Recommended-Ranges-for-CP-FINAL

Product catalog summary

Recommended Ranges for Cathodic Protection

Introduction: The document discusses the selection of sacrificial anodes for vessels, focusing on the surface areas and types of metals to be protected based on their electronegative potentials. The Galvanic Series of Metals is used to predict galvanic reactions and corrosion.

Specifications: According to the American Boat and Yacht Council (ABYC) E-2 Cathodic Protection guidelines, the sacrificial anode in a cathodic protection system should maintain a minimum 200mV differential relative to the most negative metal being protected. It is noted that higher negative voltages can decrease the effectiveness of antifouling measures.

Recommended Voltage Ranges for Hull Materials:

Fibreglass: -550 to -900 mV
Wood: -550 to -600 mV
Aluminium: -900 to -1100 mV
Steel: -800 to -1050 mV
Non-Metallic with Aluminium Drives: -900 to -1050 mV

These ranges are derived from the ABYC E-2 Cathodic Protection Table II.

Proprietary Information: The document is the exclusive property of Marine Protection Systems Pty Ltd and cannot be reproduced or used without permission.

Catalog excerpts

CATHODIC PROTECTION The selection of sacrificial anodes for a vessel is dependent on the surface areas and type of metals to be protected with reference to their electronegative potentials. The Galvanic Series of Metals can be used to determine the tendency of a galvanic reaction and subsequent galvanic corrosion. American Boat and Yacht Council (ABYC) E-2 Cathodic Protection notes: • The sacrificial anode used in a cathodic protection system should be capable to inducing and maintaining a minimum 200mV differential relative to the most negative metal being • There is a decrease in the effectiveness of antifoul with higher negative voltages *ABYC E-2 Cathodic Protection Table I Maddox Anode Zinc Anode This image remains the exclusive property of Marine Protection Systems Pty Ltd, and must not be reproduced, replicated, copied or used without the expressed consent of Marine Protection Systems Pty Ltd ©2011 This material remains the exclusive property of Marine Protection Systems Pty Ltd and must not be reproduced, replicated, copied or used without the expressed consent of Marine Protection Systems Pty Ltd © 2011 15a Hector Street, Osborne Park, Perth WA 6017, Australia

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