ≥2000 ohm-cm Soil - Both Ends Powered See Note 1 10 %
Coke Volume 0.00126 m³/m
Coke Weight 1.5 kg/m
Coke Specification SC-3 Loresco®
Anode Length per Wooden 32" x 24" Spool 152 m See Note 2
Gross Weight per Spool 250 kg

 

NOTES:
  1. Anode Wire and Internal Header Cable Electronic Resistance plus Connection Spacing per the above specification will have no greater Attenuation than 10% in Groundbed installations with Soil Resistivity of ≥2000 ohmcm when powered from both ends. If the resistivity is lower the factory design can usually be altered to accommodate. PiggyBack Pipeline Anode Model PBP-15-33/50
  2. When multiple lengths of the 152 meter lengths are used to form a longer anode, an Auxiliary Header Cable connected where 152 meter lengths are joined minimizes attenuation. The Auxiliary Header Cable should be large enough to carry the current without significant voltage drop. Balancing Resistors at these joint are sometimes needed to compensate for the IR Loss for long runs. This use of an Auxiliary Header Cable and Balancing Resistors permits longer runs with when powered from only one end or when soil resistivity is exceptionally low.
BACK TO HOME