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Grego
Associate

Join Date: Aug 2005
Posts: 54

Galvanic Anode Spacing

06/05/2007 11:35 AM

Could anyone help me out with the value of electric permeability of sea water or a related value.

In trying to calculate spacing for a galvanic anode arrangement, I tend to use the inverse square law to estimate the minimum distance for an optimum electric charge of an anode that would provide a protective field around an offshore structure.

I got stuck in evaluation the inverse square law equation. why? finding a value for the electric permeability of sea water to replace the value of electric permeability of space as used in Coulomb contant.
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Bluestone
Guru

Join Date: Nov 2006
Location: OH USA
Posts: 549
Good Answers: 27
#1

Re: Galvanic Anode Spacing

06/06/2007 11:15 AM

The characteristic you probably need is the electrical conductivity of sea water, which varies with salinity and depth. Once again, Google is our friend. A search on "electrical conductivity of sea water" will result in several fact sheets and particularly useful tables on salinity versus electrical conductivity in a U.K. National Physical Laboratory report by Kaye & Laley.

Good luck with your project.
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Hankt
Associate

Join Date: Feb 2007
Location: Concord CA, (near San Francisco)
Posts: 44
#2

Re: Galvanic Anode Spacing

06/06/2007 4:59 PM

Grego
Contact Corrpro Companies, Inc.

2799 Miller Street

San Leandro CA 94577

510-614-8800

www. corrpro.com

This is there entire business. I used them when constructiong a new power plant.

Hank
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