Zinc Ribbon

Today, most electric power generation companies require that qualified corrosion professionals perform data collection and studies to determine the presence and degree of AC interference on crossing or parallel pipelines within AC corridors. The primary means of mitigating AC voltages on such pipelines is extruded zinc ribbon anodes.

Although the industry has experienced considerable success with the application of zinc ribbons for induced, AC and fault currents, one of the challenges has been the use of zinc ribbons in cold weather environments (typically less than 52° F. Corrpro has worked with the University of Wisconsin, the General Research Institute of Non-Ferrous Metals (GRINM) and its suppliers to develop a zinc material that is designed for challenging colder weather climates. Further, this state-of-the-art material meets the most stringent industry standards, ASTM B 4 Type II standards and is manufactured in an ISO 9000 certified facility. This superior zinc material ensures high performance and our QA/QC program is one of the
most stringent in the industry.

AC mitigation techniques should only be employed through conscientious, professional engineering recommendations. As a leading provider of AC mitigation and cathodic protection services, Corrpro’s registered professional electrical engineers and NACE International certified corrosion specialists are available to assist with AC interference studies and AC mitigation design and construction.

NACERP0177-00
Recommended Practice on Mitigation of Alternating Current Lightning Effects on Metallic Structures and Corrosion Control Systems. AC voltage to ground of >15 volts is considered to be a potential shock hazard. Voltages and currents above the level require AC mitigation or evidence that a potential shock hazard does not exist.


Zinc Anodes
The new generation of high-quality zinc material generates an open circuit potential of 1.1 volts with respect to a Cu/CuSO4 reference electrode. Made from 99.99 percent pure high-grade zinc, Corrpro zinc anodes offer a 90 percent current efficiency and deliver a current capacity of 335 amp-hrs./lb. This high-purity composition also ensures the anode material is more resistant to passive films. In fact, Corrpro zinc anodes meet the highest quality standards.