Zinc Ribbon Anodes

A zinc ribbon anode provides cathodic protection (CP) for underground coated pipelines. Zinc, being a sacrificing element in zinc ribbon anodes, contributes to a very simple, cost-effective and maintenance-free corrosion control method for buried or immersed metals such as iron, steel, aluminum or copper. Zinc ribbon anodes are an ideal solution only for coated pipelines.

Zinc ribbon anodes are especially useful:

  • Where human intervention is limited or for isolated locations (e.g., intrastate or interstate pipelines)
  • Where other cathodic protection (CP) systems require monitoring and frequent maintenance
  • Where an external power source are not possible (e.g., locations where equipment is battery or solar powered)

Zinc ribbon anodes are used in a variety of applications, including:

  • Simple and cost-effective solutions that provide cathodic protection to underground petroleum, water or sewage pipelines
  • When the effect of an AC current on pipelines must be minimized
  • As sacrificial cathodic protection on the bottom portion of storage tanks built above ground

Typical Application

Onshore
AC Mitigation
Pipeline
Tank Bottom

FEATURES

 
Product Giga Extra Normal Mini
Cross section: 25,4mm x31,75mm
1″ x 11/4 “
15,88mmx22,22mm
5/8″ x 7/8 “
12,7mm x 4,28mm
1/2″ x 9/16 “
8,73mm x11,32mm
11/32 x 15/32
Weight: 3.570kg/m
2.4lbs/ft
1.785kg/m
1.2lbs/ft
0.8925kg/m 0.6lbs/ft 0.372kg/m 0.25lbs/ft
Diameter of galvanised wire core: 4.7mm
0.185″
3.43mm
0.135″
3.3mm
0.13″
2.92mm
0.115″
Standard coil length: 30.5m
(100ft)
61.0m
(200ft)
152.0m
(500ft)
305m
(1000ft)
Standard coil ID: 91.44mm
(36″)
91.44mm
(36″)
30.5mm
(12″)
30.5mm
(12″)
Packing: Steel-banded random-wound open coils Steel-banded random-wound open coils Wood Reels Wood Reels

Chemical Composition ASTM B418

 Element Type I Type II
Aluminum 0.1-0.5% <0.005%
Cadmium 0.035-0.10% <0.003%
Iron <0.005% <0.014%
Copper <0.003% <0.002%
Pb <0.006% <0.003%
Mg
Other single <0.02% <0.001%
Total Others <0.10% <0.005%
Zinc Balance Balance
Electrochemical characteristics
Capacity min 780 Ahr/Kg 740 Ahr/Kg
Closed circuit potential (Ag/AgCl) -1.03V -1.00V
Consumption rate 11.2Kg/year 11.9Kg/year

Cable

Length: 10m

Cross section

  • 6sqmm
  • 10sqmm
  • 16sqmm
  • 25sqmm

Insulation/Sheathing

    • PVC/PVC
    • XLPE/PVC
    • HMWPE

Cable Steel connection

  • Copper crimp link
  • Brazing

Insulation material between Cable anodes core

  • Epoxy Resin/heat shrink
  • Splice kit

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